CVEvulnerability
CVE-2026-80574
8.4 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-26
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.4 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
Input: focaltech - fix array out-of-bounds in focaltech_process_rel_packet
Make finger2 (and also finger1) unsigned, so that if the finger index in
the packet is 0 then subtracting 1 creates an array index which overflows
above the existing check for FOC_MAX_FINGERS, as the existing comment says
it should, instead of writing to state->fingers[-1].
References
- https://git.kernel.org/stable/c/063b4c6a6f3fc01bca085c442000c9c100fdbd93 git.kernel.org
- https://git.kernel.org/stable/c/1842e47126816e56d30c4f856f9854fd7831066c git.kernel.org
- https://git.kernel.org/stable/c/296736076b3fd078742651c719555a488624023a git.kernel.org
- https://git.kernel.org/stable/c/6f6d5fe29efdf5001bc146fc292e6592cace93eb git.kernel.org
- https://git.kernel.org/stable/c/81b07470cb2937ceb74b00be88151582a322433b git.kernel.org
- https://git.kernel.org/stable/c/83c265bfc084d77e2171d4b67362150ab38c935b git.kernel.org
- https://git.kernel.org/stable/c/bb502d79acb9ac1e0a77fa8bc7b7b4729140b11f git.kernel.org
- https://git.kernel.org/stable/c/ca92c98b806839c108995b2bbff7061515bdfb53 git.kernel.org