CVE-2024-50109

md/raid10: fix null ptr dereference in raid10_size()

State: Published
Severity: 5.5 Medium
Published: Nov 5, 2024
Updated: May 11, 2026
Reserved: Oct 21, 2024

Description

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

md/raid10: fix null ptr dereference in raid10_size()

In raid10_run() if raid10_set_queue_limits() succeed, the return value is set to zero, and if following procedures failed raid10_run() will return zero while mddev->private is still NULL, causing null ptr dereference in raid10_size().

Fix the problem by only overwrite the return value if raid10_set_queue_limits() failed.

Scores

CVSS	Score	Vector	Source
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-476 NULL Pointer Dereference

Affected Products

Product	Versions
LinuxLinux	3d8466ba68d444f5528dcbff106e8bf5c7d51aa0 to before b3054db2fd2d35f2eb3b4b5fb1407792f465391cAffected 3d8466ba68d444f5528dcbff106e8bf5c7d51aa0 to before 825711e00117fc686ab89ac36a9a7b252dc349c6Affected
LinuxLinux	6.9Affected before 6.9Not affected 6.11.6 through 6.11.*Not affected 6.12 and laterNot affected

References

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