dm clone: Fix UAF in clone_dtr()

Description

In the Linux kernel, the following vulnerability has been resolved: dm clone: Fix UAF in clone_dtr() Dm_clone also has the same UAF problem when dm_resume() and dm_destroy() are concurrent. Therefore, cancelling timer again in clone_dtr().

Scores

No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.

EPSS (exploitation in 30 days)

0.24% · top 84% of all CVEs (7 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.

Affected products

• Linux · Linux

  • affected 7431b7835f554f8608b415a02cf3c3f086309e02 – < 520b56cfd9faee7683f081c3a38f11a81b13a68e
  • affected 7431b7835f554f8608b415a02cf3c3f086309e02 – < 342cfd8426dff4228e6c714bcb9fc8295a2748dd
  • affected 7431b7835f554f8608b415a02cf3c3f086309e02 – < 856edd0e92f3fe89606b704c86a93daedddfe6ec
  • affected 7431b7835f554f8608b415a02cf3c3f086309e02 – < b1ddb666073bb5f36390aaabaa1a4d48d78c52ed
  • affected 7431b7835f554f8608b415a02cf3c3f086309e02 – < 9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff
  • affected 7431b7835f554f8608b415a02cf3c3f086309e02 – < e4b5957c6f749a501c464f92792f1c8e26b61a94

• Linux · Linux

  • affected 5.4
  • unaffected < 5.4
  • unaffected 5.4.229 – ≤ 5.4.*
  • unaffected 5.10.163 – ≤ 5.10.*
  • unaffected 5.15.87 – ≤ 5.15.*
  • unaffected 6.0.18 – ≤ 6.0.*
  • unaffected 6.1.4 – ≤ 6.1.*
  • unaffected 6.2 – ≤ *

References (6)

• https://git.kernel.org/stable/c/520b56cfd9faee7683f081c3a38f11a81b13a68e (opens in a new tab)
• https://git.kernel.org/stable/c/342cfd8426dff4228e6c714bcb9fc8295a2748dd (opens in a new tab)
• https://git.kernel.org/stable/c/856edd0e92f3fe89606b704c86a93daedddfe6ec (opens in a new tab)
• https://git.kernel.org/stable/c/b1ddb666073bb5f36390aaabaa1a4d48d78c52ed (opens in a new tab)
• https://git.kernel.org/stable/c/9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff (opens in a new tab)
• https://git.kernel.org/stable/c/e4b5957c6f749a501c464f92792f1c8e26b61a94 (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

[![CVE-2022-50843](https://trackcve.app/badge/CVE-2022-50843.svg)](https://trackcve.app/cve/CVE-2022-50843)

Record last updated 11 May 2026, 19:26 UTC.