CVE-2026-74373

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

Description An issue exists in the md/raid1 and raid10 components regarding bio accounting for split md cloned bios. The previous logic failed to reliably determine if a bio was an md cloned bio. Specifically, when a failed bio is split and resubmitted through the bio submit split bioset() function on the error path, it can result in either double accounting for md cloned bios or missing accounting for bios returned from bio submit split bioset(). The fix involves using the md cloned bio() function to accurately detect md cloned bios and skip accounting accordingly, replacing the reliance on r1bio existed in raid1 or the io accounting flag in raid10.

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