{"id":"CVE-2026-80570","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80570","summary":"Input: synaptics-rmi4 - zero report size on F54 work error","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: synaptics-rmi4 - zero report size on F54 work error\n\nIn rmi_f54_work(), if an error occurs during report request or command\nverification, the code jumped directly to the 'error' label, bypassing\nthe 'abort' label where f54->report_size was normally zeroed out.\n\nThis left f54->report_size containing its previous successful payload\nsize. If a user then altered the V4L2 format to a smaller size, and a\nsubsequent run failed, rmi_f54_buffer_queue() would copy the stale,\nlarger payload size into the shrunken V4L2 buffer, causing a heap\nbuffer overflow.\n\nFix this by merging the 'abort' and 'error' labels into a single 'out'\nexit path, and ensuring that f54->report_size is always set to 0 on\nfailure by checking for error and zeroing the local report_size first.","published":"2026-08-26T14:37:31.940Z","modified":"2026-08-28T03:47:29.230136777Z","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":{"score":0.00134,"percentile":0.03224,"asOf":"2026-08-27"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"5.10.266"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/62079c17ec07d64362bec367ee7a525b0dbf6bf9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/77749685e55da19b187df215b5da4080842ca5c7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/79521ed3cc9ea48476666ccacf45ecd6954b29a4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/88c8174d72900d77fbdf2f527d54b6ff2da876a8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b28593a05afdd812b590e1045b5bd862a5869225"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c669c64ab71afa7b467c4d7e18f6a05e96b97a1f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c6cfda79f26c69e97db9805808c3b44d02227b4b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dc76c3c8e8ad09362b8c1561f3928288c15cba2e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80570.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80570"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-28T03:47:29.230136777Z"}}