{"schema":"threatline.record/2","record":{"id":"CVE-2026-99038","aliases":[],"summary":"memstick: rtsx_usb_ms: complete requests after eject instead of dropping them","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmemstick: rtsx_usb_ms: complete requests after eject instead of dropping them\n\nmemstick_check() can pass its host->removing check just before\nrtsx_usb_ms_drv_remove() sets eject/removing. Its next request is then\nsilently dropped: rtsx_usb_ms_request() skips schedule_work() once eject\nis set, and drv_remove's cancel_work_sync() can also cancel a queued\nhandle_req before it picks the request up. Nobody completes\ncard->mrq_complete.\n\nOnce memstick core waits for requests without a timeout (\"memstick: core:\nwait for request completion before freeing card\"), this hangs removal:\nmemstick_check() never returns and memstick_remove_host() blocks in\nflush_workqueue():\n\n  INFO: task kworker/u10:3:65 blocked for more than 20 seconds.\n  Workqueue: kmemstick memstick_check\n   __wait_for_common\n   memstick_check\n\n  INFO: task kworker/1:1:33 blocked for more than 20 seconds.\n  Workqueue: usb_hub_wq hub_event\n   __flush_workqueue\n   memstick_remove_host\n   rtsx_usb_ms_drv_remove\n\nNever drop a request. rtsx_usb_ms_request() always schedules handle_req,\nand handle_req fails requests with -ENOMEDIUM once eject is set, without\ntouching the device. drv_remove flushes handle_req instead of cancelling\nit, and cancels it only after memstick_remove_host(), when no new\nrequest can arrive, so it cannot run on a freed host.\n\nThe host_mutex drain in drv_remove is removed: handle_req always leaves\nhost->req NULL when it finishes, so the drain never had anything to do,\nand it would now race with handle_req.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99038","source_modified_at":"2026-10-23T12:21:56.333Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Linux","vendor":"Linux","versions":[{"version":"99451dceeb5fdd789f0a2eeb3ee029e80d2ccc40","lessThan":"f2c181e1d58e911804e14543b2f1cc6b23a0d4d6","status":"affected","versionType":"git"},{"version":"99451dceeb5fdd789f0a2eeb3ee029e80d2ccc40","lessThan":"5b599e28aeb3684772aef64f46cc6f25f4c67128","status":"affected","versionType":"git"},{"version":"99451dceeb5fdd789f0a2eeb3ee029e80d2ccc40","lessThan":"d7e811c3a49cd5cff529c157df886719e09370ec","status":"affected","versionType":"git"},{"version":"99451dceeb5fdd789f0a2eeb3ee029e80d2ccc40","lessThan":"5616da0f92339328fa1472876df51555e15ad340","status":"affected","versionType":"git"},{"version":"99451dceeb5fdd789f0a2eeb3ee029e80d2ccc40","lessThan":"c96ca94425b076dc398d929366e378d1e22ec794","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99038","source_modified_at":"2026-10-23T12:21:56.333Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Linux","vendor":"Linux","versions":[{"version":"3.16","status":"affected"},{"version":"0","lessThan":"3.16","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.57","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.11","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99038","source_modified_at":"2026-10-23T12:21:56.333Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Linux","ecosystem":null},"version":"5b599e28aeb3684772aef64f46cc6f25f4c67128","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99038","source_modified_at":"2026-10-23T12:21:56.333Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Linux","ecosystem":null},"version":"5616da0f92339328fa1472876df51555e15ad340","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-23T12:21:56.333Z","modified_at":"2026-10-23T12:21:56.333Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-99038","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T12:21:56.333Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/f2c181e1d58e911804e14543b2f1cc6b23a0d4d6"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5b599e28aeb3684772aef64f46cc6f25f4c67128"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/d7e811c3a49cd5cff529c157df886719e09370ec"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5616da0f92339328fa1472876df51555e15ad340"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c96ca94425b076dc398d929366e378d1e22ec794"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-23T12:21:56.333Z","content_hash":"cc859c2d2de7c2d5704e13942dd7e150adb0cc76f00cc894c7e44a6a0e512a45"}}