CVE-2026-74373md/raid1,raid10: fix bio accounting for split md cloned bios
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from bb2a9acefaf9ce5bbc1e70f407e34599233d0243 before bcf30e14d2bd509c57e93021b46aedc878896e7b; from bb2a9acefaf9ce5bbc1e70f407e34599233d0243 before bb8d7ea74206b419aa05d7773a15a923b668c9f0; from bb2a9acefaf9ce5bbc1e70f407e34599233d0243 before ba976e3501111d11c550848b3b7341a73035f582 | CNA record |
References
- https://git.kernel.org/stable/c/bcf30e14d2bd509c57e93021b46aedc878896e7b
- https://git.kernel.org/stable/c/bb8d7ea74206b419aa05d7773a15a923b668c9f0
- https://git.kernel.org/stable/c/ba976e3501111d11c550848b3b7341a73035f582
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.