CVE-2026-72440

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

Description Reference leaks occur in the md/raid1 component during write failures. The raid1 make request() function acquires a writes pending reference via md write start() before calling raid1 write request(). Certain failure paths within raid1 write request() complete the bio and return without reaching the normal completion path, causing the md write end() function to be skipped. Furthermore, if wait blocked rdev() fails after wait barrier() succeeds, the associated barrier reference is not released.

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