CVE-2026-80568

Summary

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).

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3a762dbd5347514c3cb2ac756a92a3d1c7646a2d < 7e994a9ecc0b49ad2fe63da9c92a8aca8a6614afaffected
LinuxLinux3a762dbd5347514c3cb2ac756a92a3d1c7646a2d < fa69f93015becf3729716de2199b58540aa99672affected
LinuxLinux3a762dbd5347514c3cb2ac756a92a3d1c7646a2d < 493ba8e794729649689438edba72337111303cc4affected
LinuxLinux3a762dbd5347514c3cb2ac756a92a3d1c7646a2d < 1d718f1461766e9f00a8dbeb4f13f1b1c19d90acaffected
LinuxLinux3a762dbd5347514c3cb2ac756a92a3d1c7646a2d < cae79513f9115c350561b16f36adcb47c9bfff12affected
LinuxLinux3a762dbd5347514c3cb2ac756a92a3d1c7646a2d < ff0849705d29277fd1f6fc6596674b9308724fb2affected
LinuxLinux3a762dbd5347514c3cb2ac756a92a3d1c7646a2d < ddd9a53faf3b65e5920cb802cb1db6f4615bdfefaffected
LinuxLinux3a762dbd5347514c3cb2ac756a92a3d1c7646a2d < fbfd76746adc16d64be29ff113f673b70bc3f5c2affected
LinuxLinux4.9affected
LinuxLinux0 < 4.9unaffected
LinuxLinux5.10.266 <= 5.10.*unaffected
LinuxLinux5.15.217 <= 5.15.*unaffected
LinuxLinux6.1.184 <= 6.1.*unaffected
LinuxLinux6.6.153 <= 6.6.*unaffected
LinuxLinux6.12.105 <= 6.12.*unaffected
LinuxLinux6.18.46 <= 6.18.*unaffected
LinuxLinux7.1.10 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References