{"id":"CVE-2026-74375","summary":"md/raid1,raid10: fix deadlock in read error recovery path","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1,raid10: fix deadlock in read error recovery path\n\nraid1d and raid10d may resubmit a split md cloned bio while handling\na read error. In this case, resubmitting the bio can lead to a deadlock\nif the array is suspended before md_handle_request() acquires an\nactive_io reference via percpu_ref_tryget_live().\n\nSince the cloned bio already holds an active_io reference,\ntrying to acquire another reference via percpu_ref_tryget_live()\ncan lead to a deadlock while the array is suspended.\n\nFix this by using percpu_ref_get() for md cloned bios.","modified":"2026-08-18T03:31:09.957607054Z","published":"2026-08-15T05:58:54.335Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74375.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/38777f014c37972868f1733a651c85288bb8a757"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7b15c24f805339a585cfe7d72f446b7e88b9bcc0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74375.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74375"},{"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":"38777f014c37972868f1733a651c85288bb8a757"},{"fixed":"7b15c24f805339a585cfe7d72f446b7e88b9bcc0"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74375.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-2026-74375.json"}}],"schema_version":"1.9.0"}