{"id":"CVE-2026-80574","revision":"29d9d323e4c64009bc366c0a93b4ac98","records":[{"revision":"29d9d323e4c64009bc366c0a93b4ac98","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-80574","aliases":[],"title":"Input: focaltech - fix array out-of-bounds in focaltech_process_rel_packet","description":"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->fingers[-1].","state":0,"publishedAt":"2026-08-26T14:37:34.353+00:00","modifiedAt":"2026-10-16T19:26:27.544+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/input/mouse/focaltech.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"05be1d079ec0b3691783e4384b1ada82149ff7d2\",\n                            \"lessThan\": \"063b4c6a6f3fc01bca085c442000c9c100fdbd93\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"05be1d079ec0b3691783e4384b1ada82149ff7d2\",\n                            \"lessThan\": \"bb502d79acb9ac1e0a77fa8bc7b7b4729140b11f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"05be1d079ec0b3691783e4384b1ada82149ff7d2\",\n                            \"lessThan\": \"ca92c98b806839c108995b2bbff7061515bdfb53\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"05be1d079ec0b3691783e4384b1ada82149ff7d2\",\n                            \"lessThan\": \"81b07470cb2937ceb74b00be88151582a322433b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"05be1d079ec0b3691783e4384b1ada82149ff7d2\",\n                            \"lessThan\": \"6f6d5fe29efdf5001bc146fc292e6592cace93eb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"05be1d079ec0b3691783e4384b1ada82149ff7d2\",\n                            \"lessThan\": \"83c265bfc084d77e2171d4b67362150ab38c935b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"05be1d079ec0b3691783e4384b1ada82149ff7d2\",\n                            \"lessThan\": \"1842e47126816e56d30c4f856f9854fd7831066c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"05be1d079ec0b3691783e4384b1ada82149ff7d2\",\n                            \"lessThan\": \"296736076b3fd078742651c719555a488624023a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/input/mouse/focaltech.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.266\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.217\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.184\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.153\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.105\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.46\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.10\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.4,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/063b4c6a6f3fc01bca085c442000c9c100fdbd93","https://git.kernel.org/stable/c/bb502d79acb9ac1e0a77fa8bc7b7b4729140b11f","https://git.kernel.org/stable/c/ca92c98b806839c108995b2bbff7061515bdfb53","https://git.kernel.org/stable/c/81b07470cb2937ceb74b00be88151582a322433b","https://git.kernel.org/stable/c/6f6d5fe29efdf5001bc146fc292e6592cace93eb","https://git.kernel.org/stable/c/83c265bfc084d77e2171d4b67362150ab38c935b","https://git.kernel.org/stable/c/1842e47126816e56d30c4f856f9854fd7831066c","https://git.kernel.org/stable/c/296736076b3fd078742651c719555a488624023a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80574","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-80574","identifiers":["CVE-2026-80574"]},"retained":false,"historicalAffected":[]}],"coverage":[]}