Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: md/raid1,raid10: fix bio accounting for split md cloned bios Use md_cloned_bio() to control bio accounting instead of relying on r1bio_existed in raid1 or the io_accounting flag in raid10. The previous logic does not reliably reflect whether a bio is an md cloned bio. When a failed bio is split and resubmitted via bio_submit_split_bioset() on the error path, this can lead to either double accounting for md cloned bios, or missing accounting for bios returned from bio_submit_split_bioset() Fix this by using md_cloned_bio() to detect md cloned bios and skip accounting accordingly.
References
- https://git.kernel.org/stable/c/ba976e3501111d11c550848b3b7341a73035f582
- https://git.kernel.org/stable/c/bb8d7ea74206b419aa05d7773a15a923b668c9f0
FAQ
What is CVE-2026-74373?
CVE-2026-74373 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: md/raid1,raid10: fix bio accounting for split md cloned bios Use md_cloned_bio() to control bio accounting instead of relying on r...
How severe is CVE-2026-74373?
CVSS scoring is not yet available for CVE-2026-74373. Check NVD for updates.
Is there a patch for CVE-2026-74373?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.