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).

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/1d718f1461766e9f00a8dbeb4f13f1b1c19d90ac
https://git.kernel.org/stable/c/493ba8e794729649689438edba72337111303cc4
https://git.kernel.org/stable/c/7e994a9ecc0b49ad2fe63da9c92a8aca8a6614af
https://git.kernel.org/stable/c/cae79513f9115c350561b16f36adcb47c9bfff12
https://git.kernel.org/stable/c/ddd9a53faf3b65e5920cb802cb1db6f4615bdfef
https://git.kernel.org/stable/c/fa69f93015becf3729716de2199b58540aa99672
https://git.kernel.org/stable/c/fbfd76746adc16d64be29ff113f673b70bc3f5c2
https://git.kernel.org/stable/c/ff0849705d29277fd1f6fc6596674b9308724fb2

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-26 15:17

Updated : 2026-08-27 06:17

NVD link : CVE-2026-80568

Mitre link : CVE-2026-80568

CVE.ORG link : CVE-2026-80568

JSON object : View

Products Affected

No product.

CWE

No CWE.

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Since V4L2 buffers are allocated based on the size at\nstream start, changing the input while streaming could lead to a\nheap buffer overflow if the new size is larger than the allocated\nbuffers.\n\nPrevent this by blocking VIDIOC_S_INPUT with -EBUSY if the V4L2 queue\nis busy (streaming)."}], "lastModified": "2026-08-27T06:17:41.767", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}