CVE-2024-41012filelock: Remove locks reliably when fcntl/close race is detected
- 7.8HighCVSS base score
- 0.23%Exploitation in 30 daysEPSS · top 86% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: filelock: Remove locks reliably when fcntl/close race is detected When fcntl_setlk() races with close(), it removes the created lock with do_lock_file_wait(). However, LSMs can allow the first do_lock_file_wait() that created the lock while denying the second do_lock_file_wait() that tries to remove the lock. Separately, posix_lock_file() could also fail to remove a lock due to GFP_KERNEL allocation failure (when splitting a range in the middle). After the bug has been triggered, use-after-free reads will occur in lock_get_status() when userspace reads /proc/locks. This can likely be used to read arbitrary kernel memory, but can't corrupt kernel memory. Fix it by calling locks_remove_posix() instead, which is designed to reliably get rid of POSIX locks associated with the given file and files_struct and is also used by filp_flush().
Timeline
ID reserved
By Linux
- 11 days later
· 11 days later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Medium6.3 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.23% · top 86% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected c293621bbf678a3d85e3ed721c3921c8a670610d – < d30ff33040834c3b9eee29740acd92f9c7ba2250
- affected c293621bbf678a3d85e3ed721c3921c8a670610d – < dc2ce1dfceaa0767211a9d963ddb029ab21c4235
- affected c293621bbf678a3d85e3ed721c3921c8a670610d – < 5661b9c7ec189406c2dde00837aaa4672efb6240
- affected c293621bbf678a3d85e3ed721c3921c8a670610d – < 52c87ab18c76c14d7209646ccb3283b3f5d87b22
- affected c293621bbf678a3d85e3ed721c3921c8a670610d – < ef8fc41cd6f95f9a4a3470f085aecf350569a0b3
- affected c293621bbf678a3d85e3ed721c3921c8a670610d – < 5f5d0799eb0a01d550c21b7894e26b2d9db55763
- affected c293621bbf678a3d85e3ed721c3921c8a670610d – < b6d223942c34057fdfd8f149e763fa823731b224
- affected c293621bbf678a3d85e3ed721c3921c8a670610d – < 3cad1bc010416c6dd780643476bc59ed742436b9
- affected 2.6.13
- unaffected < 2.6.13
- unaffected 4.19.319 – ≤ 4.19.*
- unaffected 5.4.281 – ≤ 5.4.*
- unaffected 5.10.223 – ≤ 5.10.*
- unaffected 5.15.164 – ≤ 5.15.*
- unaffected 6.1.101 – ≤ 6.1.*
- unaffected 6.6.42 – ≤ 6.6.*
- unaffected 6.9.9 – ≤ 6.9.*
- unaffected 6.10 – ≤ *
References
References9
- https://git.kernel.org/stable/c/d30ff33040834c3b9eee29740acd92f9c7ba2250 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/dc2ce1dfceaa0767211a9d963ddb029ab21c4235 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/5661b9c7ec189406c2dde00837aaa4672efb6240 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/52c87ab18c76c14d7209646ccb3283b3f5d87b22 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/ef8fc41cd6f95f9a4a3470f085aecf350569a0b3 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/5f5d0799eb0a01d550c21b7894e26b2d9db55763 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/b6d223942c34057fdfd8f149e763fa823731b224 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/3cad1bc010416c6dd780643476bc59ed742436b9 (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-39361 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-41012)Record last updated .