CVE-2025-40146

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the Linux kernel’s blk-mq subsystem related to memory allocation. Specifically, allocating and freeing sched tags while a queue is frozen can lead to a deadlock. The issue arises from a long-term problem where memory is allocated before freezing the queue and freed after it is unfrozen, resolving a potential deadlock scenario.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.