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Vulnerability · Published Dec 24, 2025 · Assigned by Linux

CVE-2023-54045audit: fix possible soft lockup in __audit_inode_child()

Unrated

In plain English

A security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.3%top 79.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: audit: fix possible soft lockup in __audit_inode_child() Tracefs or debugfs maybe cause hundreds to thousands of PATH records, too many PATH records maybe cause soft lockup. For example: 1. CONFIG_KASAN=y && CONFIG_PREEMPTION=n 2. auditctl -a exit,always -S open -k key 3. sysctl -w kernel.watchdog_thresh=5 4. mkdir /sys/kernel/debug/tracing/instances/test There may be a soft lockup as follows: watchdog: BUG: soft lockup - CPU#45 stuck for 7s! [mkdir:15498] Kernel panic - not syncing: softlockup: hung tasks Call trace: dump_backtrace+0x0/0x30c show_stack+0x20/0x30 dump_stack+0x11c/0x174 panic+0x27c/0x494 watchdog_timer_fn+0x2bc/0x390 __run_hrtimer+0x148/0x4fc __hrtimer_run_queues+0x154/0x210 hrtimer_interrupt+0x2c4/0x760 arch_timer_handler_phys+0x48/0x60 handle_percpu_devid_irq+0xe0/0x340 __handle_domain_irq+0xbc/0x130 gic_handle_irq+0x78/0x460 el1_irq+0xb8/0x140 __audit_inode_child+0x240/0x7bc tracefs_create_file+0x1b8/0x2a0 trace_create_file+0x18/0x50 event_create_dir+0x204/0x30c __trace_add_new_event+0xac/0x100 event_trace_add_tracer+0xa0/0x130 trace_array_create_dir+0x60/0x140 trace_array_create+0x1e0/0x370 instance_mkdir+0x90/0xd0 tracefs_syscall_mkdir+0x68/0xa0 vfs_mkdir+0x21c/0x34c do_mkdirat+0x1b4/0x1d4 __arm64_sys_mkdirat+0x4c/0x60 el0_svc_common.constprop.0+0xa8/0x240 do_el0_svc+0x8c/0xc0 el0_svc+0x20/0x30 el0_sync_handler+0xb0/0xb4 el0_sync+0x160/0x180 Therefore, we add cond_resched() to __audit_inode_child() to fix it.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.55-1DEBIAN-CVE-2023-54045
Debian:13linux6.5.3-1DEBIAN-CVE-2023-54045
Debian:14linux6.5.3-1DEBIAN-CVE-2023-54045
Ubuntu:22.04:LTSlinux5.15.0-94.104UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-aws5.15.0-1053.58UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-azure5.15.0-1056.64UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-54045
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1056.64.1UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-gcp5.15.0-1051.59UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-54045
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-gke5.15.0-1050.55UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1036.42UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-54045
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-ibm5.15.0-1046.49UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1047.53UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-kvm5.15.0-1050.55UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-94.104UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-54045
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1044.44UBUNTU-CVE-2023-54045
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1022.22UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1009.9UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-54045
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-54045
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-oracle5.15.0-1051.57UBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-raspi5.15.0-1046.49UBUNTU-CVE-2023-54045
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-54045
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-54045
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-54045
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-54045
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1027.31UBUNTU-CVE-2023-54045

Affected products (as reported)

VendorProductVersions
Linux Linux 5195d8e217a78697152d64fc09a16e063a022465 – before d061e2bfc20f2914656385816e0d20566213c54c5195d8e217a78697152d64fc09a16e063a022465 – before 1640c7bd4eddec6c72f3a99cbb74e333a2ce9f5d5195d8e217a78697152d64fc09a16e063a022465 – before f6364fa751d7486502c777f124a14d4d543fc5eb5195d8e217a78697152d64fc09a16e063a022465 – before 98ef243d5900d75a64539a2165745bffbb155d435195d8e217a78697152d64fc09a16e063a022465 – before 0152e7758cc4e9f8bfba8dbea4438d8e488d6c085195d8e217a78697152d64fc09a16e063a022465 – before 9ca08adb75fb40a8f742c371927ee73f9dc753bf5195d8e217a78697152d64fc09a16e063a022465 – before 8a40b491372966ba5426e138a53460985565d5a65195d8e217a78697152d64fc09a16e063a022465 – before 8e76b944a7b9bddef190ffe2e29c9ae342ab91ed
Linux Linux 3.3

References