{"id":"CVE-2026-80572","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80572","summary":"Input: byd - synchronize timer deletion before freeing private data","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: byd - synchronize timer deletion before freeing private data\n\nbyd_disconnect() uses timer_delete() before freeing the driver's private\ndata.  This does not wait for a running byd_clear_touch() callback, which\ndereferences the private data and its psmouse pointer.  A callback racing\nwith disconnect can therefore access the private data after it has been\nfreed.  The timer can also still be re-armed by byd_process_byte() while\nthe disconnect is in progress.\n\nUse timer_shutdown_sync() before freeing the private data: it waits for\na running callback and turns any later re-arm attempt into a no-op.","published":"2026-08-26T14:37:33.141Z","modified":"2026-08-28T03:47:28.905621740Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.1.185"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/28d984a66b9e14be74986167b6ad40b5e0daf19a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2e509ef60ee41a2da0deb062c262bb530143fb37"},{"type":"WEB","url":"https://git.kernel.org/stable/c/84b205297fa15f97510342221d8c9a0119711478"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8dbfd8e32a13e116790780ed0be82b5a05eb9916"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c83e79c0842ed29860648bcce5022ef0ba5001c6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ee944a706a18322b4a2599eebe8040a2994e928f"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80572.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80572"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-28T03:47:28.905621740Z"}}