CVE-2026-72438

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

Description An issue exists in the md/raid10 component where reference leaks occur during discard failures. The raid10 make request() function acquires a writes pending reference via md write start() before calling raid10 handle discard(). Certain failure paths within raid10 handle discard() complete the bio and return without calling md write end(), leading to an unbalanced writes pending accounting. Furthermore, if discard split allocation failures occur after wait barrier() succeeds, the system may return without calling allow barrier(), resulting in a leak of the associated barrier reference.

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