Merge tag 'v6.6.41' into rpi-6.6.41-alpine

This is the 6.6.41 stable release

Documentation/admin-guide/cifs/usage.rst

@@ -722,40 +722,26 @@ Configuration pseudo-files:
 ======================= =======================================================
 SecurityFlags		Flags which control security negotiation and
 			also packet signing. Authentication (may/must)
-			flags (e.g. for NTLM and/or NTLMv2) may be combined with
+			flags (e.g. for NTLMv2) may be combined with
 			the signing flags.  Specifying two different password
 			hashing mechanisms (as "must use") on the other hand
 			does not make much sense. Default flags are::
 
-				0x07007
-
-			(NTLM, NTLMv2 and packet signing allowed).  The maximum
-			allowable flags if you want to allow mounts to servers
-			using weaker password hashes is 0x37037 (lanman,
-			plaintext, ntlm, ntlmv2, signing allowed).  Some
-			SecurityFlags require the corresponding menuconfig
-			options to be enabled.  Enabling plaintext
-			authentication currently requires also enabling
-			lanman authentication in the security flags
-			because the cifs module only supports sending
-			laintext passwords using the older lanman dialect
-			form of the session setup SMB.  (e.g. for authentication
-			using plain text passwords, set the SecurityFlags
-			to 0x30030)::
+				0x00C5
+
+			(NTLMv2 and packet signing allowed).  Some SecurityFlags
+			may require enabling a corresponding menuconfig option.
 
 			  may use packet signing			0x00001
 			  must use packet signing			0x01001
-			  may use NTLM (most common password hash)	0x00002
-			  must use NTLM					0x02002
 			  may use NTLMv2				0x00004
 			  must use NTLMv2				0x04004
-			  may use Kerberos security			0x00008
-			  must use Kerberos				0x08008
-			  may use lanman (weak) password hash		0x00010
-			  must use lanman password hash			0x10010
-			  may use plaintext passwords			0x00020
-			  must use plaintext passwords			0x20020
-			  (reserved for future packet encryption)	0x00040
+			  may use Kerberos security (krb5)		0x00008
+			  must use Kerberos                             0x08008
+			  may use NTLMSSP               		0x00080
+			  must use NTLMSSP           			0x80080
+			  seal (packet encryption)			0x00040
+			  must seal (not implemented yet)               0x40040
 
 cifsFYI			If set to non-zero value, additional debug information
 			will be logged to the system error log.  This field

Makefile

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 6
 PATCHLEVEL = 6
-SUBLEVEL = 40
+SUBLEVEL = 41
 EXTRAVERSION =
 NAME = Hurr durr I'ma ninja sloth
 

arch/arm/mach-davinci/pm.c

@@ -61,7 +61,7 @@ static void davinci_pm_suspend(void)
 
 	/* Configure sleep count in deep sleep register */
 	val = __raw_readl(pm_config.deepsleep_reg);
-	val &= ~DEEPSLEEP_SLEEPCOUNT_MASK,
+	val &= ~DEEPSLEEP_SLEEPCOUNT_MASK;
 	val |= pm_config.sleepcount;
 	__raw_writel(val, pm_config.deepsleep_reg);
 

arch/arm64/boot/dts/qcom/sa8775p.dtsi

@@ -2398,7 +2398,7 @@
 		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
-			     <GIC_PPI 12 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>;
+			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>;
 	};
 
 	pcie0: pci@1c00000{

arch/arm64/boot/dts/qcom/sc8180x.dtsi

@@ -2551,11 +2551,14 @@
 
 		system-cache-controller@9200000 {
 			compatible = "qcom,sc8180x-llcc";
-			reg = <0 0x09200000 0 0x50000>, <0 0x09280000 0 0x50000>,
-			      <0 0x09300000 0 0x50000>, <0 0x09380000 0 0x50000>,
-			      <0 0x09600000 0 0x50000>;
+			reg = <0 0x09200000 0 0x58000>, <0 0x09280000 0 0x58000>,
+			      <0 0x09300000 0 0x58000>, <0 0x09380000 0 0x58000>,
+			      <0 0x09400000 0 0x58000>, <0 0x09480000 0 0x58000>,
+			      <0 0x09500000 0 0x58000>, <0 0x09580000 0 0x58000>,
+			      <0 0x09600000 0 0x58000>;
 			reg-names = "llcc0_base", "llcc1_base", "llcc2_base",
-				    "llcc3_base", "llcc_broadcast_base";
+				    "llcc3_base", "llcc4_base", "llcc5_base",
+				    "llcc6_base", "llcc7_base",  "llcc_broadcast_base";
 			interrupts = <GIC_SPI 582 IRQ_TYPE_LEVEL_HIGH>;
 		};
 

arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts

@@ -619,15 +619,16 @@
 
 	status = "okay";
 
-	/* FIXME: verify */
 	touchscreen@10 {
-		compatible = "hid-over-i2c";
+		compatible = "elan,ekth5015m", "elan,ekth6915";
 		reg = <0x10>;
 
-		hid-descr-addr = <0x1>;
 		interrupts-extended = <&tlmm 175 IRQ_TYPE_LEVEL_LOW>;
-		vdd-supply = <&vreg_misc_3p3>;
-		vddl-supply = <&vreg_s10b>;
+		reset-gpios = <&tlmm 99 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>;
+		no-reset-on-power-off;
+
+		vcc33-supply = <&vreg_misc_3p3>;
+		vccio-supply = <&vreg_misc_3p3>;
 
 		pinctrl-names = "default";
 		pinctrl-0 = <&ts0_default>;
@@ -1451,8 +1452,8 @@
 		reset-n-pins {
 			pins = "gpio99";
 			function = "gpio";
-			output-high;
-			drive-strength = <16>;
+			drive-strength = <2>;
+			bias-disable;
 		};
 	};
 

arch/s390/include/asm/processor.h

@@ -308,8 +308,8 @@ static inline void __load_psw(psw_t psw)
  */
 static __always_inline void __load_psw_mask(unsigned long mask)
 {
+	psw_t psw __uninitialized;
 	unsigned long addr;
-	psw_t psw;
 
 	psw.mask = mask;
 

arch/s390/mm/pgalloc.c

@@ -53,6 +53,8 @@ unsigned long *crst_table_alloc(struct mm_struct *mm)
 
 void crst_table_free(struct mm_struct *mm, unsigned long *table)
 {
+	if (!table)
+		return;
 	pagetable_free(virt_to_ptdesc(table));
 }
 
@@ -500,6 +502,8 @@ static unsigned long *base_crst_alloc(unsigned long val)
 
 static void base_crst_free(unsigned long *table)
 {
+	if (!table)
+		return;
 	pagetable_free(virt_to_ptdesc(table));
 }
 

arch/x86/entry/entry_64.S

@@ -167,22 +167,9 @@ SYM_INNER_LABEL(entry_SYSCALL_64_after_hwframe, SYM_L_GLOBAL)
 	jne	swapgs_restore_regs_and_return_to_usermode
 
 	/*
-	 * SYSCALL clears RF when it saves RFLAGS in R11 and SYSRET cannot
-	 * restore RF properly. If the slowpath sets it for whatever reason, we
-	 * need to restore it correctly.
-	 *
-	 * SYSRET can restore TF, but unlike IRET, restoring TF results in a
-	 * trap from userspace immediately after SYSRET.  This would cause an
-	 * infinite loop whenever #DB happens with register state that satisfies
-	 * the opportunistic SYSRET conditions.  For example, single-stepping
-	 * this user code:
-	 *
-	 *           movq	$stuck_here, %rcx
-	 *           pushfq
-	 *           popq %r11
-	 *   stuck_here:
-	 *
-	 * would never get past 'stuck_here'.
+	 * SYSRET cannot restore RF.  It can restore TF, but unlike IRET,
+	 * restoring TF results in a trap from userspace immediately after
+	 * SYSRET.
 	 */
 	testq	$(X86_EFLAGS_RF|X86_EFLAGS_TF), %r11
 	jnz	swapgs_restore_regs_and_return_to_usermode
@@ -1527,13 +1514,13 @@ SYM_CODE_END(asm_exc_nmi)
  * This handles SYSCALL from 32-bit code.  There is no way to program
  * MSRs to fully disable 32-bit SYSCALL.
  */
-SYM_CODE_START(ignore_sysret)
+SYM_CODE_START(entry_SYSCALL32_ignore)
 	UNWIND_HINT_END_OF_STACK
 	ENDBR
 	mov	$-ENOSYS, %eax
 	CLEAR_CPU_BUFFERS
 	sysretl
-SYM_CODE_END(ignore_sysret)
+SYM_CODE_END(entry_SYSCALL32_ignore)
 #endif
 
 .pushsection .text, "ax"

arch/x86/entry/entry_64_compat.S

@@ -90,10 +90,6 @@ SYM_INNER_LABEL(entry_SYSENTER_compat_after_hwframe, SYM_L_GLOBAL)
 
 	cld
 
-	IBRS_ENTER
-	UNTRAIN_RET
-	CLEAR_BRANCH_HISTORY
-
 	/*
 	 * SYSENTER doesn't filter flags, so we need to clear NT and AC
 	 * ourselves.  To save a few cycles, we can check whether
@@ -117,6 +113,16 @@ SYM_INNER_LABEL(entry_SYSENTER_compat_after_hwframe, SYM_L_GLOBAL)
 	jnz	.Lsysenter_fix_flags
 .Lsysenter_flags_fixed:
 
+	/*
+	 * CPU bugs mitigations mechanisms can call other functions. They
+	 * should be invoked after making sure TF is cleared because
+	 * single-step is ignored only for instructions inside the
+	 * entry_SYSENTER_compat function.
+	 */
+	IBRS_ENTER
+	UNTRAIN_RET
+	CLEAR_BRANCH_HISTORY
+
 	movq	%rsp, %rdi
 	call	do_SYSENTER_32
 	/* XEN PV guests always use IRET path */

arch/x86/include/asm/processor.h

@@ -399,7 +399,7 @@ static inline unsigned long cpu_kernelmode_gs_base(int cpu)
 	return (unsigned long)per_cpu(fixed_percpu_data.gs_base, cpu);
 }
 
-extern asmlinkage void ignore_sysret(void);
+extern asmlinkage void entry_SYSCALL32_ignore(void);
 
 /* Save actual FS/GS selectors and bases to current->thread */
 void current_save_fsgs(void);

arch/x86/kernel/cpu/common.c

@@ -2134,7 +2134,7 @@ void syscall_init(void)
 		    (unsigned long)(cpu_entry_stack(smp_processor_id()) + 1));
 	wrmsrl_safe(MSR_IA32_SYSENTER_EIP, (u64)entry_SYSENTER_compat);
 #else
-	wrmsrl_cstar((unsigned long)ignore_sysret);
+	wrmsrl_cstar((unsigned long)entry_SYSCALL32_ignore);
 	wrmsrl_safe(MSR_IA32_SYSENTER_CS, (u64)GDT_ENTRY_INVALID_SEG);
 	wrmsrl_safe(MSR_IA32_SYSENTER_ESP, 0ULL);
 	wrmsrl_safe(MSR_IA32_SYSENTER_EIP, 0ULL);

drivers/acpi/processor_idle.c

@@ -16,7 +16,6 @@
 #include <linux/acpi.h>
 #include <linux/dmi.h>
 #include <linux/sched.h>       /* need_resched() */
-#include <linux/sort.h>
 #include <linux/tick.h>
 #include <linux/cpuidle.h>
 #include <linux/cpu.h>
@@ -386,25 +385,24 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
 	acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_RLD, 1);
 }
 
-static int acpi_cst_latency_cmp(const void *a, const void *b)
+static void acpi_cst_latency_sort(struct acpi_processor_cx *states, size_t length)
 {
-	const struct acpi_processor_cx *x = a, *y = b;
+	int i, j, k;
 
-	if (!(x->valid && y->valid))
-		return 0;
-	if (x->latency > y->latency)
-		return 1;
-	if (x->latency < y->latency)
-		return -1;
-	return 0;
-}
-static void acpi_cst_latency_swap(void *a, void *b, int n)
-{
-	struct acpi_processor_cx *x = a, *y = b;
+	for (i = 1; i < length; i++) {
+		if (!states[i].valid)
+			continue;
 
-	if (!(x->valid && y->valid))
-		return;
-	swap(x->latency, y->latency);
+		for (j = i - 1, k = i; j >= 0; j--) {
+			if (!states[j].valid)
+				continue;
+
+			if (states[j].latency > states[k].latency)
+				swap(states[j].latency, states[k].latency);
+
+			k = j;
+		}
+	}
 }
 
 static int acpi_processor_power_verify(struct acpi_processor *pr)
@@ -449,10 +447,7 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
 
 	if (buggy_latency) {
 		pr_notice("FW issue: working around C-state latencies out of order\n");
-		sort(&pr->power.states[1], max_cstate,
-		     sizeof(struct acpi_processor_cx),
-		     acpi_cst_latency_cmp,
-		     acpi_cst_latency_swap);
+		acpi_cst_latency_sort(&pr->power.states[1], max_cstate);
 	}
 
 	lapic_timer_propagate_broadcast(pr);

drivers/char/hpet.c

@@ -289,8 +289,13 @@ hpet_read(struct file *file, char __user *buf, size_t count, loff_t * ppos)
 	if (!devp->hd_ireqfreq)
 		return -EIO;
 
-	if (count < sizeof(unsigned long))
-		return -EINVAL;
+	if (in_compat_syscall()) {
+		if (count < sizeof(compat_ulong_t))
+			return -EINVAL;
+	} else {
+		if (count < sizeof(unsigned long))
+			return -EINVAL;
+	}
 
 	add_wait_queue(&devp->hd_waitqueue, &wait);
 
@@ -314,9 +319,16 @@ hpet_read(struct file *file, char __user *buf, size_t count, loff_t * ppos)
 		schedule();
 	}
 
-	retval = put_user(data, (unsigned long __user *)buf);
-	if (!retval)
-		retval = sizeof(unsigned long);
+	if (in_compat_syscall()) {
+		retval = put_user(data, (compat_ulong_t __user *)buf);
+		if (!retval)
+			retval = sizeof(compat_ulong_t);
+	} else {
+		retval = put_user(data, (unsigned long __user *)buf);
+		if (!retval)
+			retval = sizeof(unsigned long);
+	}
+
 out:
 	__set_current_state(TASK_RUNNING);
 	remove_wait_queue(&devp->hd_waitqueue, &wait);
@@ -671,12 +683,24 @@ struct compat_hpet_info {
 	unsigned short hi_timer;
 };
 
+/* 32-bit types would lead to different command codes which should be
+ * translated into 64-bit ones before passed to hpet_ioctl_common
+ */
+#define COMPAT_HPET_INFO       _IOR('h', 0x03, struct compat_hpet_info)
+#define COMPAT_HPET_IRQFREQ    _IOW('h', 0x6, compat_ulong_t)
+
 static long
 hpet_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	struct hpet_info info;
 	int err;
 
+	if (cmd == COMPAT_HPET_INFO)
+		cmd = HPET_INFO;
+
+	if (cmd == COMPAT_HPET_IRQFREQ)
+		cmd = HPET_IRQFREQ;
+
 	mutex_lock(&hpet_mutex);
 	err = hpet_ioctl_common(file->private_data, cmd, arg, &info);
 	mutex_unlock(&hpet_mutex);

drivers/cpufreq/acpi-cpufreq.c

@@ -890,8 +890,10 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	if (perf->states[0].core_frequency * 1000 != freq_table[0].frequency)
 		pr_warn(FW_WARN "P-state 0 is not max freq\n");
 
-	if (acpi_cpufreq_driver.set_boost)
+	if (acpi_cpufreq_driver.set_boost) {
 		set_boost(policy, acpi_cpufreq_driver.boost_enabled);
+		policy->boost_enabled = acpi_cpufreq_driver.boost_enabled;
+	}
 
 	return result;
 

drivers/cpufreq/cpufreq.c

@@ -1422,7 +1422,8 @@ static int cpufreq_online(unsigned int cpu)
 		}
 
 		/* Let the per-policy boost flag mirror the cpufreq_driver boost during init */
-		policy->boost_enabled = cpufreq_boost_enabled() && policy_has_boost_freq(policy);
+		if (cpufreq_boost_enabled() && policy_has_boost_freq(policy))
+			policy->boost_enabled = true;
 
 		/*
 		 * The initialization has succeeded and the policy is online.