CVE-2022-49957
kcm: fix strp_init() order and cleanup
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: kcm: fix strp_init() order and cleanup strp_init() is called just a few lines above this csk->sk_user_data check, it also initializes strp->work etc., therefore, it is unnecessary to call strp_done() to cancel the freshly initialized work. And if sk_user_data is already used by KCM, psock->strp should not be touched, particularly strp->work state, so we need to move strp_init() after the csk->sk_user_data check. This also makes a lockdep warning reported by syzbot go away.
Timeline
ID reserved
By Linux
Published
- 11 months later
· 11 months 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 |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.27% · top 81% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 44890e9ff771ef11777b2d1ebf8589255eb12502 – < 473f394953216614087f4179e55cdf0cf616a13b
- affected e5571240236c5652f3e079b1d5866716a7ad819c – < a8a0c321319ad64a5427d6172cd9c23b4d6ca1e8
- affected e5571240236c5652f3e079b1d5866716a7ad819c – < 0946ff31d1a8778787bf6708beb20f38715267cc
- affected e5571240236c5652f3e079b1d5866716a7ad819c – < 1b6666964ca1de93a7bf06e122bcf3616dbd33a9
- affected e5571240236c5652f3e079b1d5866716a7ad819c – < 55fb8c3baa8071c5d533a9ad48624e44e2a04ef5
- affected e5571240236c5652f3e079b1d5866716a7ad819c – < f865976baa85915c7672f351b74d5974b93215f6
- affected e5571240236c5652f3e079b1d5866716a7ad819c – < 8fc29ff3910f3af08a7c40a75d436b5720efe2bf
- affected 085cbbda4b4cc7dd2ba63806346881c2c2e10107
- affected 383250363daf01eb7aa3728c09ef8a4f6d8a3252
- affected 19042316b9e12c93bf334a04d4dd7a4e846c7311
- affected 4.14.22 – < 4.14.293
- affected 4.9.84 – < 4.10
- affected 4.9.100 – < 4.10
- affected 4.15
- unaffected < 4.15
- unaffected 4.14.293 – ≤ 4.14.*
- unaffected 4.19.258 – ≤ 4.19.*
- unaffected 5.4.213 – ≤ 5.4.*
- unaffected 5.10.142 – ≤ 5.10.*
- unaffected 5.15.66 – ≤ 5.15.*
- unaffected 5.19.8 – ≤ 5.19.*
- unaffected 6.0 – ≤ *
References (7)
- https://git.kernel.org/stable/c/473f394953216614087f4179e55cdf0cf616a13b (opens in a new tab)
- https://git.kernel.org/stable/c/a8a0c321319ad64a5427d6172cd9c23b4d6ca1e8 (opens in a new tab)
- https://git.kernel.org/stable/c/0946ff31d1a8778787bf6708beb20f38715267cc (opens in a new tab)
- https://git.kernel.org/stable/c/1b6666964ca1de93a7bf06e122bcf3616dbd33a9 (opens in a new tab)
- https://git.kernel.org/stable/c/55fb8c3baa8071c5d533a9ad48624e44e2a04ef5 (opens in a new tab)
- https://git.kernel.org/stable/c/f865976baa85915c7672f351b74d5974b93215f6 (opens in a new tab)
- https://git.kernel.org/stable/c/8fc29ff3910f3af08a7c40a75d436b5720efe2bf (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)
- 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://trackcve.app/cve/CVE-2022-49957)Record last updated .