Vulnerability in Linux

CVE-2022-49957

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (16.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-49957: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.000

Affected products

  • Linux — versions 4.9.100, 5.19.8, 085cbbda4b4cc7dd2ba63806346881c2c2e10107
  • Linux Kernel — versions 4.15, 6.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-49957?
CVE-2022-49957 is a medium-severity vulnerability in Linux, classified under Use of Uninitialized Resource. CVSS score: 5.5/10. Published 2025-06-18.
How severe is CVE-2022-49957?
Medium severity. CVSS v3 base score is 5.5 out of 10.