{"id":"CVE-2026-80574","summary":"Input: focaltech - fix array out-of-bounds in focaltech_process_rel_packet","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: focaltech - fix array out-of-bounds in focaltech_process_rel_packet\n\nMake finger2 (and also finger1) unsigned, so that if the finger index in\nthe packet is 0 then subtracting 1 creates an array index which overflows\nabove the existing check for FOC_MAX_FINGERS, as the existing comment says\nit should, instead of writing to state-\u003efingers[-1].","modified":"2026-08-28T03:47:28.913682237Z","published":"2026-08-26T14:37:34.353Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80574.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/063b4c6a6f3fc01bca085c442000c9c100fdbd93"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1842e47126816e56d30c4f856f9854fd7831066c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/296736076b3fd078742651c719555a488624023a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6f6d5fe29efdf5001bc146fc292e6592cace93eb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/81b07470cb2937ceb74b00be88151582a322433b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/83c265bfc084d77e2171d4b67362150ab38c935b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bb502d79acb9ac1e0a77fa8bc7b7b4729140b11f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ca92c98b806839c108995b2bbff7061515bdfb53"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80574.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80574"},{"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":"05be1d079ec0b3691783e4384b1ada82149ff7d2"},{"fixed":"063b4c6a6f3fc01bca085c442000c9c100fdbd93"},{"fixed":"bb502d79acb9ac1e0a77fa8bc7b7b4729140b11f"},{"fixed":"ca92c98b806839c108995b2bbff7061515bdfb53"},{"fixed":"81b07470cb2937ceb74b00be88151582a322433b"},{"fixed":"6f6d5fe29efdf5001bc146fc292e6592cace93eb"},{"fixed":"83c265bfc084d77e2171d4b67362150ab38c935b"},{"fixed":"1842e47126816e56d30c4f856f9854fd7831066c"},{"fixed":"296736076b3fd078742651c719555a488624023a"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80574.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"5.10.266"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.217"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.184"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.153"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.105"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.46"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.10"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80574.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}