Use-after-free in Linux kernel - CVE-2026-80770
Published: September 5, 2026
Vulnerability identifier: #VU147151
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80770
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an attacker with physical access to trigger a use-after-free.
The vulnerability exists due to improper device I/O cleanup in nintendo_hid_probe() when probe initialization fails after device I/O has started. An attacker with physical access can provide input reports during error handling to trigger a use-after-free.
Affected software
Linux kernel
How to mitigate CVE-2026-80770
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/03a84f9f88b42cd49752ec0259922b67e4b88598
- https://git.kernel.org/stable/c/13a3edf96568a0b7aacadea07c2adec53ac8f630
- https://git.kernel.org/stable/c/1f74d3bff6fe04a64e02ab3661d2e0d554565aa6
- https://git.kernel.org/stable/c/2e0d98dc8a6dea5fc2b72bf66e0dcbd5488644b4
- https://git.kernel.org/stable/c/5efcd7bbfaaec67d137c99aa0940fa34375db27f
- https://git.kernel.org/stable/c/c023443f0e6cfd257846b6515c93c1ea08026593
- https://git.kernel.org/stable/c/c2f3d51c7f5222f5b51e0c90f02258d82e1b44dd