CVE-2022-50843

dm clone: Fix UAF in clone_dtr()

EPSS 0.2%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

30 Dec 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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().

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/342cfd8426dff4228e6c714bcb9fc8295a2748dd https://git.kernel.org/stable/c/520b56cfd9faee7683f081c3a38f11a81b13a68e https://git.kernel.org/stable/c/856edd0e92f3fe89606b704c86a93daedddfe6ec https://git.kernel.org/stable/c/9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff https://git.kernel.org/stable/c/b1ddb666073bb5f36390aaabaa1a4d48d78c52ed https://git.kernel.org/stable/c/e4b5957c6f749a501c464f92792f1c8e26b61a94