CVE-2026-80568

high

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/ff0849705d29277fd1f6fc6596674b9308724fb2

https://git.kernel.org/stable/c/fbfd76746adc16d64be29ff113f673b70bc3f5c2

https://git.kernel.org/stable/c/fa69f93015becf3729716de2199b58540aa99672

https://git.kernel.org/stable/c/ddd9a53faf3b65e5920cb802cb1db6f4615bdfef

https://git.kernel.org/stable/c/cae79513f9115c350561b16f36adcb47c9bfff12

https://git.kernel.org/stable/c/7e994a9ecc0b49ad2fe63da9c92a8aca8a6614af

https://git.kernel.org/stable/c/493ba8e794729649689438edba72337111303cc4

https://git.kernel.org/stable/c/1d718f1461766e9f00a8dbeb4f13f1b1c19d90ac

Details

Source: Mitre, NVD

Published: 2026-08-26

Updated: 2026-08-27

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00133