{ "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" } } } }