CVE-2026-80570: Linux kernel · Input: synaptics-rmi4 – zero report size on F54 work error
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High : upgrade to 6.8.0-1036.39 soon.
Data as of 28 Oct 2026, 01:00 UTC
- Patch
- Available – fixed in 6.8.0-1036.39
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 26 Aug 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
Upgrade the Ubuntu linux-nvidia-tegra package to 6.8.0-1036.39.
Patches and advisories
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.
Description
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.
References
- ubuntu.com/security/CVE-2026-80570 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-80570 (opens in a new tab)
- git.kernel.org/stable/c/c669c64ab71afa7b467c4d7e18f6a05e96b97a1f (opens in a new tab)
- git.kernel.org/stable/c/b28593a05afdd812b590e1045b5bd862a5869225 (opens in a new tab)
- git.kernel.org/stable/c/88c8174d72900d77fbdf2f527d54b6ff2da876a8 (opens in a new tab)
- git.kernel.org/stable/c/dc76c3c8e8ad09362b8c1561f3928288c15cba2e (opens in a new tab)
- git.kernel.org/stable/c/62079c17ec07d64362bec367ee7a525b0dbf6bf9 (opens in a new tab)
- git.kernel.org/stable/c/c6cfda79f26c69e97db9805808c3b44d02227b4b (opens in a new tab)
- git.kernel.org/stable/c/79521ed3cc9ea48476666ccacf45ecd6954b29a4 (opens in a new tab)
- git.kernel.org/stable/c/77749685e55da19b187df215b5da4080842ca5c7 (opens in a new tab)
- ubuntu.com/security/notices/USN-8886-1 (opens in a new tab)