{"id":"CVE-2023-54045","state":"PUBLISHED","title":"audit: fix possible soft lockup in __audit_inode_child()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\naudit: fix possible soft lockup in __audit_inode_child()\n\nTracefs or debugfs maybe cause hundreds to thousands of PATH records,\ntoo many PATH records maybe cause soft lockup.\n\nFor example:\n  1. CONFIG_KASAN=y && CONFIG_PREEMPTION=n\n  2. auditctl -a exit,always -S open -k key\n  3. sysctl -w kernel.watchdog_thresh=5\n  4. mkdir /sys/kernel/debug/tracing/instances/test\n\nThere may be a soft lockup as follows:\n  watchdog: BUG: soft lockup - CPU#45 stuck for 7s! [mkdir:15498]\n  Kernel panic - not syncing: softlockup: hung tasks\n  Call trace:\n   dump_backtrace+0x0/0x30c\n   show_stack+0x20/0x30\n   dump_stack+0x11c/0x174\n   panic+0x27c/0x494\n   watchdog_timer_fn+0x2bc/0x390\n   __run_hrtimer+0x148/0x4fc\n   __hrtimer_run_queues+0x154/0x210\n   hrtimer_interrupt+0x2c4/0x760\n   arch_timer_handler_phys+0x48/0x60\n   handle_percpu_devid_irq+0xe0/0x340\n   __handle_domain_irq+0xbc/0x130\n   gic_handle_irq+0x78/0x460\n   el1_irq+0xb8/0x140\n   __audit_inode_child+0x240/0x7bc\n   tracefs_create_file+0x1b8/0x2a0\n   trace_create_file+0x18/0x50\n   event_create_dir+0x204/0x30c\n   __trace_add_new_event+0xac/0x100\n   event_trace_add_tracer+0xa0/0x130\n   trace_array_create_dir+0x60/0x140\n   trace_array_create+0x1e0/0x370\n   instance_mkdir+0x90/0xd0\n   tracefs_syscall_mkdir+0x68/0xa0\n   vfs_mkdir+0x21c/0x34c\n   do_mkdirat+0x1b4/0x1d4\n   __arm64_sys_mkdirat+0x4c/0x60\n   el0_svc_common.constprop.0+0xa8/0x240\n   do_el0_svc+0x8c/0xc0\n   el0_svc+0x20/0x30\n   el0_sync_handler+0xb0/0xb4\n   el0_sync+0x160/0x180\n\nTherefore, we add cond_resched() to __audit_inode_child() to fix it.","publishedAt":"2025-12-24T12:22:56.742Z","updatedAt":"2026-05-11T19:54:27.312Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"d061e2bfc20f2914656385816e0d20566213c54c","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"1640c7bd4eddec6c72f3a99cbb74e333a2ce9f5d","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"f6364fa751d7486502c777f124a14d4d543fc5eb","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"98ef243d5900d75a64539a2165745bffbb155d43","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"0152e7758cc4e9f8bfba8dbea4438d8e488d6c08","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"9ca08adb75fb40a8f742c371927ee73f9dc753bf","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"8a40b491372966ba5426e138a53460985565d5a6","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"8e76b944a7b9bddef190ffe2e29c9ae342ab91ed","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"b59bc6e37237e37eadf50cd5de369e913f524463","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/auditsc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.3","versionType":"semver"},{"version":"4.14.326","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.295","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.257","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.195","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.132","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.53","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.4.16","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5.3","status":"unaffected","lessThanOrEqual":"6.5.*","versionType":"semver"},{"version":"6.6","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/auditsc.c"]}],"references":["https://git.kernel.org/stable/c/d061e2bfc20f2914656385816e0d20566213c54c","https://git.kernel.org/stable/c/1640c7bd4eddec6c72f3a99cbb74e333a2ce9f5d","https://git.kernel.org/stable/c/f6364fa751d7486502c777f124a14d4d543fc5eb","https://git.kernel.org/stable/c/98ef243d5900d75a64539a2165745bffbb155d43","https://git.kernel.org/stable/c/0152e7758cc4e9f8bfba8dbea4438d8e488d6c08","https://git.kernel.org/stable/c/9ca08adb75fb40a8f742c371927ee73f9dc753bf","https://git.kernel.org/stable/c/8a40b491372966ba5426e138a53460985565d5a6","https://git.kernel.org/stable/c/8e76b944a7b9bddef190ffe2e29c9ae342ab91ed","https://git.kernel.org/stable/c/b59bc6e37237e37eadf50cd5de369e913f524463"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:42.242Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/54xxx/CVE-2023-54045.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-54045","state":"PUBLISHED","datePublished":"2025-12-24T12:22:56.742Z","dateUpdated":"2026-05-11T19:54:27.312Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-24T10:53:46.182Z"},"containers":{"cna":{"title":"audit: fix possible soft lockup in __audit_inode_child()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\naudit: fix possible soft lockup in __audit_inode_child()\n\nTracefs or debugfs maybe cause hundreds to thousands of PATH records,\ntoo many PATH records maybe cause soft lockup.\n\nFor example:\n  1. CONFIG_KASAN=y && CONFIG_PREEMPTION=n\n  2. auditctl -a exit,always -S open -k key\n  3. sysctl -w kernel.watchdog_thresh=5\n  4. mkdir /sys/kernel/debug/tracing/instances/test\n\nThere may be a soft lockup as follows:\n  watchdog: BUG: soft lockup - CPU#45 stuck for 7s! [mkdir:15498]\n  Kernel panic - not syncing: softlockup: hung tasks\n  Call trace:\n   dump_backtrace+0x0/0x30c\n   show_stack+0x20/0x30\n   dump_stack+0x11c/0x174\n   panic+0x27c/0x494\n   watchdog_timer_fn+0x2bc/0x390\n   __run_hrtimer+0x148/0x4fc\n   __hrtimer_run_queues+0x154/0x210\n   hrtimer_interrupt+0x2c4/0x760\n   arch_timer_handler_phys+0x48/0x60\n   handle_percpu_devid_irq+0xe0/0x340\n   __handle_domain_irq+0xbc/0x130\n   gic_handle_irq+0x78/0x460\n   el1_irq+0xb8/0x140\n   __audit_inode_child+0x240/0x7bc\n   tracefs_create_file+0x1b8/0x2a0\n   trace_create_file+0x18/0x50\n   event_create_dir+0x204/0x30c\n   __trace_add_new_event+0xac/0x100\n   event_trace_add_tracer+0xa0/0x130\n   trace_array_create_dir+0x60/0x140\n   trace_array_create+0x1e0/0x370\n   instance_mkdir+0x90/0xd0\n   tracefs_syscall_mkdir+0x68/0xa0\n   vfs_mkdir+0x21c/0x34c\n   do_mkdirat+0x1b4/0x1d4\n   __arm64_sys_mkdirat+0x4c/0x60\n   el0_svc_common.constprop.0+0xa8/0x240\n   do_el0_svc+0x8c/0xc0\n   el0_svc+0x20/0x30\n   el0_sync_handler+0xb0/0xb4\n   el0_sync+0x160/0x180\n\nTherefore, we add cond_resched() to __audit_inode_child() to fix it."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"d061e2bfc20f2914656385816e0d20566213c54c","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"1640c7bd4eddec6c72f3a99cbb74e333a2ce9f5d","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"f6364fa751d7486502c777f124a14d4d543fc5eb","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"98ef243d5900d75a64539a2165745bffbb155d43","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"0152e7758cc4e9f8bfba8dbea4438d8e488d6c08","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"9ca08adb75fb40a8f742c371927ee73f9dc753bf","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"8a40b491372966ba5426e138a53460985565d5a6","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"8e76b944a7b9bddef190ffe2e29c9ae342ab91ed","versionType":"git"},{"version":"5195d8e217a78697152d64fc09a16e063a022465","status":"affected","lessThan":"b59bc6e37237e37eadf50cd5de369e913f524463","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/auditsc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.3","versionType":"semver"},{"version":"4.14.326","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.295","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.257","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.195","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.132","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.53","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.4.16","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5.3","status":"unaffected","lessThanOrEqual":"6.5.*","versionType":"semver"},{"version":"6.6","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/auditsc.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/d061e2bfc20f2914656385816e0d20566213c54c"},{"url":"https://git.kernel.org/stable/c/1640c7bd4eddec6c72f3a99cbb74e333a2ce9f5d"},{"url":"https://git.kernel.org/stable/c/f6364fa751d7486502c777f124a14d4d543fc5eb"},{"url":"https://git.kernel.org/stable/c/98ef243d5900d75a64539a2165745bffbb155d43"},{"url":"https://git.kernel.org/stable/c/0152e7758cc4e9f8bfba8dbea4438d8e488d6c08"},{"url":"https://git.kernel.org/stable/c/9ca08adb75fb40a8f742c371927ee73f9dc753bf"},{"url":"https://git.kernel.org/stable/c/8a40b491372966ba5426e138a53460985565d5a6"},{"url":"https://git.kernel.org/stable/c/8e76b944a7b9bddef190ffe2e29c9ae342ab91ed"},{"url":"https://git.kernel.org/stable/c/b59bc6e37237e37eadf50cd5de369e913f524463"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:54:27.312Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"4.14.326"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"4.19.295"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"5.4.257"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"5.10.195"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"5.15.132"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"6.1.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"6.4.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"6.5.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"6.6"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}