{"id":"CVE-2026-98227","state":"PUBLISHED","title":"memstick: ms_block: destroy io_queue workqueue on removal","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmemstick: ms_block: destroy io_queue workqueue on removal\n\nmsb_init_disk() creates the per-card ordered workqueue msb->io_queue with\nalloc_ordered_workqueue(). It is torn down with destroy_workqueue() only\non the init error path; msb_remove() never destroys it. msb_stop() merely\nflushes the queue, and neither msb_data_clear() nor put_disk() free it. As\na result every card insert/remove cycle leaks the workqueue and its\nkworker, exhausting kernel memory over repeated cycles.\n\nDestroy the workqueue in msb_remove() after the disk has been removed and\nthe queue drained.","publishedAt":"2026-10-06T08:45:02.265Z","updatedAt":"2026-10-19T09:15:58.990Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63","status":"affected","lessThan":"0ff795163f37109a134b5a421558530f8d091544","versionType":"git"},{"version":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63","status":"affected","lessThan":"19c3da6621a253f1f8b937ed91bc22330a930d9c","versionType":"git"},{"version":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63","status":"affected","lessThan":"9a2e7cdc0880e735aff0968ee402f2c92a992b9b","versionType":"git"},{"version":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63","status":"affected","lessThan":"6611f78ec3fd4b33a00bfda20725b254a22979f6","versionType":"git"},{"version":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63","status":"affected","lessThan":"f222bb8c30cf5699c560b29179ff2bddcac1f950","versionType":"git"},{"version":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63","status":"affected","lessThan":"90af7fde083e1b22c349c3a8b1626728e44e474c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/memstick/core/ms_block.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.12","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/memstick/core/ms_block.c"]}],"references":["https://git.kernel.org/stable/c/0ff795163f37109a134b5a421558530f8d091544","https://git.kernel.org/stable/c/19c3da6621a253f1f8b937ed91bc22330a930d9c","https://git.kernel.org/stable/c/9a2e7cdc0880e735aff0968ee402f2c92a992b9b","https://git.kernel.org/stable/c/6611f78ec3fd4b33a00bfda20725b254a22979f6","https://git.kernel.org/stable/c/f222bb8c30cf5699c560b29179ff2bddcac1f950","https://git.kernel.org/stable/c/90af7fde083e1b22c349c3a8b1626728e44e474c"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98227.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98227","state":"PUBLISHED","datePublished":"2026-10-06T08:45:02.265Z","dateUpdated":"2026-10-19T09:15:58.990Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.328Z"},"containers":{"cna":{"title":"memstick: ms_block: destroy io_queue workqueue on removal","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmemstick: ms_block: destroy io_queue workqueue on removal\n\nmsb_init_disk() creates the per-card ordered workqueue msb->io_queue with\nalloc_ordered_workqueue(). It is torn down with destroy_workqueue() only\non the init error path; msb_remove() never destroys it. msb_stop() merely\nflushes the queue, and neither msb_data_clear() nor put_disk() free it. As\na result every card insert/remove cycle leaks the workqueue and its\nkworker, exhausting kernel memory over repeated cycles.\n\nDestroy the workqueue in msb_remove() after the disk has been removed and\nthe queue drained."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63","status":"affected","lessThan":"0ff795163f37109a134b5a421558530f8d091544","versionType":"git"},{"version":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63","status":"affected","lessThan":"19c3da6621a253f1f8b937ed91bc22330a930d9c","versionType":"git"},{"version":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63","status":"affected","lessThan":"9a2e7cdc0880e735aff0968ee402f2c92a992b9b","versionType":"git"},{"version":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63","status":"affected","lessThan":"6611f78ec3fd4b33a00bfda20725b254a22979f6","versionType":"git"},{"version":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63","status":"affected","lessThan":"f222bb8c30cf5699c560b29179ff2bddcac1f950","versionType":"git"},{"version":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63","status":"affected","lessThan":"90af7fde083e1b22c349c3a8b1626728e44e474c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/memstick/core/ms_block.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.12","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/memstick/core/ms_block.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0ff795163f37109a134b5a421558530f8d091544"},{"url":"https://git.kernel.org/stable/c/19c3da6621a253f1f8b937ed91bc22330a930d9c"},{"url":"https://git.kernel.org/stable/c/9a2e7cdc0880e735aff0968ee402f2c92a992b9b"},{"url":"https://git.kernel.org/stable/c/6611f78ec3fd4b33a00bfda20725b254a22979f6"},{"url":"https://git.kernel.org/stable/c/f222bb8c30cf5699c560b29179ff2bddcac1f950"},{"url":"https://git.kernel.org/stable/c/90af7fde083e1b22c349c3a8b1626728e44e474c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:15:58.990Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}