CVE-2022-49531

loop: implement ->free_disk

State: Published
Severity: 7.8 High
Published: Feb 26, 2025
Updated: Aug 5, 2026
Reserved: Feb 26, 2025

Description

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

loop: implement ->free_disk

Ensure that the lo_device which is stored in the gendisk private data is valid until the gendisk is freed. Currently the loop driver uses a lot of effort to make sure a device is not freed when it is still in use, but to to fix a potential deadlock this will be relaxed a bit soon.

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

CWE-667 Improper Locking

Affected Products

Product	Versions
LinuxLinux	73285082745045bcd64333c1fbaa88f8490f2626 to before aadd1443aae7fe8956e3b11157827067f034406aAffected 73285082745045bcd64333c1fbaa88f8490f2626 to before d2c7f56f8b5256d57f9e3fc7794c31361d43bdd9Affected
LinuxLinux	2.6.22Affected before 2.6.22Not affected 5.18.3 through 5.18.*Not affected 5.19 and laterNot affected

References

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