{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-99038","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.387Z","datePublished":"2026-10-23T12:21:56.333Z","dateUpdated":"2026-10-30T12:41:11.555Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-30T12:41:11.555Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/memstick/host/rtsx_usb_ms.c"],"versions":[{"version":"99451dceeb5fdd789f0a2eeb3ee029e80d2ccc40","lessThan":"c48245ef696e590e92cbfb622625642bec8dbbad","status":"affected","versionType":"git"},{"version":"99451dceeb5fdd789f0a2eeb3ee029e80d2ccc40","lessThan":"602a00d75d2ab079c9ab7c0d7b56ae436e604148","status":"affected","versionType":"git"},{"version":"99451dceeb5fdd789f0a2eeb3ee029e80d2ccc40","lessThan":"8e4eda6e1b00624820fea1d35508d7422330ee25","status":"affected","versionType":"git"},{"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"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/memstick/host/rtsx_usb_ms.c"],"versions":[{"version":"3.16","status":"affected"},{"version":"0","lessThan":"3.16","status":"unaffected","versionType":"semver"},{"version":"5.10.273","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.224","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.191","lessThanOrEqual":"6.1.*","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"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"7.2.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c48245ef696e590e92cbfb622625642bec8dbbad"},{"url":"https://git.kernel.org/stable/c/602a00d75d2ab079c9ab7c0d7b56ae436e604148"},{"url":"https://git.kernel.org/stable/c/8e4eda6e1b00624820fea1d35508d7422330ee25"},{"url":"https://git.kernel.org/stable/c/f2c181e1d58e911804e14543b2f1cc6b23a0d4d6"},{"url":"https://git.kernel.org/stable/c/5b599e28aeb3684772aef64f46cc6f25f4c67128"},{"url":"https://git.kernel.org/stable/c/d7e811c3a49cd5cff529c157df886719e09370ec"},{"url":"https://git.kernel.org/stable/c/5616da0f92339328fa1472876df51555e15ad340"},{"url":"https://git.kernel.org/stable/c/c96ca94425b076dc398d929366e378d1e22ec794"}],"title":"memstick: rtsx_usb_ms: complete requests after eject instead of dropping them","x_generator":{"engine":"bippy-1.2.0"}}}}