5.5

CVE-2022-49957: kcm: fix strp_init() order and cleanup

Analyzed
AliasesUBUNTU-CVE-2022-49957DEBIAN-CVE-2022-49957
Published 18-06-2025Last modified 27-05-2026

Vulnerability summary

CVE-2022-49957 is a medium (CVSS 5.5) Use of Uninitialized Resource vulnerability in linux. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 19% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.27%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 5
SUSE-SU-2025:02264-1SUSE-SU-2025:02321-1SUSE-SU-2025:02322-1SUSE-SU-2025:02334-1SUSE-SU-2025:02537-1

Timeline

  1. 18-06-2025
    PublishedVulnerability first disclosed.
  2. 27-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.26% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu110 products
  • linux< 4.15.0-201.212 | < 5.4.0-136.153 | < 5.15.0-57.63
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.15.0-1147.159 | < 5.4.0-1093.101 | < 5.15.0-1027.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 44890e9ff771ef11777b2d1ebf8589255eb12502, < 473f394953216614087f4179e55cdf0cf616a13b | ≥ e5571240236c5652f3e079b1d5866716a7ad819c, < a8a0c321319ad64a5427d6172cd9c23b4d6ca1e8 | ≥ e5571240236c5652f3e079b1d5866716a7ad819c, < 0946ff31d1a8778787bf6708beb20f38715267cc | ≥ e5571240236c5652f3e079b1d5866716a7ad819c, < 1b6666964ca1de93a7bf06e122bcf3616dbd33a9 | ≥ e5571240236c5652f3e079b1d5866716a7ad819c, < 55fb8c3baa8071c5d533a9ad48624e44e2a04ef5 | ≥ e5571240236c5652f3e079b1d5866716a7ad819c, < f865976baa85915c7672f351b74d5974b93215f6 | ≥ e5571240236c5652f3e079b1d5866716a7ad819c, < 8fc29ff3910f3af08a7c40a75d436b5720efe2bf | 085cbbda4b4cc7dd2ba63806346881c2c2e10107 | 383250363daf01eb7aa3728c09ef8a4f6d8a3252 | 19042316b9e12c93bf334a04d4dd7a4e846c7311 | ≥ 4.14.22, < 4.14.293 | ≥ 4.9.84, < 4.10 | ≥ 4.9.100, < 4.10 | 4.15
  • linux_kernel≥ 4.9.84, < 4.10 | ≥ 4.9.100, < 4.10 | ≥ 4.14.22, < 4.14.293 | ≥ 4.14.41, < 4.15 | ≥ 4.15.1, < 4.19.258 | ≥ 4.20, < 5.4.213 | ≥ 5.5, < 5.10.142 | ≥ 5.11, < 5.15.66 | ≥ 5.16, < 5.19.8 | 4.15 | 6.0:rc1 | 6.0:rc2 | 6.0:rc3
Debian1 product
  • linux< 6.0.2-1

3 vendors · 113 products

References

10 links