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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2025-68336

locking/spinlock/debug: Fix data-race in do_raw_write_lock

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 1a365e822372ba24c9da0822bc583894f6f3d821 to < 8e5b2cf10844402054b52b489b525dc30cc16908affected
  • 1a365e822372ba24c9da0822bc583894f6f3d821 to < c228cb699a07a5f2d596d186bc5c314c99bb8bbfaffected
  • 1a365e822372ba24c9da0822bc583894f6f3d821 to < 93bd23524d63deb80fb85beb2e43fafeb1043d0faffected
  • 1a365e822372ba24c9da0822bc583894f6f3d821 to < 39d2ef113416f1a4205b03fb0aa2e428d1412c77affected
  • 1a365e822372ba24c9da0822bc583894f6f3d821 to < b163a5e8c703201c905d6ec7920ed79d167e8442affected
  • 1a365e822372ba24c9da0822bc583894f6f3d821 to < 16b3590c0e1e615757dade098c8fbc0d4f040c76affected
  • 1a365e822372ba24c9da0822bc583894f6f3d821 to < 396a9270a7b90886be501611b13aa636f2e8c703affected
  • 1a365e822372ba24c9da0822bc583894f6f3d821 to < c14ecb555c3ee80eeb030a4e46d00e679537f03aaffected
  • 3106fb78d3579c8e9c9b3040f7f7841981919624affected
  • c0911024ff927ba5c4786b507004cb615be1d776affected
  • 09226e5c38639437565af01e6009a9286a351d04affected
  • c7673f01604fa722b9d7c1e29e17cec1b8ae09c5affected
  • c120c3dbeb76305235c8e557f84d9e2d7d0f5933affected
  • 4.4.209 to < 4.5affected
  • 4.9.209 to < 4.10affected
  • 4.14.164 to < 4.15affected
  • 4.19.95 to < 4.20affected
  • 5.4.11 to < 5.5affected

Linux Linux

Default version status: affected

  • 5.5affected
  • 0 to < 5.5unaffected
  • 5.10.248 to ≤ 5.10.*unaffected
  • 5.15.198 to ≤ 5.15.*unaffected
  • 6.1.160 to ≤ 6.1.*unaffected
  • 6.6.120 to ≤ 6.6.*unaffected
  • 6.12.62 to ≤ 6.12.*unaffected
  • 6.17.12 to ≤ 6.17.*unaffected
  • 6.18.1 to ≤ 6.18.*unaffected
  • 6.19 to ≤ *unaffected

References