{"id":"CVE-2022-49686","summary":"usb: gadget: uvc: fix list double add in uvcg_video_pump","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: uvc: fix list double add in uvcg_video_pump\n\nA panic can occur if the endpoint becomes disabled and the\nuvcg_video_pump adds the request back to the req_free list after it has\nalready been queued to the endpoint. The endpoint complete will add the\nrequest back to the req_free list. Invalidate the local request handle\nonce it's been queued.\n\n\u003c6\u003e[  246.796704][T13726] configfs-gadget gadget: uvc: uvc_function_set_alt(1, 0)\n\u003c3\u003e[  246.797078][   T26] list_add double add: new=ffffff878bee5c40, prev=ffffff878bee5c40, next=ffffff878b0f0a90.\n\u003c6\u003e[  246.797213][   T26] ------------[ cut here ]------------\n\u003c2\u003e[  246.797224][   T26] kernel BUG at lib/list_debug.c:31!\n\u003c6\u003e[  246.807073][   T26] Call trace:\n\u003c6\u003e[  246.807180][   T26]  uvcg_video_pump+0x364/0x38c\n\u003c6\u003e[  246.807366][   T26]  process_one_work+0x2a4/0x544\n\u003c6\u003e[  246.807394][   T26]  worker_thread+0x350/0x784\n\u003c6\u003e[  246.807442][   T26]  kthread+0x2ac/0x320","modified":"2026-03-20T12:24:44.632706Z","published":"2025-02-26T02:24:12.624Z","related":["SUSE-SU-2025:1176-1","SUSE-SU-2025:1241-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49686.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/96163f835e65f8c9897487fac965819f0651d671"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d95ac8b920de1d39525fadc408ce675697626ca6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49686.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49686"},{"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":"f9897ec0f6d34e8b2bc2f4c8ab8789351090f3d2"},{"fixed":"d95ac8b920de1d39525fadc408ce675697626ca6"},{"fixed":"96163f835e65f8c9897487fac965819f0651d671"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49686.json"}}],"schema_version":"1.7.5"}