PT-2026-43917 · Linux · Linux Kernel
CVE-2026-46050
·
Published
2026-05-27
·
Updated
2026-07-31
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A deadlock occurs in the md/raid10 module during an array check operation when NOWAIT requests are processed. When a check is running, the system raises a barrier that blocks normal requests and increments the
nr pending variable via wait barrier(). However, NOWAIT requests do not block and do not increment nr pending. Because the raid end bio io() function unconditionally decrements nr pending via allow barrier(), the nr pending value can underflow. This causes the md resync thread to hang indefinitely while waiting for nr pending to reach zero, leading to a deadlocked state.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Locking
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel