Input: synaptics-rmi4 - block s_input when F54 queue is busy
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
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).
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.266, 5.15.217, 6.1.184, 6.6.153, 6.12.105, 6.18.46, 7.1.10, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-80568
- 2026-10-03 Alias added: GHSA-89jp-7748-46r4
References
Other 8
- https://git.kernel.org/stable/c/7e994a9ecc0b49ad2fe63da9c92a8aca8a6614af
- https://git.kernel.org/stable/c/fa69f93015becf3729716de2199b58540aa99672
- https://git.kernel.org/stable/c/493ba8e794729649689438edba72337111303cc4
- https://git.kernel.org/stable/c/1d718f1461766e9f00a8dbeb4f13f1b1c19d90ac
- https://git.kernel.org/stable/c/cae79513f9115c350561b16f36adcb47c9bfff12
- https://git.kernel.org/stable/c/ff0849705d29277fd1f6fc6596674b9308724fb2
- https://git.kernel.org/stable/c/ddd9a53faf3b65e5920cb802cb1db6f4615bdfef
- https://git.kernel.org/stable/c/fbfd76746adc16d64be29ff113f673b70bc3f5c2
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Sources
- CVE-2026-80568 · CVE Program
- CVE-2026-80568 · NVD
- FIRST EPSS
- GHSA-89jp-7748-46r4 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-80568 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences