Improper locking in Linux kernel - CVE-2026-31687
Published: April 27, 2026
Vulnerability identifier: #VU128243
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-31687
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper locking in omap_gpio_probe() and omap_mpuio_driver registration when probing the gpio omap driver. A local user can trigger driver probing to cause a denial of service.
The issue can lead to a potential deadlock condition in the driver core.
How to mitigate CVE-2026-31687
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/03db4dc9ad6eb91e640b517e00373ce877682854
- https://git.kernel.org/stable/c/1c04c3a4de8d4bcb9202f94c44f26c57c2572308
- https://git.kernel.org/stable/c/2211d77892913804d16c28c7415b82804ab1e54c
- https://git.kernel.org/stable/c/32f08c3ddd6dda6cbb6c9d715de10f21dccde50f
- https://git.kernel.org/stable/c/53a76425e0764421ba93bb9045d2e454667d5687
- https://git.kernel.org/stable/c/57bcd3feffa79544c73a1a1872472389a391cc79
- https://git.kernel.org/stable/c/673dafb9a86349a12a93151fd467625614dc7e12
- https://git.kernel.org/stable/c/730e5ebff40c852e3ea57b71bf02a4b89c69435f
- https://git.kernel.org/stable/c/86588916e1887a5edb8a9161cd7ae81e47a7ed25
- https://git.kernel.org/stable/c/a29215961d833f4de33a09c3964d31ebc6083033
- https://git.kernel.org/stable/c/a7fa9460b86f810913b6779461d0448e7c11214c