CVE-2025-68336

Advisory lineage Upstream: 0 Downstream: 36
Deferred
Published: 22 Dec 2025, 16:14
Last modified:23 May 2026, 16:02

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
0.06% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

22 Dec 2025, 16:14
Published
Vulnerability first disclosed
23 May 2026, 16:02
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: locking/spinlock/debug: Fix data-race in do_raw_write_lock KCSAN reports: BUG: KCSAN: data-race in do_raw_write_lock / do_raw_write_lock write (marked) to 0xffff800009cf504c of 4 bytes by task 1102 on cpu 1: do_raw_write_lock+0x120/0x204 _raw_write_lock_irq do_exit call_usermodehelper_exec_async ret_from_fork read to 0xffff800009cf504c of 4 bytes by task 1103 on cpu 0: do_raw_write_lock+0x88/0x204 _raw_write_lock_irq do_exit call_usermodehelper_exec_async ret_from_fork value changed: 0xffffffff -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 1103 Comm: kworker/u4:1 6.1.111 Commit 1a365e822372 ("locking/spinlock/debug: Fix various data races") has adressed most of these races, but seems to be not consistent/not complete. >From do_raw_write_lock() only debug_write_lock_after() part has been converted to WRITE_ONCE(), but not debug_write_lock_before() part. Do it now.

EPSS Trends

Current EPSS score: 0.06%• Percentile: 18%

Affected Systems

  • linux•linux

    ≥ 1a365e822372ba24c9da0822bc583894f6f3d821, < 8e5b2cf10844402054b52b489b525dc30cc16908 | ≥ 1a365e822372ba24c9da0822bc583894f6f3d821, < c228cb699a07a5f2d596d186bc5c314c99bb8bbf | ≥ 1a365e822372ba24c9da0822bc583894f6f3d821, < 93bd23524d63deb80fb85beb2e43fafeb1043d0f | ≥ 1a365e822372ba24c9da0822bc583894f6f3d821, < 39d2ef113416f1a4205b03fb0aa2e428d1412c77 | ≥ 1a365e822372ba24c9da0822bc583894f6f3d821, < b163a5e8c703201c905d6ec7920ed79d167e8442 | ≥ 1a365e822372ba24c9da0822bc583894f6f3d821, < 16b3590c0e1e615757dade098c8fbc0d4f040c76 | ≥ 1a365e822372ba24c9da0822bc583894f6f3d821, < 396a9270a7b90886be501611b13aa636f2e8c703 | ≥ 1a365e822372ba24c9da0822bc583894f6f3d821, < c14ecb555c3ee80eeb030a4e46d00e679537f03a | 3106fb78d3579c8e9c9b3040f7f7841981919624 | c0911024ff927ba5c4786b507004cb615be1d776 | 09226e5c38639437565af01e6009a9286a351d04 | c7673f01604fa722b9d7c1e29e17cec1b8ae09c5 | c120c3dbeb76305235c8e557f84d9e2d7d0f5933 | ≥ 4.4.209, < 4.5 | ≥ 4.9.209, < 4.10 | ≥ 4.14.164, < 4.15 | ≥ 4.19.95, < 4.20 | ≥ 5.4.11, < 5.5 | 5.5

References (8)