CVE-2026-63796 | Linux Kernel up to 7.1.2 Ocfs2 fs/ocfs2/suballoc.c ocfs2_validate_gd_parent bg_size/bg_bits use after free

July 19, 2026 Yanac

A vulnerability was found in Linux Kernel up to 7.1.2. It has been rated as very critical. This affects the function ocfs2_validate_gd_parent of the file fs/ocfs2/suballoc.c of the component Ocfs2. The manipulation of the argument bg_size/bg_bits leads to use after free.

This vulnerability is referenced as CVE-2026-63796. Remote exploitation of the attack is possible. No exploit is available.VulDB Recent EntriesRead More