NULL pointer dereference in Linux kernel - CVE-2026-43148
Published: May 7, 2026
Vulnerability identifier: #VU130590
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-2026-43148
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 parse_thread_groups() when parsing device tree thread group properties. A local user can trigger allocation failure conditions to cause a denial of service.
How to mitigate CVE-2026-43148
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/1de31dba19c3cd0c1caf388a286b46df638f0b91
- https://git.kernel.org/stable/c/33c1c6d8a28a2761ac74b0380b2563cf546c2a3a
- https://git.kernel.org/stable/c/8b221db0b7d24675e465e98d9326d298025a4e8d
- https://git.kernel.org/stable/c/9b85c8f624b0f8cf9b932f5a65dacd56a1f47a72
- https://git.kernel.org/stable/c/9d0ca11258e7b452653d04310addfec1753de1a2
- https://git.kernel.org/stable/c/b265e53d9adfbb5751713185843f7188aa9dd066
- https://git.kernel.org/stable/c/ca46d2092f307385a7acfb42632056570d6dbbbc