CVE-2026-74375
Description
AI Translation Available
In the Linux kernel, the following vulnerability has been resolved:
md/raid1,raid10: fix deadlock in read error recovery path
raid1d and raid10d may resubmit a split md cloned bio while handling
a read error. In this case, resubmitting the bio can lead to a deadlock
if the array is suspended before md_handle_request() acquires an
active_io reference via percpu_ref_tryget_live().
Since the cloned bio already holds an active_io reference,
trying to acquire another reference via percpu_ref_tryget_live()
can lead to a deadlock while the array is suspended.
Fix this by using percpu_ref_get() for md cloned bios.
https://git.kernel.org/stable/c/38777f014c37972868f1733a651c85288bb8a757
https://git.kernel.org/stable/c/7b15c24f805339a585cfe7d72f446b7e88b9bcc0