{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21817","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-12-29T08:45:45.774Z","datePublished":"2025-02-27T20:04:15.988Z","dateUpdated":"2026-05-11T21:07:06.817Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:07:06.817Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nblock: mark GFP_NOIO around sysfs ->store()\n\nsysfs ->store is called with queue freezed, meantime we have several\n->store() callbacks(update_nr_requests, wbt, scheduler) to allocate\nmemory with GFP_KERNEL which may run into direct reclaim code path,\nthen potential deadlock can be caused.\n\nFix the issue by marking NOIO around sysfs ->store()"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["block/blk-sysfs.c"],"versions":[{"version":"8985da5481562e96b95e94ed8e5cc9b6565eb82b","lessThan":"2566ce907e5d5db8a039647208e029ce559baa31","status":"affected","versionType":"git"},{"version":"c99f66e4084a62a2cc401c4704a84328aeddc9ec","lessThan":"7c0be4ead1f8f5f8be0803f347de0de81e3b8e1c","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["block/blk-sysfs.c"],"versions":[{"version":"6.13.2","lessThan":"6.13.3","status":"affected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13.2","versionEndExcluding":"6.13.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2566ce907e5d5db8a039647208e029ce559baa31"},{"url":"https://git.kernel.org/stable/c/7c0be4ead1f8f5f8be0803f347de0de81e3b8e1c"}],"title":"block: mark GFP_NOIO around sysfs ->store()","x_generator":{"engine":"bippy-1.2.0"}}}}