{"id":"CVE-2026-80574","title":"Input: focaltech - fix array out-of-bounds in focaltech_process_rel_packet","summary":"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 the…","severity":"high","cvss":8.4,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < 063b4c6a6f3fc01bca085c442000c9c100fdbd93","Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < bb502d79acb9ac1e0a77fa8bc7b7b4729140b11f","Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < ca92c98b806839c108995b2bbff7061515bdfb53","Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < 81b07470cb2937ceb74b00be88151582a322433b","Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < 6f6d5fe29efdf5001bc146fc292e6592cace93eb","Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < 83c265bfc084d77e2171d4b67362150ab38c935b","Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < 1842e47126816e56d30c4f856f9854fd7831066c","Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < 296736076b3fd078742651c719555a488624023a","Linux 4.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T19:17:38.877243Z"},"published":"2026-08-26","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:26:27.544Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80574","references":[{"url":"https://git.kernel.org/stable/c/063b4c6a6f3fc01bca085c442000c9c100fdbd93"},{"url":"https://git.kernel.org/stable/c/bb502d79acb9ac1e0a77fa8bc7b7b4729140b11f"},{"url":"https://git.kernel.org/stable/c/ca92c98b806839c108995b2bbff7061515bdfb53"},{"url":"https://git.kernel.org/stable/c/81b07470cb2937ceb74b00be88151582a322433b"},{"url":"https://git.kernel.org/stable/c/6f6d5fe29efdf5001bc146fc292e6592cace93eb"},{"url":"https://git.kernel.org/stable/c/83c265bfc084d77e2171d4b67362150ab38c935b"},{"url":"https://git.kernel.org/stable/c/1842e47126816e56d30c4f856f9854fd7831066c"},{"url":"https://git.kernel.org/stable/c/296736076b3fd078742651c719555a488624023a"}],"tags":["cve.org"],"epss":0.00132,"epssPercentile":0.02466,"ingestedAt":"2026-10-16T19:46:24.314Z","slug":"CVE-2026-80574","body":"## Overview\n\nIn 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].\n\n## Affected\n\n- `Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < 063b4c6a6f3fc01bca085c442000c9c100fdbd93`\n- `Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < bb502d79acb9ac1e0a77fa8bc7b7b4729140b11f`\n- `Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < ca92c98b806839c108995b2bbff7061515bdfb53`\n- `Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < 81b07470cb2937ceb74b00be88151582a322433b`\n- `Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < 6f6d5fe29efdf5001bc146fc292e6592cace93eb`\n- `Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < 83c265bfc084d77e2171d4b67362150ab38c935b`\n- `Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < 1842e47126816e56d30c4f856f9854fd7831066c`\n- `Linux >= 05be1d079ec0b3691783e4384b1ada82149ff7d2 < 296736076b3fd078742651c719555a488624023a`\n- `Linux 4.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":46.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}