CVE-2024-50091

dm vdo: don't refer to dedupe_context after releasing it

State: Published
Severity: 7.8 High
Published: Nov 5, 2024
Updated: Aug 5, 2026
Reserved: Oct 21, 2024

Description

In the Linux kernel, the following vulnerability has been resolved:

dm vdo: don't refer to dedupe_context after releasing it

Clear the dedupe_context pointer in a data_vio whenever ownership of the context is lost, so that vdo can't examine it accidentally.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	cfaf07fae7a262865a67b6010eef3bc0a1ae50b2 to before 63ef073084c67878d7a92e15ad055172da3f05a3Affected cfaf07fae7a262865a67b6010eef3bc0a1ae50b2 to before 0808ebf2f80b962e75741a41ced372a7116f1e26Affected
LinuxLinux	6.9Affected before 6.9Not affected 6.11.4 through 6.11.*Not affected 6.12 and laterNot affected

References

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