CVE-2026-80754: Linux kernel · Input: synaptics-rmi4 – fix F55 transmitter electrode count typo
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 3 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available and the vulnerability has been resolved by correcting the electrode count assignments in the synaptics-rmi4 driver. Users should update their Linux kernel to a version that includes this fix. Since no specific patch links or affected versions are provided, check the vendor or Linux kernel release notes for the exact fixed versions.
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.
References
- nvd.nist.gov/vuln/detail/CVE-2026-80754 (opens in a new tab)
- git.kernel.org/stable/c/0739c65e799d4a93fe573ed23255a71fcfcc5438 (opens in a new tab)
- git.kernel.org/stable/c/6058f0fea10f3caf63a435677358d1b8e9325114 (opens in a new tab)
- git.kernel.org/stable/c/6484e00d6778fdf2209cd75940bc3902b276457f (opens in a new tab)
- git.kernel.org/stable/c/9759502f5cd71805923457f183ae5b9533e20c7b (opens in a new tab)
- git.kernel.org/stable/c/9b184c8337c6e12df129399007735a7fbcbbcb7b (opens in a new tab)
- git.kernel.org/stable/c/a6d9646e77da7cab2dff7043a8e9f75e23b836bc (opens in a new tab)
- git.kernel.org/stable/c/a81cafe3c3c2f8494063385a7b0ea7ff407bf19f (opens in a new tab)
- git.kernel.org/stable/c/db4e20265ebda729610ca5cf45ca9437462c3f36 (opens in a new tab)
- ubuntu.com/security/CVE-2026-80754 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-80754 (opens in a new tab)
- git.kernel.org/linus/6058f0fea10f3caf63a435677358d1b8e9325114 (opens in a new tab)