Input: synaptics-rmi4 - zero report size on F54 work error
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 - zero report size on F54 work error In rmi_f54_work(), if an error occurs during report request or command verification, the code jumped directly to the 'error' label, bypassing the 'abort' label where f54->report_size was normally zeroed out. This left f54->report_size containing its previous successful payload size. If a user then altered the V4L2 format to a smaller size, and a subsequent run failed, rmi_f54_buffer_queue() would copy the stale, larger payload size into the shrunken V4L2 buffer, causing a heap buffer overflow. Fix this by merging the 'abort' and 'error' labels into a single 'out' exit path, and ensuring that f54->report_size is always set to 0 on failure by checking for error and zeroing the local report_size first.
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-2026-80570
- 2026-10-03 Alias added: GHSA-x279-789v-7qx8
References
Other 8
- https://git.kernel.org/stable/c/62079c17ec07d64362bec367ee7a525b0dbf6bf9
- https://git.kernel.org/stable/c/79521ed3cc9ea48476666ccacf45ecd6954b29a4
- https://git.kernel.org/stable/c/c669c64ab71afa7b467c4d7e18f6a05e96b97a1f
- https://git.kernel.org/stable/c/77749685e55da19b187df215b5da4080842ca5c7
- https://git.kernel.org/stable/c/c6cfda79f26c69e97db9805808c3b44d02227b4b
- https://git.kernel.org/stable/c/b28593a05afdd812b590e1045b5bd862a5869225
- https://git.kernel.org/stable/c/88c8174d72900d77fbdf2f527d54b6ff2da876a8
- https://git.kernel.org/stable/c/dc76c3c8e8ad09362b8c1561f3928288c15cba2e
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- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-80570 · CVE Program
- CVE-2026-80570 · NVD
- FIRST EPSS
- GHSA-x279-789v-7qx8 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-80570 · Red Hat security data · CC BY 4.0
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