Nest instr v3 #194
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Nest instr v3 #194
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July 8, 2015 14:51
Create new header file "nest-pmu.h" to add the data structures and macros needed for the nest pmu support. Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Nest Counters can be configured via PORE Engine and OPAL provides an interface to start/stop it. OPAL side patches are posted in the skiboot mailing.
Create a file "nest-pmu.c" to contain nest pmu related functions. Code
to detect nest pmu support and parser to collect per-chip reserved memory
region information from device tree (DT).
Detection mechanism is to look for specific property "ibm,ima-chip" in DT.
For Nest pmu, device tree will have two set of information.
1) Per-chip reserved memory region for nest pmu counter collection area.
2) Supported Nest PMUs and events
Device tree layout for the Nest PMU as follows.
/ -- DT root folder
|
-nest-ima -- Nest PMU folder
-ima-chip@<chip-id> -- Per-chip folder for reserved region information
|
-ibm,chip-id -- Chip id
-ibm,ima-chip
-reg -- HOMER PORE Nest Counter collection Address (RA)
-size -- size to map in kernel space
-Alink_BW -- Nest PMU folder
|
-Alink0 -- Nest PMU Alink Event file
-scale.Alink0.scale -- Event scale file
-unit.Alink0.unit -- Event unit file
-device_type -- "nest-ima-unit" marker
....
Subsequent patch will parse the next part of the DT to find various
Nest PMUs and their events.
Parse device tree to detect supported nest pmu units. Traverse through each nest pmu unit folder to find supported events and corresponding unit/scale files (if any). The nest unit event file from DT, will contain the offset in the reserved memory region to get the counter data for a given event. Kernel code uses this offset as event configuration value. Device tree parser code also looks for scale/unit in the file name and passes on the file as an event attr for perf tool to use in the post. Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Add code to create event/format attributes and attribute groups for each nest pmu. Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Add set of generic nest pmu related event functions to be used by each nest pmu. Add code to register nest pmus. Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Adds cpumask attribute to be used by each nest pmu since nest units are per-chip. Only one cpu (first online cpu) from each node/chip is designated to read counters. On cpu hotplug, dying cpu is checked to see whether it is one of the designated cpus, if yes, next online cpu from the same node/chip is designated as new cpu to read counters. Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
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Nov 11, 2015
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Nov 12, 2015
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Nov 19, 2015
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Nov 26, 2015
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Dec 4, 2015
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Dec 7, 2015
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Dec 9, 2015
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
ddstreet
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Dec 10, 2015
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Dec 10, 2015
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Dec 11, 2015
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Dec 11, 2015
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Dec 18, 2015
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Jan 1, 2016
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Jan 6, 2016
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Jan 13, 2016
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Jan 14, 2016
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Jan 15, 2016
…patch-fixes ERROR: code indent should use tabs where possible torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: please, no spaces at the start of a line torvalds#171: FILE: mm/page_idle.c:75: + if (!pmd_present(*pmd))$ WARNING: Missing a blank line after declarations torvalds#194: FILE: mm/page_idle.c:93: + pmd_t pmde = *pmd; + barrier(); WARNING: Missing a blank line after declarations torvalds#304: FILE: mm/rmap.c:867: + pmd_t pmde = *pmd; + barrier(); total: 1 errors, 3 warnings, 327 lines checked NOTE: Whitespace errors detected. You may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
fengguang
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Jul 25, 2017
Hi, On Mon, Jul 24, 2017 at 08:17:01PM +0200, Mike Galbraith wrote: > Now bisected and verified via revert, the culprit is: > > cf8e0fe mm/zsmalloc: simplify zs_max_alloc_size handling > > Reproducer: ltp::testcases/bin/zram03. > Thanks for the report and bisecting. I believe this patch should fix it. Thanks! From 0ffbd3c8769fdf56e2f14908f890f9d1703ed32e Mon Sep 17 00:00:00 2001 From: Minchan Kim <minchan@kernel.org> Date: Tue, 25 Jul 2017 15:15:18 +0900 Subject: [PATCH] zram: do not free pool->size_class Mike reported kernel goes oops with ltp:zram03 testcase. [ 1449.835161] zram: Added device: zram0 [ 1449.929981] zram0: detected capacity change from 0 to 107374182400 [ 1449.968583] BUG: unable to handle kernel paging request at 0000306d61727a77 [ 1449.975550] IP: zs_map_object+0xb9/0x260 [ 1449.979472] PGD 0 [ 1449.979473] P4D 0 [ 1449.981488] [ 1449.984997] Oops: 0000 [#1] SMP [ 1449.988139] Dumping ftrace buffer: [ 1449.991545] (ftrace buffer empty) [ 1449.995120] Modules linked in: zram(E) xfs(E) libcrc32c(E) btrfs(E) xor(E) raid6_pq(E) loop(E) ebtable_filter(E) ebtables(E) ip6table_filter(E) ip6_tables(E) iptable_filter(E) ip_tables(E) x_tables(E) af_packet(E) br_netfilter(E) bridge(E) stp(E) llc(E) iscsi_ibft(E) iscsi_boot_sysfs(E) nls_iso8859_1(E) nls_cp437(E) vfat(E) fat(E) intel_powerclamp(E) coretemp(E) cdc_ether(E) kvm_intel(E) usbnet(E) mii(E) kvm(E) irqbypass(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) iTCO_wdt(E) ghash_clmulni_intel(E) bnx2(E) iTCO_vendor_support(E) pcbc(E) ioatdma(E) ipmi_ssif(E) aesni_intel(E) i5500_temp(E) i2c_i801(E) aes_x86_64(E) lpc_ich(E) shpchp(E) mfd_core(E) crypto_simd(E) i7core_edac(E) dca(E) glue_helper(E) cryptd(E) ipmi_si(E) button(E) acpi_cpufreq(E) ipmi_devintf(E) pcspkr(E) ipmi_msghandler(E) [ 1450.065731] nfsd(E) auth_rpcgss(E) nfs_acl(E) lockd(E) grace(E) sunrpc(E) ext4(E) crc16(E) mbcache(E) jbd2(E) sd_mod(E) ata_generic(E) i2c_algo_bit(E) ata_piix(E) drm_kms_helper(E) ahci(E) syscopyarea(E) sysfillrect(E) libahci(E) sysimgblt(E) fb_sys_fops(E) uhci_hcd(E) ehci_pci(E) ttm(E) ehci_hcd(E) libata(E) drm(E) megaraid_sas(E) usbcore(E) sg(E) dm_multipath(E) dm_mod(E) scsi_dh_rdac(E) scsi_dh_emc(E) scsi_dh_alua(E) scsi_mod(E) efivarfs(E) autofs4(E) [last unloaded: zram] [ 1450.107900] CPU: 6 PID: 12356 Comm: swapon Tainted: G E 4.13.0.g87b2c3f-default torvalds#194 [ 1450.116760] Hardware name: IBM System x3550 M3 -[7944K3G]-/69Y5698 , BIOS -[D6E150AUS-1.10]- 12/15/2010 [ 1450.126486] task: ffff880158d2c4c0 task.stack: ffffc90001680000 [ 1450.132401] RIP: 0010:zs_map_object+0xb9/0x260 [ 1450.136843] RSP: 0018:ffffc90001683988 EFLAGS: 00010202 [ 1450.142063] RAX: 0000000000000000 RBX: ffff8801547a98d0 RCX: ffff8801211b78b0 [ 1450.149190] RDX: 0000306d61727a2f RSI: 0000000000160000 RDI: ffff8801547a98f8 [ 1450.156317] RBP: ffffc900016839c8 R08: 0000000004db4200 R09: 0000000000000008 [ 1450.163446] R10: ffff880151329260 R11: 0000000000000000 R12: ffff880158f76000 [ 1450.170573] R13: 0000000000000001 R14: 0000000000000000 R15: ffffea0004db4200 [ 1450.177700] FS: 00007fe1b4e8b880(0000) GS:ffff88017f180000(0000) knlGS:0000000000000000 [ 1450.185782] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1450.191522] CR2: 0000306d61727a77 CR3: 0000000154415000 CR4: 00000000000006e0 [ 1450.198649] Call Trace: [ 1450.201103] zram_bvec_rw.isra.26+0xe8/0x780 [zram] [ 1450.205978] zram_rw_page+0x6e/0xa0 [zram] [ 1450.210077] bdev_read_page+0x81/0xb0 [ 1450.213738] do_mpage_readpage+0x51a/0x710 [ 1450.217837] ? lru_cache_add+0xe/0x10 [ 1450.221498] mpage_readpages+0x122/0x1a0 [ 1450.225420] ? I_BDEV+0x20/0x20 [ 1450.228560] ? I_BDEV+0x20/0x20 [ 1450.231702] ? alloc_pages_current+0x6a/0xb0 [ 1450.235971] blkdev_readpages+0x1d/0x20 [ 1450.239805] __do_page_cache_readahead+0x1b2/0x270 [ 1450.244596] ondemand_readahead+0x180/0x2c0 [ 1450.248777] page_cache_sync_readahead+0x31/0x50 [ 1450.253394] generic_file_read_iter+0x7e7/0xaf0 [ 1450.257922] blkdev_read_iter+0x37/0x40 [ 1450.261756] __vfs_read+0xce/0x140 [ 1450.265160] vfs_read+0x9e/0x150 [ 1450.268389] SyS_read+0x46/0xa0 [ 1450.271533] entry_SYSCALL_64_fastpath+0x1a/0xa5 [ 1450.276149] RIP: 0033:0x7fe1b4344270 [ 1450.279724] RSP: 002b:00007ffdb4299f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 1450.287287] RAX: ffffffffffffffda RBX: 00007fe1b4604678 RCX: 00007fe1b4344270 [ 1450.294414] RDX: 0000000000010000 RSI: 0000000000db2c00 RDI: 0000000000000006 [ 1450.301541] RBP: 00007fe1b4604620 R08: 0000000000000003 R09: 00007fe1b4604678 [ 1450.308667] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000010030 [ 1450.315794] R13: 0000000000010000 R14: 0000000000002710 R15: 0000000000010011 [ 1450.322920] Code: 81 e6 00 c0 3f 00 81 fe 00 00 16 00 0f 85 9f 01 00 00 0f b7 13 65 ff 05 5e 07 dc 7e 66 c1 ea 02 81 e2 ff 01 00 00 49 8b 54 d4 08 <8b> 4a 48 41 0f af ce 81 e1 ff 0f 00 00 41 89 c9 48 c7 c3 a0 70 [ 1450.341785] RIP: zs_map_object+0xb9/0x260 RSP: ffffc90001683988 [ 1450.347698] CR2: 0000306d61727a77 He bisected the problem is [1]. By [1], zram doesn't use double pointer for pool->size_class any more in zs_create_pool so counter function zs_destroy_pool don't need to free it, either. Otherwise, it does kfree wrong address and then, kernel goes Oops. [1] cf8e0fe mm/zsmalloc: simplify zs_max_alloc_size handling Cc: Jerome Marchand <jmarchan@redhat.com> Reported-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Minchan Kim <minchan@kernel.org>
fengguang
pushed a commit
to 0day-ci/linux
that referenced
this pull request
Aug 6, 2017
Mike reported kernel goes oops with ltp:zram03 testcase. [ 1449.835161] zram: Added device: zram0 [ 1449.929981] zram0: detected capacity change from 0 to 107374182400 [ 1449.968583] BUG: unable to handle kernel paging request at 0000306d61727a77 [ 1449.975550] IP: zs_map_object+0xb9/0x260 [ 1449.979472] PGD 0 [ 1449.979473] P4D 0 [ 1449.981488] [ 1449.984997] Oops: 0000 [#1] SMP [ 1449.988139] Dumping ftrace buffer: [ 1449.991545] (ftrace buffer empty) [ 1449.995120] Modules linked in: zram(E) xfs(E) libcrc32c(E) btrfs(E) xor(E) raid6_pq(E) loop(E) ebtable_filter(E) ebtables(E) ip6table_filter(E) ip6_tables(E) iptable_filter(E) ip_tables(E) x_tables(E) af_packet(E) br_netfilter(E) bridge(E) stp(E) llc(E) iscsi_ibft(E) iscsi_boot_sysfs(E) nls_iso8859_1(E) nls_cp437(E) vfat(E) fat(E) intel_powerclamp(E) coretemp(E) cdc_ether(E) kvm_intel(E) usbnet(E) mii(E) kvm(E) irqbypass(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) iTCO_wdt(E) ghash_clmulni_intel(E) bnx2(E) iTCO_vendor_support(E) pcbc(E) ioatdma(E) ipmi_ssif(E) aesni_intel(E) i5500_temp(E) i2c_i801(E) aes_x86_64(E) lpc_ich(E) shpchp(E) mfd_core(E) crypto_simd(E) i7core_edac(E) dca(E) glue_helper(E) cryptd(E) ipmi_si(E) button(E) acpi_cpufreq(E) ipmi_devintf(E) pcspkr(E) ipmi_msghandler(E) [ 1450.065731] nfsd(E) auth_rpcgss(E) nfs_acl(E) lockd(E) grace(E) sunrpc(E) ext4(E) crc16(E) mbcache(E) jbd2(E) sd_mod(E) ata_generic(E) i2c_algo_bit(E) ata_piix(E) drm_kms_helper(E) ahci(E) syscopyarea(E) sysfillrect(E) libahci(E) sysimgblt(E) fb_sys_fops(E) uhci_hcd(E) ehci_pci(E) ttm(E) ehci_hcd(E) libata(E) drm(E) megaraid_sas(E) usbcore(E) sg(E) dm_multipath(E) dm_mod(E) scsi_dh_rdac(E) scsi_dh_emc(E) scsi_dh_alua(E) scsi_mod(E) efivarfs(E) autofs4(E) [last unloaded: zram] [ 1450.107900] CPU: 6 PID: 12356 Comm: swapon Tainted: G E 4.13.0.g87b2c3f-default torvalds#194 [ 1450.116760] Hardware name: IBM System x3550 M3 -[7944K3G]-/69Y5698 , BIOS -[D6E150AUS-1.10]- 12/15/2010 [ 1450.126486] task: ffff880158d2c4c0 task.stack: ffffc90001680000 [ 1450.132401] RIP: 0010:zs_map_object+0xb9/0x260 [ 1450.136843] RSP: 0018:ffffc90001683988 EFLAGS: 00010202 [ 1450.142063] RAX: 0000000000000000 RBX: ffff8801547a98d0 RCX: ffff8801211b78b0 [ 1450.149190] RDX: 0000306d61727a2f RSI: 0000000000160000 RDI: ffff8801547a98f8 [ 1450.156317] RBP: ffffc900016839c8 R08: 0000000004db4200 R09: 0000000000000008 [ 1450.163446] R10: ffff880151329260 R11: 0000000000000000 R12: ffff880158f76000 [ 1450.170573] R13: 0000000000000001 R14: 0000000000000000 R15: ffffea0004db4200 [ 1450.177700] FS: 00007fe1b4e8b880(0000) GS:ffff88017f180000(0000) knlGS:0000000000000000 [ 1450.185782] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1450.191522] CR2: 0000306d61727a77 CR3: 0000000154415000 CR4: 00000000000006e0 [ 1450.198649] Call Trace: [ 1450.201103] zram_bvec_rw.isra.26+0xe8/0x780 [zram] [ 1450.205978] zram_rw_page+0x6e/0xa0 [zram] [ 1450.210077] bdev_read_page+0x81/0xb0 [ 1450.213738] do_mpage_readpage+0x51a/0x710 [ 1450.217837] ? lru_cache_add+0xe/0x10 [ 1450.221498] mpage_readpages+0x122/0x1a0 [ 1450.225420] ? I_BDEV+0x20/0x20 [ 1450.228560] ? I_BDEV+0x20/0x20 [ 1450.231702] ? alloc_pages_current+0x6a/0xb0 [ 1450.235971] blkdev_readpages+0x1d/0x20 [ 1450.239805] __do_page_cache_readahead+0x1b2/0x270 [ 1450.244596] ondemand_readahead+0x180/0x2c0 [ 1450.248777] page_cache_sync_readahead+0x31/0x50 [ 1450.253394] generic_file_read_iter+0x7e7/0xaf0 [ 1450.257922] blkdev_read_iter+0x37/0x40 [ 1450.261756] __vfs_read+0xce/0x140 [ 1450.265160] vfs_read+0x9e/0x150 [ 1450.268389] SyS_read+0x46/0xa0 [ 1450.271533] entry_SYSCALL_64_fastpath+0x1a/0xa5 [ 1450.276149] RIP: 0033:0x7fe1b4344270 [ 1450.279724] RSP: 002b:00007ffdb4299f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 1450.287287] RAX: ffffffffffffffda RBX: 00007fe1b4604678 RCX: 00007fe1b4344270 [ 1450.294414] RDX: 0000000000010000 RSI: 0000000000db2c00 RDI: 0000000000000006 [ 1450.301541] RBP: 00007fe1b4604620 R08: 0000000000000003 R09: 00007fe1b4604678 [ 1450.308667] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000010030 [ 1450.315794] R13: 0000000000010000 R14: 0000000000002710 R15: 0000000000010011 [ 1450.322920] Code: 81 e6 00 c0 3f 00 81 fe 00 00 16 00 0f 85 9f 01 00 00 0f b7 13 65 ff 05 5e 07 dc 7e 66 c1 ea 02 81 e2 ff 01 00 00 49 8b 54 d4 08 <8b> 4a 48 41 0f af ce 81 e1 ff 0f 00 00 41 89 c9 48 c7 c3 a0 70 [ 1450.341785] RIP: zs_map_object+0xb9/0x260 RSP: ffffc90001683988 [ 1450.347698] CR2: 0000306d61727a77 He bisected the problem is [1]. By cf8e0fe ("mm/zsmalloc: simplify zs_max_alloc_size handling"), zram doesn't use double pointer for pool->size_class any more in zs_create_pool so counter function zs_destroy_pool don't need to free it, either. Otherwise, it does kfree wrong address and then, kernel goes Oops. Link: http://lkml.kernel.org/r/20170725062650.GA12134@bbox Signed-off-by: Minchan Kim <minchan@kernel.org> Reported-by: Mike Galbraith <efault@gmx.de> Tested-by: Mike Galbraith <efault@gmx.de> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Jerome Marchand <jmarchan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
fengguang
pushed a commit
to 0day-ci/linux
that referenced
this pull request
Dec 7, 2019
In order to set/get/dump, the tipc uses the generic netlink
infrastructure. So, when tipc module is inserted, init function
calls genl_register_family().
After genl_register_family(), set/get/dump commands are immediately
allowed and these callbacks internally use the net_generic.
net_generic is allocated by register_pernet_device() but this
is called after genl_register_family() in the __init function.
So, these callbacks would use un-initialized net_generic.
Test commands:
#SHELL1
while :
do
modprobe tipc
modprobe -rv tipc
done
#SHELL2
while :
do
tipc link list
done
Splat looks like:
[ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled
[ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI
[ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ torvalds#194
[ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc]
[ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00
[ 59.622550][ T2780] NET: Registered protocol family 30
[ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202
[ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907
[ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149
[ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1
[ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40
[ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328
[ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000
[ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 59.625875][ T2780] tipc: Started in single node mode
[ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0
[ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 59.636478][ T2788] Call Trace:
[ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc]
[ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0
[ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc]
[ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc]
[ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380
[ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc]
[ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc]
[ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270
[ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0
[ 59.643050][ T2788] netlink_dump+0x49c/0xed0
[ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0
[ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800
[ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670
[ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800
[ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90
[ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0
[ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320
[ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0
[ 59.647821][ T2788] ? genl_unlock+0x20/0x20
[ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0
[ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0
[ 59.649276][ T2788] ? genl_rcv+0x15/0x40
[ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0
[ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350
[ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320
[ 59.651491][ T2788] ? netlink_ack+0x940/0x940
[ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0
[ 59.652449][ T2788] genl_rcv+0x24/0x40
[ 59.652841][ T2788] netlink_unicast+0x421/0x600
[ ... ]
Fixes: 7e43690 ("tipc: fix a slab object leak")
Fixes: a62fbcc ("tipc: make subscriber server support net namespace")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
fengguang
pushed a commit
to 0day-ci/linux
that referenced
this pull request
Dec 7, 2019
In order to set/get/dump, the tipc uses the generic netlink
infrastructure. So, when tipc module is inserted, init function
calls genl_register_family().
After genl_register_family(), set/get/dump commands are immediately
allowed and these callbacks internally use the net_generic.
net_generic is allocated by register_pernet_device() but this
is called after genl_register_family() in the __init function.
So, these callbacks would use un-initialized net_generic.
Test commands:
#SHELL1
while :
do
modprobe tipc
modprobe -rv tipc
done
#SHELL2
while :
do
tipc link list
done
Splat looks like:
[ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled
[ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI
[ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ torvalds#194
[ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc]
[ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00
[ 59.622550][ T2780] NET: Registered protocol family 30
[ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202
[ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907
[ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149
[ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1
[ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40
[ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328
[ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000
[ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 59.625875][ T2780] tipc: Started in single node mode
[ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0
[ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 59.636478][ T2788] Call Trace:
[ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc]
[ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0
[ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc]
[ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc]
[ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380
[ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc]
[ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc]
[ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270
[ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0
[ 59.643050][ T2788] netlink_dump+0x49c/0xed0
[ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0
[ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800
[ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670
[ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800
[ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90
[ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0
[ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320
[ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0
[ 59.647821][ T2788] ? genl_unlock+0x20/0x20
[ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0
[ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0
[ 59.649276][ T2788] ? genl_rcv+0x15/0x40
[ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0
[ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350
[ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320
[ 59.651491][ T2788] ? netlink_ack+0x940/0x940
[ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0
[ 59.652449][ T2788] genl_rcv+0x24/0x40
[ 59.652841][ T2788] netlink_unicast+0x421/0x600
[ ... ]
Fixes: 7e43690 ("tipc: fix a slab object leak")
Fixes: a62fbcc ("tipc: make subscriber server support net namespace")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
fengguang
pushed a commit
to 0day-ci/linux
that referenced
this pull request
Dec 7, 2019
In order to set/get/dump, the tipc uses the generic netlink
infrastructure. So, when tipc module is inserted, init function
calls genl_register_family().
After genl_register_family(), set/get/dump commands are immediately
allowed and these callbacks internally use the net_generic.
net_generic is allocated by register_pernet_device() but this
is called after genl_register_family() in the __init function.
So, these callbacks would use un-initialized net_generic.
Test commands:
#SHELL1
while :
do
modprobe tipc
modprobe -rv tipc
done
#SHELL2
while :
do
tipc link list
done
Splat looks like:
[ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled
[ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI
[ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ torvalds#194
[ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc]
[ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00
[ 59.622550][ T2780] NET: Registered protocol family 30
[ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202
[ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907
[ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149
[ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1
[ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40
[ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328
[ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000
[ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 59.625875][ T2780] tipc: Started in single node mode
[ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0
[ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 59.636478][ T2788] Call Trace:
[ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc]
[ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0
[ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc]
[ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc]
[ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380
[ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc]
[ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc]
[ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270
[ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0
[ 59.643050][ T2788] netlink_dump+0x49c/0xed0
[ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0
[ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800
[ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670
[ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800
[ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90
[ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0
[ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320
[ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0
[ 59.647821][ T2788] ? genl_unlock+0x20/0x20
[ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0
[ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0
[ 59.649276][ T2788] ? genl_rcv+0x15/0x40
[ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0
[ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350
[ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320
[ 59.651491][ T2788] ? netlink_ack+0x940/0x940
[ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0
[ 59.652449][ T2788] genl_rcv+0x24/0x40
[ 59.652841][ T2788] netlink_unicast+0x421/0x600
[ ... ]
Fixes: 7e43690 ("tipc: fix a slab object leak")
Fixes: a62fbcc ("tipc: make subscriber server support net namespace")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
vatral
pushed a commit
to theqvd/linux
that referenced
this pull request
Dec 17, 2019
In order to set/get/dump, the tipc uses the generic netlink
infrastructure. So, when tipc module is inserted, init function
calls genl_register_family().
After genl_register_family(), set/get/dump commands are immediately
allowed and these callbacks internally use the net_generic.
net_generic is allocated by register_pernet_device() but this
is called after genl_register_family() in the __init function.
So, these callbacks would use un-initialized net_generic.
Test commands:
#SHELL1
while :
do
modprobe tipc
modprobe -rv tipc
done
#SHELL2
while :
do
tipc link list
done
Splat looks like:
[ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled
[ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI
[ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ torvalds#194
[ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc]
[ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00
[ 59.622550][ T2780] NET: Registered protocol family 30
[ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202
[ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907
[ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149
[ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1
[ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40
[ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328
[ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000
[ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 59.625875][ T2780] tipc: Started in single node mode
[ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0
[ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 59.636478][ T2788] Call Trace:
[ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc]
[ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0
[ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc]
[ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc]
[ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380
[ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc]
[ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc]
[ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270
[ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0
[ 59.643050][ T2788] netlink_dump+0x49c/0xed0
[ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0
[ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800
[ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670
[ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800
[ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90
[ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0
[ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320
[ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0
[ 59.647821][ T2788] ? genl_unlock+0x20/0x20
[ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0
[ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0
[ 59.649276][ T2788] ? genl_rcv+0x15/0x40
[ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0
[ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350
[ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320
[ 59.651491][ T2788] ? netlink_ack+0x940/0x940
[ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0
[ 59.652449][ T2788] genl_rcv+0x24/0x40
[ 59.652841][ T2788] netlink_unicast+0x421/0x600
[ ... ]
Fixes: 7e43690 ("tipc: fix a slab object leak")
Fixes: a62fbcc ("tipc: make subscriber server support net namespace")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
damentz
referenced
this pull request
in zen-kernel/zen-kernel
Dec 18, 2019
[ Upstream commit 9cf1cd8 ] In order to set/get/dump, the tipc uses the generic netlink infrastructure. So, when tipc module is inserted, init function calls genl_register_family(). After genl_register_family(), set/get/dump commands are immediately allowed and these callbacks internally use the net_generic. net_generic is allocated by register_pernet_device() but this is called after genl_register_family() in the __init function. So, these callbacks would use un-initialized net_generic. Test commands: #SHELL1 while : do modprobe tipc modprobe -rv tipc done #SHELL2 while : do tipc link list done Splat looks like: [ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled [ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ #194 [ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc] [ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00 [ 59.622550][ T2780] NET: Registered protocol family 30 [ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202 [ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907 [ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149 [ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1 [ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40 [ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328 [ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000 [ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.625875][ T2780] tipc: Started in single node mode [ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0 [ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.636478][ T2788] Call Trace: [ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc] [ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0 [ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc] [ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc] [ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380 [ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc] [ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc] [ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270 [ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0 [ 59.643050][ T2788] netlink_dump+0x49c/0xed0 [ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0 [ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800 [ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670 [ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800 [ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90 [ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0 [ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0 [ 59.647821][ T2788] ? genl_unlock+0x20/0x20 [ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0 [ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0 [ 59.649276][ T2788] ? genl_rcv+0x15/0x40 [ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0 [ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350 [ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.651491][ T2788] ? netlink_ack+0x940/0x940 [ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0 [ 59.652449][ T2788] genl_rcv+0x24/0x40 [ 59.652841][ T2788] netlink_unicast+0x421/0x600 [ ... ] Fixes: 7e43690 ("tipc: fix a slab object leak") Fixes: a62fbcc ("tipc: make subscriber server support net namespace") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
damentz
referenced
this pull request
in zen-kernel/zen-kernel
Dec 18, 2019
[ Upstream commit 9cf1cd8 ] In order to set/get/dump, the tipc uses the generic netlink infrastructure. So, when tipc module is inserted, init function calls genl_register_family(). After genl_register_family(), set/get/dump commands are immediately allowed and these callbacks internally use the net_generic. net_generic is allocated by register_pernet_device() but this is called after genl_register_family() in the __init function. So, these callbacks would use un-initialized net_generic. Test commands: #SHELL1 while : do modprobe tipc modprobe -rv tipc done #SHELL2 while : do tipc link list done Splat looks like: [ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled [ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ #194 [ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc] [ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00 [ 59.622550][ T2780] NET: Registered protocol family 30 [ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202 [ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907 [ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149 [ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1 [ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40 [ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328 [ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000 [ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.625875][ T2780] tipc: Started in single node mode [ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0 [ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.636478][ T2788] Call Trace: [ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc] [ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0 [ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc] [ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc] [ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380 [ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc] [ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc] [ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270 [ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0 [ 59.643050][ T2788] netlink_dump+0x49c/0xed0 [ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0 [ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800 [ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670 [ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800 [ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90 [ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0 [ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0 [ 59.647821][ T2788] ? genl_unlock+0x20/0x20 [ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0 [ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0 [ 59.649276][ T2788] ? genl_rcv+0x15/0x40 [ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0 [ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350 [ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.651491][ T2788] ? netlink_ack+0x940/0x940 [ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0 [ 59.652449][ T2788] genl_rcv+0x24/0x40 [ 59.652841][ T2788] netlink_unicast+0x421/0x600 [ ... ] Fixes: 7e43690 ("tipc: fix a slab object leak") Fixes: a62fbcc ("tipc: make subscriber server support net namespace") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mrchapp
pushed a commit
to mrchapp/linux
that referenced
this pull request
Dec 20, 2019
[ Upstream commit 9cf1cd8 ] In order to set/get/dump, the tipc uses the generic netlink infrastructure. So, when tipc module is inserted, init function calls genl_register_family(). After genl_register_family(), set/get/dump commands are immediately allowed and these callbacks internally use the net_generic. net_generic is allocated by register_pernet_device() but this is called after genl_register_family() in the __init function. So, these callbacks would use un-initialized net_generic. Test commands: #SHELL1 while : do modprobe tipc modprobe -rv tipc done #SHELL2 while : do tipc link list done Splat looks like: [ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled [ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ torvalds#194 [ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc] [ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00 [ 59.622550][ T2780] NET: Registered protocol family 30 [ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202 [ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907 [ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149 [ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1 [ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40 [ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328 [ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000 [ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.625875][ T2780] tipc: Started in single node mode [ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0 [ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.636478][ T2788] Call Trace: [ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc] [ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0 [ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc] [ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc] [ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380 [ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc] [ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc] [ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270 [ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0 [ 59.643050][ T2788] netlink_dump+0x49c/0xed0 [ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0 [ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800 [ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670 [ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800 [ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90 [ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0 [ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0 [ 59.647821][ T2788] ? genl_unlock+0x20/0x20 [ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0 [ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0 [ 59.649276][ T2788] ? genl_rcv+0x15/0x40 [ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0 [ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350 [ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.651491][ T2788] ? netlink_ack+0x940/0x940 [ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0 [ 59.652449][ T2788] genl_rcv+0x24/0x40 [ 59.652841][ T2788] netlink_unicast+0x421/0x600 [ ... ] Fixes: 7e43690 ("tipc: fix a slab object leak") Fixes: a62fbcc ("tipc: make subscriber server support net namespace") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mrchapp
pushed a commit
to mrchapp/linux
that referenced
this pull request
Dec 20, 2019
[ Upstream commit 9cf1cd8 ] In order to set/get/dump, the tipc uses the generic netlink infrastructure. So, when tipc module is inserted, init function calls genl_register_family(). After genl_register_family(), set/get/dump commands are immediately allowed and these callbacks internally use the net_generic. net_generic is allocated by register_pernet_device() but this is called after genl_register_family() in the __init function. So, these callbacks would use un-initialized net_generic. Test commands: #SHELL1 while : do modprobe tipc modprobe -rv tipc done #SHELL2 while : do tipc link list done Splat looks like: [ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled [ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ torvalds#194 [ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc] [ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00 [ 59.622550][ T2780] NET: Registered protocol family 30 [ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202 [ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907 [ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149 [ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1 [ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40 [ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328 [ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000 [ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.625875][ T2780] tipc: Started in single node mode [ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0 [ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.636478][ T2788] Call Trace: [ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc] [ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0 [ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc] [ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc] [ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380 [ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc] [ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc] [ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270 [ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0 [ 59.643050][ T2788] netlink_dump+0x49c/0xed0 [ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0 [ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800 [ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670 [ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800 [ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90 [ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0 [ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0 [ 59.647821][ T2788] ? genl_unlock+0x20/0x20 [ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0 [ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0 [ 59.649276][ T2788] ? genl_rcv+0x15/0x40 [ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0 [ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350 [ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.651491][ T2788] ? netlink_ack+0x940/0x940 [ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0 [ 59.652449][ T2788] genl_rcv+0x24/0x40 [ 59.652841][ T2788] netlink_unicast+0x421/0x600 [ ... ] Fixes: 7e43690 ("tipc: fix a slab object leak") Fixes: a62fbcc ("tipc: make subscriber server support net namespace") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mrchapp
pushed a commit
to mrchapp/linux
that referenced
this pull request
Dec 20, 2019
[ Upstream commit 9cf1cd8 ] In order to set/get/dump, the tipc uses the generic netlink infrastructure. So, when tipc module is inserted, init function calls genl_register_family(). After genl_register_family(), set/get/dump commands are immediately allowed and these callbacks internally use the net_generic. net_generic is allocated by register_pernet_device() but this is called after genl_register_family() in the __init function. So, these callbacks would use un-initialized net_generic. Test commands: #SHELL1 while : do modprobe tipc modprobe -rv tipc done #SHELL2 while : do tipc link list done Splat looks like: [ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled [ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ torvalds#194 [ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc] [ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00 [ 59.622550][ T2780] NET: Registered protocol family 30 [ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202 [ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907 [ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149 [ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1 [ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40 [ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328 [ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000 [ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.625875][ T2780] tipc: Started in single node mode [ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0 [ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.636478][ T2788] Call Trace: [ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc] [ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0 [ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc] [ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc] [ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380 [ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc] [ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc] [ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270 [ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0 [ 59.643050][ T2788] netlink_dump+0x49c/0xed0 [ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0 [ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800 [ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670 [ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800 [ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90 [ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0 [ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0 [ 59.647821][ T2788] ? genl_unlock+0x20/0x20 [ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0 [ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0 [ 59.649276][ T2788] ? genl_rcv+0x15/0x40 [ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0 [ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350 [ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.651491][ T2788] ? netlink_ack+0x940/0x940 [ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0 [ 59.652449][ T2788] genl_rcv+0x24/0x40 [ 59.652841][ T2788] netlink_unicast+0x421/0x600 [ ... ] Fixes: 7e43690 ("tipc: fix a slab object leak") Fixes: a62fbcc ("tipc: make subscriber server support net namespace") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mrchapp
pushed a commit
to mrchapp/linux
that referenced
this pull request
Dec 20, 2019
[ Upstream commit 9cf1cd8 ] In order to set/get/dump, the tipc uses the generic netlink infrastructure. So, when tipc module is inserted, init function calls genl_register_family(). After genl_register_family(), set/get/dump commands are immediately allowed and these callbacks internally use the net_generic. net_generic is allocated by register_pernet_device() but this is called after genl_register_family() in the __init function. So, these callbacks would use un-initialized net_generic. Test commands: #SHELL1 while : do modprobe tipc modprobe -rv tipc done #SHELL2 while : do tipc link list done Splat looks like: [ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled [ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ torvalds#194 [ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc] [ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00 [ 59.622550][ T2780] NET: Registered protocol family 30 [ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202 [ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907 [ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149 [ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1 [ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40 [ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328 [ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000 [ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.625875][ T2780] tipc: Started in single node mode [ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0 [ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.636478][ T2788] Call Trace: [ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc] [ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0 [ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc] [ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc] [ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380 [ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc] [ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc] [ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270 [ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0 [ 59.643050][ T2788] netlink_dump+0x49c/0xed0 [ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0 [ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800 [ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670 [ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800 [ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90 [ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0 [ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0 [ 59.647821][ T2788] ? genl_unlock+0x20/0x20 [ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0 [ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0 [ 59.649276][ T2788] ? genl_rcv+0x15/0x40 [ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0 [ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350 [ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.651491][ T2788] ? netlink_ack+0x940/0x940 [ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0 [ 59.652449][ T2788] genl_rcv+0x24/0x40 [ 59.652841][ T2788] netlink_unicast+0x421/0x600 [ ... ] Fixes: 7e43690 ("tipc: fix a slab object leak") Fixes: a62fbcc ("tipc: make subscriber server support net namespace") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Noltari
pushed a commit
to Noltari/linux
that referenced
this pull request
Dec 21, 2019
[ Upstream commit 9cf1cd8 ] In order to set/get/dump, the tipc uses the generic netlink infrastructure. So, when tipc module is inserted, init function calls genl_register_family(). After genl_register_family(), set/get/dump commands are immediately allowed and these callbacks internally use the net_generic. net_generic is allocated by register_pernet_device() but this is called after genl_register_family() in the __init function. So, these callbacks would use un-initialized net_generic. Test commands: #SHELL1 while : do modprobe tipc modprobe -rv tipc done #SHELL2 while : do tipc link list done Splat looks like: [ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled [ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ torvalds#194 [ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc] [ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00 [ 59.622550][ T2780] NET: Registered protocol family 30 [ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202 [ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907 [ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149 [ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1 [ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40 [ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328 [ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000 [ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.625875][ T2780] tipc: Started in single node mode [ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0 [ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.636478][ T2788] Call Trace: [ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc] [ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0 [ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc] [ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc] [ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380 [ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc] [ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc] [ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270 [ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0 [ 59.643050][ T2788] netlink_dump+0x49c/0xed0 [ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0 [ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800 [ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670 [ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800 [ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90 [ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0 [ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0 [ 59.647821][ T2788] ? genl_unlock+0x20/0x20 [ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0 [ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0 [ 59.649276][ T2788] ? genl_rcv+0x15/0x40 [ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0 [ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350 [ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.651491][ T2788] ? netlink_ack+0x940/0x940 [ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0 [ 59.652449][ T2788] genl_rcv+0x24/0x40 [ 59.652841][ T2788] netlink_unicast+0x421/0x600 [ ... ] Fixes: 7e43690 ("tipc: fix a slab object leak") Fixes: a62fbcc ("tipc: make subscriber server support net namespace") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Noltari
pushed a commit
to Noltari/linux
that referenced
this pull request
Dec 21, 2019
[ Upstream commit 9cf1cd8 ] In order to set/get/dump, the tipc uses the generic netlink infrastructure. So, when tipc module is inserted, init function calls genl_register_family(). After genl_register_family(), set/get/dump commands are immediately allowed and these callbacks internally use the net_generic. net_generic is allocated by register_pernet_device() but this is called after genl_register_family() in the __init function. So, these callbacks would use un-initialized net_generic. Test commands: #SHELL1 while : do modprobe tipc modprobe -rv tipc done #SHELL2 while : do tipc link list done Splat looks like: [ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled [ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ torvalds#194 [ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc] [ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00 [ 59.622550][ T2780] NET: Registered protocol family 30 [ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202 [ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907 [ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149 [ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1 [ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40 [ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328 [ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000 [ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.625875][ T2780] tipc: Started in single node mode [ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0 [ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.636478][ T2788] Call Trace: [ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc] [ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0 [ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc] [ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc] [ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380 [ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc] [ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc] [ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270 [ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0 [ 59.643050][ T2788] netlink_dump+0x49c/0xed0 [ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0 [ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800 [ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670 [ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800 [ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90 [ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0 [ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0 [ 59.647821][ T2788] ? genl_unlock+0x20/0x20 [ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0 [ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0 [ 59.649276][ T2788] ? genl_rcv+0x15/0x40 [ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0 [ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350 [ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.651491][ T2788] ? netlink_ack+0x940/0x940 [ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0 [ 59.652449][ T2788] genl_rcv+0x24/0x40 [ 59.652841][ T2788] netlink_unicast+0x421/0x600 [ ... ] Fixes: 7e43690 ("tipc: fix a slab object leak") Fixes: a62fbcc ("tipc: make subscriber server support net namespace") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Noltari
pushed a commit
to Noltari/linux
that referenced
this pull request
Dec 21, 2019
[ Upstream commit 9cf1cd8 ] In order to set/get/dump, the tipc uses the generic netlink infrastructure. So, when tipc module is inserted, init function calls genl_register_family(). After genl_register_family(), set/get/dump commands are immediately allowed and these callbacks internally use the net_generic. net_generic is allocated by register_pernet_device() but this is called after genl_register_family() in the __init function. So, these callbacks would use un-initialized net_generic. Test commands: #SHELL1 while : do modprobe tipc modprobe -rv tipc done #SHELL2 while : do tipc link list done Splat looks like: [ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled [ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ torvalds#194 [ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc] [ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00 [ 59.622550][ T2780] NET: Registered protocol family 30 [ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202 [ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907 [ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149 [ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1 [ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40 [ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328 [ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000 [ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.625875][ T2780] tipc: Started in single node mode [ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0 [ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.636478][ T2788] Call Trace: [ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc] [ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0 [ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc] [ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc] [ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380 [ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc] [ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc] [ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270 [ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0 [ 59.643050][ T2788] netlink_dump+0x49c/0xed0 [ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0 [ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800 [ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670 [ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800 [ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90 [ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0 [ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0 [ 59.647821][ T2788] ? genl_unlock+0x20/0x20 [ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0 [ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0 [ 59.649276][ T2788] ? genl_rcv+0x15/0x40 [ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0 [ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350 [ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.651491][ T2788] ? netlink_ack+0x940/0x940 [ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0 [ 59.652449][ T2788] genl_rcv+0x24/0x40 [ 59.652841][ T2788] netlink_unicast+0x421/0x600 [ ... ] Fixes: 7e43690 ("tipc: fix a slab object leak") Fixes: a62fbcc ("tipc: make subscriber server support net namespace") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Noltari
pushed a commit
to Noltari/linux
that referenced
this pull request
Dec 21, 2019
[ Upstream commit 9cf1cd8 ] In order to set/get/dump, the tipc uses the generic netlink infrastructure. So, when tipc module is inserted, init function calls genl_register_family(). After genl_register_family(), set/get/dump commands are immediately allowed and these callbacks internally use the net_generic. net_generic is allocated by register_pernet_device() but this is called after genl_register_family() in the __init function. So, these callbacks would use un-initialized net_generic. Test commands: #SHELL1 while : do modprobe tipc modprobe -rv tipc done #SHELL2 while : do tipc link list done Splat looks like: [ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled [ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ torvalds#194 [ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc] [ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00 [ 59.622550][ T2780] NET: Registered protocol family 30 [ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202 [ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907 [ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149 [ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1 [ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40 [ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328 [ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000 [ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.625875][ T2780] tipc: Started in single node mode [ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0 [ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.636478][ T2788] Call Trace: [ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc] [ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0 [ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc] [ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc] [ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380 [ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc] [ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc] [ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270 [ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0 [ 59.643050][ T2788] netlink_dump+0x49c/0xed0 [ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0 [ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800 [ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670 [ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800 [ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90 [ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0 [ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0 [ 59.647821][ T2788] ? genl_unlock+0x20/0x20 [ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0 [ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0 [ 59.649276][ T2788] ? genl_rcv+0x15/0x40 [ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0 [ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350 [ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.651491][ T2788] ? netlink_ack+0x940/0x940 [ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0 [ 59.652449][ T2788] genl_rcv+0x24/0x40 [ 59.652841][ T2788] netlink_unicast+0x421/0x600 [ ... ] Fixes: 7e43690 ("tipc: fix a slab object leak") Fixes: a62fbcc ("tipc: make subscriber server support net namespace") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
jackpot51
referenced
this pull request
in pop-os/linux
Mar 13, 2020
BugLink: https://bugs.launchpad.net/bugs/1856870 [ Upstream commit 9cf1cd8 ] In order to set/get/dump, the tipc uses the generic netlink infrastructure. So, when tipc module is inserted, init function calls genl_register_family(). After genl_register_family(), set/get/dump commands are immediately allowed and these callbacks internally use the net_generic. net_generic is allocated by register_pernet_device() but this is called after genl_register_family() in the __init function. So, these callbacks would use un-initialized net_generic. Test commands: #SHELL1 while : do modprobe tipc modprobe -rv tipc done #SHELL2 while : do tipc link list done Splat looks like: [ 59.616322][ T2788] kasan: CONFIG_KASAN_INLINE enabled [ 59.617234][ T2788] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 59.618398][ T2788] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 59.619389][ T2788] CPU: 3 PID: 2788 Comm: tipc Not tainted 5.4.0+ #194 [ 59.620231][ T2788] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 59.621428][ T2788] RIP: 0010:tipc_bcast_get_broadcast_mode+0x131/0x310 [tipc] [ 59.622379][ T2788] Code: c7 c6 ef 8b 38 c0 65 ff 0d 84 83 c9 3f e8 d7 a5 f2 e3 48 8d bb 38 11 00 00 48 b8 00 00 00 00 [ 59.622550][ T2780] NET: Registered protocol family 30 [ 59.624627][ T2788] RSP: 0018:ffff88804b09f578 EFLAGS: 00010202 [ 59.624630][ T2788] RAX: dffffc0000000000 RBX: 0000000000000011 RCX: 000000008bc66907 [ 59.624631][ T2788] RDX: 0000000000000229 RSI: 000000004b3cf4cc RDI: 0000000000001149 [ 59.624633][ T2788] RBP: ffff88804b09f588 R08: 0000000000000003 R09: fffffbfff4fb3df1 [ 59.624635][ T2788] R10: fffffbfff50318f8 R11: ffff888066cadc18 R12: ffffffffa6cc2f40 [ 59.624637][ T2788] R13: 1ffff11009613eba R14: ffff8880662e9328 R15: ffff8880662e9328 [ 59.624639][ T2788] FS: 00007f57d8f7b740(0000) GS:ffff88806cc00000(0000) knlGS:0000000000000000 [ 59.624645][ T2788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.625875][ T2780] tipc: Started in single node mode [ 59.626128][ T2788] CR2: 00007f57d887a8c0 CR3: 000000004b140002 CR4: 00000000000606e0 [ 59.633991][ T2788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.635195][ T2788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.636478][ T2788] Call Trace: [ 59.637025][ T2788] tipc_nl_add_bc_link+0x179/0x1470 [tipc] [ 59.638219][ T2788] ? lock_downgrade+0x6e0/0x6e0 [ 59.638923][ T2788] ? __tipc_nl_add_link+0xf90/0xf90 [tipc] [ 59.639533][ T2788] ? tipc_nl_node_dump_link+0x318/0xa50 [tipc] [ 59.640160][ T2788] ? mutex_lock_io_nested+0x1380/0x1380 [ 59.640746][ T2788] tipc_nl_node_dump_link+0x4fd/0xa50 [tipc] [ 59.641356][ T2788] ? tipc_nl_node_reset_link_stats+0x340/0x340 [tipc] [ 59.642088][ T2788] ? __skb_ext_del+0x270/0x270 [ 59.642594][ T2788] genl_lock_dumpit+0x85/0xb0 [ 59.643050][ T2788] netlink_dump+0x49c/0xed0 [ 59.643529][ T2788] ? __netlink_sendskb+0xc0/0xc0 [ 59.644044][ T2788] ? __netlink_dump_start+0x190/0x800 [ 59.644617][ T2788] ? __mutex_unlock_slowpath+0xd0/0x670 [ 59.645177][ T2788] __netlink_dump_start+0x5a0/0x800 [ 59.645692][ T2788] genl_rcv_msg+0xa75/0xe90 [ 59.646144][ T2788] ? __lock_acquire+0xdfe/0x3de0 [ 59.646692][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.647340][ T2788] ? genl_lock_dumpit+0xb0/0xb0 [ 59.647821][ T2788] ? genl_unlock+0x20/0x20 [ 59.648290][ T2788] ? genl_parallel_done+0xe0/0xe0 [ 59.648787][ T2788] ? find_held_lock+0x39/0x1d0 [ 59.649276][ T2788] ? genl_rcv+0x15/0x40 [ 59.649722][ T2788] ? lock_contended+0xcd0/0xcd0 [ 59.650296][ T2788] netlink_rcv_skb+0x121/0x350 [ 59.650828][ T2788] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.651491][ T2788] ? netlink_ack+0x940/0x940 [ 59.651953][ T2788] ? lock_acquire+0x164/0x3b0 [ 59.652449][ T2788] genl_rcv+0x24/0x40 [ 59.652841][ T2788] netlink_unicast+0x421/0x600 [ ... ] Fixes: 7e43690 ("tipc: fix a slab object leak") Fixes: a62fbcc ("tipc: make subscriber server support net namespace") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Connor Kuehl <connor.kuehl@canonical.com> Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
otavio
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to OSSystems/linux
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Jan 22, 2021
Update 5.4.x+fslc to v5.4.84
chombourger
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to chombourger/linux
that referenced
this pull request
Feb 16, 2021
…from PLSDK-3020 to processor-sdk-linux-4.19.y * commit '4e72a010487d470c7e6ad9c90e5e18e0266e851e': arm64: dts: ti: k3-am654-idk : add pinmux for col signal to ICSSG0 slice 1 net: ti: icssg_prueth: use 10M half duplex as default net: ti: icssg_prueth: Add 10M Full/Half Duplex and 100M Half Duplex net: ti: icssg_prueth: Fix argument passed to icssg_update_rgmii_cfg()
TheSven73
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to TheSven73/linux
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Apr 14, 2021
Avoid `-n1` with `-I`
joe-lawrence
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Oct 28, 2021
Note: squash with ("livepatch/selftests: add klp-convert")
Fix the following checkpatch warnings:
WARNING: externs should be avoided in .c files
torvalds#66: FILE: lib/livepatch/test_klp_convert1.c:13:
+extern char driver_name[];
WARNING: externs should be avoided in .c files
torvalds#67: FILE: lib/livepatch/test_klp_convert1.c:14:
+extern char homonym_string[];
WARNING: externs should be avoided in .c files
torvalds#68: FILE: lib/livepatch/test_klp_convert1.c:15:
+extern const char *get_homonym_string(void);
WARNING: externs should be avoided in .c files
torvalds#69: FILE: lib/livepatch/test_klp_convert1.c:16:
+extern const char *test_klp_get_driver_name(void);
WARNING: externs should be avoided in .c files
torvalds#191: FILE: lib/livepatch/test_klp_convert2.c:13:
+extern char driver_name[];
WARNING: externs should be avoided in .c files
torvalds#192: FILE: lib/livepatch/test_klp_convert2.c:14:
+extern char homonym_string[];
WARNING: externs should be avoided in .c files
torvalds#193: FILE: lib/livepatch/test_klp_convert2.c:15:
+extern const char *get_homonym_string(void);
WARNING: externs should be avoided in .c files
torvalds#194: FILE: lib/livepatch/test_klp_convert2.c:16:
+extern const char *test_klp_get_driver_name(void);
WARNING: externs should be avoided in .c files
torvalds#30: FILE: lib/livepatch/test_klp_convert1.c:18:
+extern char klp_string_a[] __asm__("klp_string.12345");
WARNING: externs should be avoided in .c files
torvalds#31: FILE: lib/livepatch/test_klp_convert1.c:19:
+extern char klp_string_b[] __asm__("klp_string.67890");
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
chleroy
pushed a commit
to chleroy/linux
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Dec 14, 2021
Note: squash with ("livepatch/selftests: add klp-convert")
Fix the following checkpatch warnings:
WARNING: externs should be avoided in .c files
torvalds#66: FILE: lib/livepatch/test_klp_convert1.c:13:
+extern char driver_name[];
WARNING: externs should be avoided in .c files
torvalds#67: FILE: lib/livepatch/test_klp_convert1.c:14:
+extern char homonym_string[];
WARNING: externs should be avoided in .c files
torvalds#68: FILE: lib/livepatch/test_klp_convert1.c:15:
+extern const char *get_homonym_string(void);
WARNING: externs should be avoided in .c files
torvalds#69: FILE: lib/livepatch/test_klp_convert1.c:16:
+extern const char *test_klp_get_driver_name(void);
WARNING: externs should be avoided in .c files
torvalds#191: FILE: lib/livepatch/test_klp_convert2.c:13:
+extern char driver_name[];
WARNING: externs should be avoided in .c files
torvalds#192: FILE: lib/livepatch/test_klp_convert2.c:14:
+extern char homonym_string[];
WARNING: externs should be avoided in .c files
torvalds#193: FILE: lib/livepatch/test_klp_convert2.c:15:
+extern const char *get_homonym_string(void);
WARNING: externs should be avoided in .c files
torvalds#194: FILE: lib/livepatch/test_klp_convert2.c:16:
+extern const char *test_klp_get_driver_name(void);
WARNING: externs should be avoided in .c files
torvalds#30: FILE: lib/livepatch/test_klp_convert1.c:18:
+extern char klp_string_a[] __asm__("klp_string.12345");
WARNING: externs should be avoided in .c files
torvalds#31: FILE: lib/livepatch/test_klp_convert1.c:19:
+extern char klp_string_b[] __asm__("klp_string.67890");
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
RadxaStephen
added a commit
to RadxaStephen/linux
that referenced
this pull request
Mar 6, 2024
Changes: * Radxa CM3 IO: add PWM fan * Radxa CM3 IO: add RTC device Signed-off-by: Stephen Chen <stephen@radxa.com>
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