CVE-2023-54127

CVE-2023-54127 describes a kernel-level double-free in JFS during unmount/remount paths. Affected code paths include dbUnmount() in fs/jfs/jfs_dmap.c and jfs_umount/jfs_put_super, with a KASAN slab_free/free hook triggering the double-free in mm/slub.c. The issue occurs after a failed jfs_remount...