CVE-2026-90189 | Linux Kernel up to 7.2.5 null_blk block/genhd.c null_init use after free

September 17, 2026 Yanac

A vulnerability classified as critical was found in Linux Kernel up to 6.1.187/6.6.156/6.12.109/6.18.51/7.2.5. This affects the function null_init of the file block/genhd.c of the component null_blk. Such manipulation leads to use after free.

This vulnerability is referenced as CVE-2026-90189. The attack can only be performed from a local environment. No exploit is available.

Upgrading the affected component is advised.VulDB Recent EntriesRead More