CVE-2026-80771: Linux kernel · HID: nintendo: register input device after capabilities are set
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 14:05 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 4 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
The described fix involves modifying the Linux kernel source to delay input device registration until after all capabilities are set. Users should monitor official Linux kernel advisories and update to a kernel version that includes this fix once available.
Description
In the Linux kernel, the following vulnerability has been resolved: HID: nintendo: register input device after capabilities are set input_register_device() exposes the device to userspace immediately. In joycon_input_create() it was called before joycon_config_rumble() configures the FF_RUMBLE capability and the memless force-feedback device, so a concurrent EVIOCSFF could dereference a NULL dev->ff. Registering early also means the initial udev event lacks button and axis information, which can make input managers ignore the device. Move input_register_device() to the end of joycon_input_create(), after all capabilities, the IMU input device and the force-feedback callbacks have been configured.
References
- nvd.nist.gov/vuln/detail/CVE-2026-80771 (opens in a new tab)
- git.kernel.org/stable/c/268679f501386ad46405d42c2bcf89384cb5e256 (opens in a new tab)
- git.kernel.org/stable/c/27dc4b8eadac73b3c3cc526c8547d8b4ae8528be (opens in a new tab)
- git.kernel.org/stable/c/3288bec1a21d582b504344380139cdc0e88ebe4d (opens in a new tab)
- git.kernel.org/stable/c/a9fc7547f911ada09da33c5e204e5acda38e765a (opens in a new tab)
- git.kernel.org/stable/c/d723bc1fe2e72b9252234e94c11af644ec477bf7 (opens in a new tab)
- ubuntu.com/security/CVE-2026-80771 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-80771 (opens in a new tab)
- git.kernel.org/linus/d723bc1fe2e72b9252234e94c11af644ec477bf7 (opens in a new tab)