#VU124576 NULL Pointer Dereference in Linux kernel - CVE-2026-23285
Published: March 25, 2026
Vulnerability identifier: #VU124576
Vulnerability risk: 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-2026-23285
CWE-ID: CWE-476
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 a null pointer dereference in the DRBD (Distributed Replicated Block Device) component when handling a local read error. A local user can trigger a specially crafted I/O operation to cause a denial of service.
Exploitation requires access to the DRBD subsystem and the ability to initiate block device I/O operations.
Remediation
Install security update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0d195d3b205ca90db30d70d09d7bb6909aac178f
- https://git.kernel.org/stable/c/1e906c08594c8f9a6a524f38ede2c4e051196106
- https://git.kernel.org/stable/c/4e8935053ba389ae8d6685c10854d8021931bd89
- https://git.kernel.org/stable/c/6f1d1614f841d91a4169db65812ffd1271735b42
- https://git.kernel.org/stable/c/91df51d2df0ca4fd3281f73626341563d64a98a5