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.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade bpftool-debuginfoUpgrade bpftoolUpgrade python-perfUpgrade kernel-toolsUpgrade kernel-livepatch-4.14.326-245.539Upgrade perfUpgrade kernel-develUpgrade kernel-tools-develUpgrade kernel-livepatch-5.10.196-185.743Upgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-debuginfoUpgrade kernel-headersUpgrade kernelUpgrade kernel-livepatch-5.15.133-86.144Upgrade kernel-debuginfoUpgrade python-perf-debuginfo | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-develUpgrade perfUpgrade kernel-headersUpgrade python3-perfUpgrade perf-debuginfoUpgrade kernel-toolsUpgrade kernel-livepatch-6.1.55-75.123Upgrade kernel-libbpfUpgrade kernel-debuginfo-common-x86_64Upgrade python3-perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-develUpgrade kernel-debuginfoUpgrade kernelUpgrade bpftoolUpgrade kernel-libbpf-develUpgrade kernel-tools-debuginfoUpgrade kernel-libbpf-static | Feb 20, 2026 | Dec 24, 2025 |
| Debian | — | Upgrade linux | Dec 29, 2025 | Dec 29, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade kernelUpgrade python3-perfUpgrade bpftoolUpgrade kernel-tools | Mar 10, 2026 | Mar 10, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 24, 2025 |
| Ubuntu | — | Upgrade linux-xilinx-zynqmpUpgrade linux-azure-5.4Upgrade linux-kvmUpgrade linux-intel-iotg-5.15Upgrade linux-realtimeUpgrade linux-azure-5.15Upgrade linux-azureUpgrade linux-nvidiaUpgrade linux-hwe-5.15Upgrade linux-oracleUpgrade linux-raspiUpgrade linux-lowlatency-hwe-5.15Upgrade linux-bluefieldUpgrade linux-gcp-fipsUpgrade linux-ibmUpgrade linux-hwe-5.4Upgrade linux-awsUpgrade linux-aws-fipsUpgrade linux-iotUpgrade linux-gkeopUpgrade linux-gcp-5.15Upgrade linux-oracle-5.15Upgrade linux-gkeUpgrade linux-oracle-5.4Upgrade linux-riscv-5.15Upgrade linux-gcp-5.4Upgrade linux-fipsUpgrade linux-nvidia-tegra-igxUpgrade linux-aws-5.15Upgrade linux-aws-5.4Upgrade linux-gcpUpgrade linux-nvidia-tegra-5.15Upgrade linuxUpgrade linux-nvidia-tegraUpgrade linux-azure-fipsUpgrade linux-intel-iot-realtimeUpgrade linux-intel-iotgUpgrade linux-lowlatencyUpgrade linux-ibm-5.15Upgrade linux-raspi-5.4Upgrade linux-ibm-5.4 | Jan 6, 2026 | Dec 24, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 24, 2025 |
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