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CVE-2026-80568

HIGHCVSS 7.8/10

Last modified

CVE-2026-80568 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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)..

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).

Metrics

CVSS 3.1
7.8/10

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

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d, < 7e994a9ecc0b49ad2fe63da9c92a8aca8a6614af; >= 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d, < fa69f93015becf3729716de2199b58540aa99672; >= 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d, < 493ba8e794729649689438edba72337111303cc4; >= 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d, < 1d718f1461766e9f00a8dbeb4f13f1b1c19d90ac; >= 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d, < cae79513f9115c350561b16f36adcb47c9bfff12; >= 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d, < ff0849705d29277fd1f6fc6596674b9308724fb2; >= 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d, < ddd9a53faf3b65e5920cb802cb1db6f4615bdfef; >= 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d, < fbfd76746adc16d64be29ff113f673b70bc3f5c2
LinuxLinux4.9

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-80568?
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).
How severe is CVE-2026-80568?
CVE-2026-80568 has a CVSS score of 7.8/10 (HIGH severity).
How do I fix CVE-2026-80568?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST