{"id":"CVE-2026-74437","summary":"media: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work\n\nIf a UVC camera has an asynchronous control, uvc_status_stop may be\ncalled from async_ctrl.work:\n\nuvc_ctrl_status_event_work()\n    uvc_ctrl_status_event()\n        uvc_ctrl_clear_handle()\n\t    uvc_pm_put()\n\t        uvc_status_put()\n\t\t    uvc_status_stop()\n\t\t        cancel_work_sync()\n\nThis will cause a deadlock, since cancel_work_sync will wait for\nuvc_ctrl_status_event_work to complete before returning.\n\nFix this by returning early from uvc_status_stop if we are currently in\nthe work function. flush_status now remains false until uvc_status_start\nis called again, ensuring that uvc_ctrl_status_event_work won't resubmit\nthe URB.","modified":"2026-08-18T03:31:22.042185484Z","published":"2026-08-15T05:59:35.297Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74437.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3659deaf7bf690510899a73906b772740d94342c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7f6c5fe1633272c926361b73d83dfc6ae01b1504"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74437.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74437"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a32d9c41bdb86e09ce731aa5fd3add89ac2103a5"},{"fixed":"3659deaf7bf690510899a73906b772740d94342c"},{"fixed":"7f6c5fe1633272c926361b73d83dfc6ae01b1504"},{"fixed":"6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74437.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.16.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74437.json"}}],"schema_version":"1.9.0"}