NULL pointer dereference in Linux kernel - CVE-2026-43159
Published: May 7, 2026
Vulnerability identifier: #VU130584
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-2026-43159
CWE-ID: CWE-476
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 a null pointer dereference in find_network when freeing network data. A local user can trigger the vulnerable code path to cause a denial of service.
How to mitigate CVE-2026-43159
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/04d24a3654ed195485bc6346a9ef326fc494a34e
- https://git.kernel.org/stable/c/1aa9c59f4b96a9056c02476c7ca89e96d15e0645
- https://git.kernel.org/stable/c/3b1d0c9a1f78836d0bce6fdd37f596f22c19b03e
- https://git.kernel.org/stable/c/41460a19654c32d39fd0e3a3671cd8d4b7b8479f
- https://git.kernel.org/stable/c/48b4dec3a8bfd667cd0cd767eaf511176193e9a1
- https://git.kernel.org/stable/c/677490a6bd4c63acdf6f48e4aaf6a23d7e6a446f
- https://git.kernel.org/stable/c/7fa16ffed2b9d9d44940990c1f31159770769aeb
- https://git.kernel.org/stable/c/cc3f83b6fb3773ad943365d1cd774b4ec050332e