{"id":"CVE-2026-90275","summary":"md/raid1: don't set array_frozen in raid1_takeover()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: don't set array_frozen in raid1_takeover()\n\nraid1_takeover() sets conf-\u003earray_frozen = 1 on the newly-allocated\nr1conf and nothing ever clears it, so every I/O to the array stalls\npermanently once _wait_barrier() sees it stuck at 1.\n\nThis used to be harmless: level_store() called mddev_resume() right\nafter pers-\u003erun(), which called raid1_quiesce(mddev, 0) and cleared\narray_frozen back to 0 regardless of what raid1_takeover() set. Commit\nb39f35ebe86d (\"md: don't quiesce in mddev_suspend()\") removed that\nquiesce(mddev, 0) call, so the pre-set now sticks.\n\nsetup_conf() already zero-initializes the new r1conf via kzalloc, so\njust don't set array_frozen here.\n\nSame class of bug as commit 892da88d1cd9 (\"md/raid10: fix a\n'conf-\u003ebarrier' leakage in raid10_takeover()\"), also triggered by\nb39f35ebe86d.","modified":"2026-09-19T03:47:25.672142933Z","published":"2026-09-17T16:08:08.053Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90275.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/668d99ba47210ab6ceb18f1cf022c0accca7e3bb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b6ec4bf1ec4446c0213c08ea493e48e6b83cd1af"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c57ec2749ee03cace564eec7bb37c89dc3d8d47b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dc386aa0ac0a3ec06c9a3ea9b064b073fb72a916"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f9cdb5bb8efbf401e84d850828271af87e6be2dc"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90275.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90275"},{"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":"b39f35ebe86d88788d85f61e83c81c308cb76727"},{"fixed":"668d99ba47210ab6ceb18f1cf022c0accca7e3bb"},{"fixed":"c57ec2749ee03cace564eec7bb37c89dc3d8d47b"},{"fixed":"f9cdb5bb8efbf401e84d850828271af87e6be2dc"},{"fixed":"b6ec4bf1ec4446c0213c08ea493e48e6b83cd1af"},{"fixed":"dc386aa0ac0a3ec06c9a3ea9b064b073fb72a916"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90275.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.6.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90275.json"}}],"schema_version":"1.9.0"}