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Vulnerabilities

Vulnerability · 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

Published Jun 18, 2025 · catalog updated May 27, 2026 · Linux Linux

Check if you run it

No confirmed exploitation is on record for CVE-2022-49957. EPSS is 0.26%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.26%
Remediation
Version ranges on file
Affected products
vendor Linux Linux e5571240236c5652f3e079b1d5866716a7ad819c <1b6666964ca1de93a7bf06e122bcf3616dbd33a9

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux e5571240236c5652f3e079b1d5866716a7ad819c <1b6666964ca1de93a7bf06e122bcf3616dbd33a9e5571240236c5652f3e079b1d5866716a7ad819c <1b6666964ca1de93a7bf06e122bcf3616dbd33a9

How to fix CVE-2022-49957

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2022-49957. EPSS is 0.26%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux e5571240236c5652f3e079b1d5866716a7ad819c <1b6666964ca1de93a7bf06e122bcf3616dbd33a9 e5571240236c5652f3e079b1d5866716a7ad819c <1b6666964ca1de93a7bf06e122bcf3616dbd33a9. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.26%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 18, 2025 · EUVD

    Detected

    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

  2. May 27, 2026 · EUVD

    Updated

    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

Sources

  • CVE.orgVulnerability recordCVE-2022-49957

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2022-49957

    30-day exploitation probability 0.26%

    first.org
  • EUVDVulnerability recordEUVD-2022-55239

    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 th

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 21, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.