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staticd: Tell bfd that we are shutting down
Prevent a use after free and tell the bfd subsystem we are shutting down in staticd. ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460:==2264460==ERROR: AddressSanitizer: heap-use-after-free on address 0x61f000004698 at pc 0x7f65d1eb11b2 bp 0x7ffdbface490 sp 0x7ffdbface488 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460-READ of size 4 at 0x61f000004698 thread T0 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- #0 0x7f65d1eb11b1 in zclient_bfd_command lib/bfd.c:307 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- #1 0x7f65d1eb20f5 in _bfd_sess_send lib/bfd.c:507 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- #2 0x7f65d20510aa in thread_call lib/thread.c:1989 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- #3 0x7f65d2051f0a in _thread_execute lib/thread.c:2081 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- FRRouting#4 0x7f65d1eb271b in _bfd_sess_remove lib/bfd.c:544 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- FRRouting#5 0x7f65d1eb278d in bfd_sess_free lib/bfd.c:553 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- FRRouting#6 0x7f65d1eb5400 in bfd_protocol_integration_finish lib/bfd.c:1029 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- FRRouting#7 0x7f65d1f42f77 in hook_call_frr_fini lib/libfrr.c:41 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- FRRouting#8 0x7f65d1f494a1 in frr_fini lib/libfrr.c:1199 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- FRRouting#9 0x563b7abefd76 in sigint staticd/static_main.c:70 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- FRRouting#10 0x7f65d200ef91 in frr_sigevent_process lib/sigevent.c:115 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- FRRouting#11 0x7f65d204fac6 in thread_fetch lib/thread.c:1758 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- FRRouting#12 0x7f65d1f49377 in frr_run lib/libfrr.c:1184 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- FRRouting#13 0x563b7abefed1 in main staticd/static_main.c:160 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- FRRouting#14 0x7f65d1b92d09 in __libc_start_main ../csu/libc-start.c:308 ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- FRRouting#15 0x563b7abefa99 in _start (/usr/lib/frr/staticd+0x15a99) ./bfd_topo3.test_bfd_topo3/r4.staticd.asan.2264460- Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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