CVEvulnerability
CVE-2026-80568
7.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-26
- Last modified
- 2026-08-27
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
Input: synaptics-rmi4 - block s_input when F54 queue is busy
Changing the input (diagnostic report type) mid-stream changes the
report size. Since V4L2 buffers are allocated based on the size at
stream start, changing the input while streaming could lead to a
heap buffer overflow if the new size is larger than the allocated
buffers.
Prevent this by blocking VIDIOC_S_INPUT with -EBUSY if the V4L2 queue
is busy (streaming).
References
- https://git.kernel.org/stable/c/1d718f1461766e9f00a8dbeb4f13f1b1c19d90ac git.kernel.org
- https://git.kernel.org/stable/c/493ba8e794729649689438edba72337111303cc4 git.kernel.org
- https://git.kernel.org/stable/c/7e994a9ecc0b49ad2fe63da9c92a8aca8a6614af git.kernel.org
- https://git.kernel.org/stable/c/cae79513f9115c350561b16f36adcb47c9bfff12 git.kernel.org
- https://git.kernel.org/stable/c/ddd9a53faf3b65e5920cb802cb1db6f4615bdfef git.kernel.org
- https://git.kernel.org/stable/c/fa69f93015becf3729716de2199b58540aa99672 git.kernel.org
- https://git.kernel.org/stable/c/fbfd76746adc16d64be29ff113f673b70bc3f5c2 git.kernel.org
- https://git.kernel.org/stable/c/ff0849705d29277fd1f6fc6596674b9308724fb2 git.kernel.org