CVE-2026-63804 | Linux Kernel up to 6.6.143/6.12.94/6.18.37/7.1.2 Gfs2 gfs2_qd_dealloc qd_sbd use after free

July 19, 2026 Yanac

A vulnerability was found in Linux Kernel up to 6.6.143/6.12.94/6.18.37/7.1.2. It has been rated as critical. Affected by this vulnerability is the function gfs2_qd_dealloc of the component Gfs2. This manipulation of the argument qd_sbd causes use after free.

The identification of this vulnerability is CVE-2026-63804. The attack can only be executed locally. There is no exploit available.VulDB Recent EntriesRead More