{"id":"CVE-2026-98227","summary":"memstick: ms_block: destroy io_queue workqueue on removal","details":"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-\u003eio_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.","modified":"2026-10-07T02:47:30.031468758Z","published":"2026-10-06T08:45:02.265Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98227.json","cna_assigner":"Linux"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/0ff795163f37109a134b5a421558530f8d091544"},{"type":"WEB","url":"https://git.kernel.org/stable/c/19c3da6621a253f1f8b937ed91bc22330a930d9c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6611f78ec3fd4b33a00bfda20725b254a22979f6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/90af7fde083e1b22c349c3a8b1626728e44e474c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9a2e7cdc0880e735aff0968ee402f2c92a992b9b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f222bb8c30cf5699c560b29179ff2bddcac1f950"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98227.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98227"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0ab30494bc4f3bc1ea4659b7c5d97c5218554a63"},{"fixed":"0ff795163f37109a134b5a421558530f8d091544"},{"fixed":"19c3da6621a253f1f8b937ed91bc22330a930d9c"},{"fixed":"9a2e7cdc0880e735aff0968ee402f2c92a992b9b"},{"fixed":"6611f78ec3fd4b33a00bfda20725b254a22979f6"},{"fixed":"f222bb8c30cf5699c560b29179ff2bddcac1f950"},{"fixed":"90af7fde083e1b22c349c3a8b1626728e44e474c"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98227.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.0"},{"fixed":"6.1.189"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.158"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.112"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.54"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98227.json"}}],"schema_version":"1.9.0"}