Improper locking in Linux kernel - CVE-2026-43215
Published: May 7, 2026
Vulnerability identifier: #VU130513
CSH Severity: Low
CVSSv4.0: 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-2026-43215
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper locking in tcon fields when accessing connection data. A local user can trigger concurrent operations to cause a denial of service.
Remediation
Install security update from vendor's repository.
External links
- https://git.kernel.org/stable/c/3969db6b22e3d90d8c5f22ac1a7fe0350a94c136
- https://git.kernel.org/stable/c/601dd3b79769b38d30b693c40afdb2a4b7edf9d0
- https://git.kernel.org/stable/c/8c59eeeeffa1524ef57e173a89a1a3ff539888d5
- https://git.kernel.org/stable/c/953953abb66e52c224057ab91e404284fefeab62
- https://git.kernel.org/stable/c/96c4af418586ee9a6aab61738644366426e05316