CVE-2026-80754

Input: synaptics-rmi4 - fix F55 transmitter electrode count typo

State: Published
Severity: 7.8 High
Published: Sep 3, 2026
Updated: Oct 16, 2026
Reserved: Aug 26, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

Input: synaptics-rmi4 - fix F55 transmitter electrode count typo

During F55 sensor detection, the transmitter (TX) electrode count was incorrectly assigned the value of the receiver (RX) electrode count due to copy-paste typos.

This incorrect value was then propagated to the driver data and used by F54 to determine the diagnostics report size. On devices with more RX than TX electrodes, this inflated the perceived TX count, leading to incorrect report size calculations and potential out-of-bounds buffer accesses.

Fix the typos by correctly assigning the TX electrode counts.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	6adba43fd222ea362c36296d1a6897c2e28fdc8e to before 6484e00d6778fdf2209cd75940bc3902b276457fAffected 6adba43fd222ea362c36296d1a6897c2e28fdc8e to before db4e20265ebda729610ca5cf45ca9437462c3f36Affected 6adba43fd222ea362c36296d1a6897c2e28fdc8e to before a6d9646e77da7cab2dff7043a8e9f75e23b836bcAffected 6adba43fd222ea362c36296d1a6897c2e28fdc8e to before 0739c65e799d4a93fe573ed23255a71fcfcc5438Affected 6adba43fd222ea362c36296d1a6897c2e28fdc8e to before 9759502f5cd71805923457f183ae5b9533e20c7bAffected 6adba43fd222ea362c36296d1a6897c2e28fdc8e to before 9b184c8337c6e12df129399007735a7fbcbbcb7bAffected 6adba43fd222ea362c36296d1a6897c2e28fdc8e to before a81cafe3c3c2f8494063385a7b0ea7ff407bf19fAffected 6adba43fd222ea362c36296d1a6897c2e28fdc8e to before 6058f0fea10f3caf63a435677358d1b8e9325114Affected
LinuxLinux	4.10Affected before 4.10Not affected 5.10.266 through 5.10.Not affected 5.15.217 through 5.15.Not affected 6.1.184 through 6.1.Not affected 6.6.153 through 6.6.Not affected 6.12.105 through 6.12.Not affected 6.18.46 through 6.18.Not affected 7.1.10 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

6adba43fd222ea362c36296d1a6897c2e28fdc8e to before 6484e00d6778fdf2209cd75940bc3902b276457fAffected
6adba43fd222ea362c36296d1a6897c2e28fdc8e to before db4e20265ebda729610ca5cf45ca9437462c3f36Affected
6adba43fd222ea362c36296d1a6897c2e28fdc8e to before a6d9646e77da7cab2dff7043a8e9f75e23b836bcAffected
6adba43fd222ea362c36296d1a6897c2e28fdc8e to before 0739c65e799d4a93fe573ed23255a71fcfcc5438Affected
6adba43fd222ea362c36296d1a6897c2e28fdc8e to before 9759502f5cd71805923457f183ae5b9533e20c7bAffected
6adba43fd222ea362c36296d1a6897c2e28fdc8e to before 9b184c8337c6e12df129399007735a7fbcbbcb7bAffected
6adba43fd222ea362c36296d1a6897c2e28fdc8e to before a81cafe3c3c2f8494063385a7b0ea7ff407bf19fAffected
6adba43fd222ea362c36296d1a6897c2e28fdc8e to before 6058f0fea10f3caf63a435677358d1b8e9325114Affected

LinuxLinux

4.10Affected
before 4.10Not affected
5.10.266 through 5.10.*Not affected
5.15.217 through 5.15.*Not affected
6.1.184 through 6.1.*Not affected
6.6.153 through 6.6.*Not affected
6.12.105 through 6.12.*Not affected
6.18.46 through 6.18.*Not affected
7.1.10 through 7.1.*Not affected
7.2 and laterNot affected

References

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