CVE-2023-54045: linux

CVSS: UnknownDeferred
AliasesUBUNTU-CVE-2023-54045DEBIAN-CVE-2023-54045
Published 24-12-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2023-54045 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 19.7% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.28%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 13 · Related 13
SUSE-SU-2026:0263-1SUSE-SU-2026:0278-1SUSE-SU-2026:0281-1SUSE-SU-2026:0293-1SUSE-SU-2026:0315-1SUSE-SU-2026:0316-1

Timeline

  1. 24-12-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

0.00 pp

From 0.28% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu124 products
  • linuxAll versions (No fix recorded) | < 5.4.0-169.187 | < 5.15.0-94.104
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1116.126 | < 5.15.0-1053.58
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.55-1 | < 6.5.3-1
Linux1 product
  • linux≥ 5195d8e217a78697152d64fc09a16e063a022465, < d061e2bfc20f2914656385816e0d20566213c54c | ≥ 5195d8e217a78697152d64fc09a16e063a022465, < 1640c7bd4eddec6c72f3a99cbb74e333a2ce9f5d | ≥ 5195d8e217a78697152d64fc09a16e063a022465, < f6364fa751d7486502c777f124a14d4d543fc5eb | ≥ 5195d8e217a78697152d64fc09a16e063a022465, < 98ef243d5900d75a64539a2165745bffbb155d43 | ≥ 5195d8e217a78697152d64fc09a16e063a022465, < 0152e7758cc4e9f8bfba8dbea4438d8e488d6c08 | ≥ 5195d8e217a78697152d64fc09a16e063a022465, < 9ca08adb75fb40a8f742c371927ee73f9dc753bf | ≥ 5195d8e217a78697152d64fc09a16e063a022465, < 8a40b491372966ba5426e138a53460985565d5a6 | ≥ 5195d8e217a78697152d64fc09a16e063a022465, < 8e76b944a7b9bddef190ffe2e29c9ae342ab91ed | ≥ 5195d8e217a78697152d64fc09a16e063a022465, < b59bc6e37237e37eadf50cd5de369e913f524463 | 3.3

3 vendors · 126 products

References

12 links
Show all 12 references