{"id":"CVE-2021-47498","state":"PUBLISHED","title":"dm rq: don't queue request to blk-mq during DM suspend","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm rq: don't queue request to blk-mq during DM suspend\n\nDM uses blk-mq's quiesce/unquiesce to stop/start device mapper queue.\n\nBut blk-mq's unquiesce may come from outside events, such as elevator\nswitch, updating nr_requests or others, and request may come during\nsuspend, so simply ask for blk-mq to requeue it.\n\nFixes one kernel panic issue when running updating nr_requests and\ndm-mpath suspend/resume stress test.","publishedAt":"2024-05-22T08:19:44.803Z","updatedAt":"2026-05-11T13:55:48.737Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7b17c2f7292ba1f3f98dae3f7077f9e569653276","status":"affected","lessThan":"8050652810bf38241edec8717393d2446e8036f1","versionType":"git"},{"version":"7b17c2f7292ba1f3f98dae3f7077f9e569653276","status":"affected","lessThan":"8ca9745efe3528feb06ca4e117188038eea2d351","versionType":"git"},{"version":"7b17c2f7292ba1f3f98dae3f7077f9e569653276","status":"affected","lessThan":"b4459b11e84092658fa195a2587aff3b9637f0e7","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-rq.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.10","versionType":"semver"},{"version":"5.10.241","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.14.14","status":"unaffected","lessThanOrEqual":"5.14.*","versionType":"semver"},{"version":"5.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-rq.c"]}],"references":["https://git.kernel.org/stable/c/8050652810bf38241edec8717393d2446e8036f1","https://git.kernel.org/stable/c/8ca9745efe3528feb06ca4e117188038eea2d351","https://git.kernel.org/stable/c/b4459b11e84092658fa195a2587aff3b9637f0e7","https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47498.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47498","state":"PUBLISHED","datePublished":"2024-05-22T08:19:44.803Z","dateUpdated":"2026-05-11T13:55:48.737Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-22T06:20:56.204Z"},"containers":{"cna":{"title":"dm 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