{"id":"CVE-2026-74373","revision":"11f2fc6a292243ed814ec5cdf76ff8ab","records":[{"revision":"11f2fc6a292243ed814ec5cdf76ff8ab","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-74373","aliases":[],"title":"md/raid1,raid10: fix bio accounting for split md cloned bios","description":"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.","state":0,"publishedAt":"2026-08-15T05:58:52.99+00:00","modifiedAt":"2026-10-21T12:45:30.565+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/md/raid1.c\",\n                        \"drivers/md/raid10.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"bb2a9acefaf9ce5bbc1e70f407e34599233d0243\",\n                            \"lessThan\": \"91d0fc000d8cc40fcb4285e6160dd1ce98c56201\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"bb2a9acefaf9ce5bbc1e70f407e34599233d0243\",\n                            \"lessThan\": \"235d16ae715104b981a4fbc9434398e3816773b1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"bb2a9acefaf9ce5bbc1e70f407e34599233d0243\",\n                            \"lessThan\": \"bcf30e14d2bd509c57e93021b46aedc878896e7b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"bb2a9acefaf9ce5bbc1e70f407e34599233d0243\",\n                            \"lessThan\": \"bb8d7ea74206b419aa05d7773a15a923b668c9f0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"bb2a9acefaf9ce5bbc1e70f407e34599233d0243\",\n                            \"lessThan\": \"ba976e3501111d11c550848b3b7341a73035f582\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/md/raid1.c\",\n                        \"drivers/md/raid10.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.160\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.114\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.57\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/91d0fc000d8cc40fcb4285e6160dd1ce98c56201","https://git.kernel.org/stable/c/235d16ae715104b981a4fbc9434398e3816773b1","https://git.kernel.org/stable/c/bcf30e14d2bd509c57e93021b46aedc878896e7b","https://git.kernel.org/stable/c/bb8d7ea74206b419aa05d7773a15a923b668c9f0","https://git.kernel.org/stable/c/ba976e3501111d11c550848b3b7341a73035f582"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74373","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74373","identifiers":["CVE-2026-74373"]},"retained":false,"historicalAffected":[]}],"coverage":[]}