CVE-2025-40146

The CVE-2025-40146 entry refers to a Linux kernel issue in the blk-mq subsystem where deadlock can occur as nr_requests grow. The root cause is described as a conflict between allocating/freeing sched_tags while the I/O queue is frozen, which can lead to a deadlock. The published fix involves all...

CVE-2025-40146 blk-mq: fix potential deadlock while nr_requests grown

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix potential deadlock while nrrequests grown Allocate and free schedtags while queue is freezed can deadlock1, this is a long term problem, hence allocate memory before freezing queue and free memory after queue is...