{"id":"CVE-2026-74373","summary":"md/raid1,raid10: fix bio accounting for split md cloned bios","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1,raid10: fix bio accounting for split md cloned bios\n\nUse md_cloned_bio() to control bio accounting instead of relying\non r1bio_existed in raid1 or the io_accounting flag in raid10.\n\nThe previous logic does not reliably reflect whether a bio is an\nmd cloned bio. When a failed bio is split and resubmitted via\nbio_submit_split_bioset() on the error path, this can lead to either\ndouble accounting for md cloned bios, or missing accounting for bios\nreturned from bio_submit_split_bioset()\n\nFix this by using md_cloned_bio() to detect md cloned bios and\nskip accounting accordingly.","modified":"2026-08-18T03:30:53.531035799Z","published":"2026-08-15T05:58:52.990Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74373.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/ba976e3501111d11c550848b3b7341a73035f582"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bb8d7ea74206b419aa05d7773a15a923b668c9f0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74373.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74373"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"bb2a9acefaf9ce5bbc1e70f407e34599233d0243"},{"fixed":"bb8d7ea74206b419aa05d7773a15a923b668c9f0"},{"fixed":"ba976e3501111d11c550848b3b7341a73035f582"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74373.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.6.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74373.json"}}],"schema_version":"1.9.0"}