Description: use-after-free in udf_put_super and udf_close_lvid functions in fs/udf/super.c References: https://lore.kernel.org/all/00000000000056e02f05dfb6e11a%40google.com/T/ https://syzkaller.appspot.com/bug?extid=60864ed35b1073540d57 https://syzkaller.appspot.com/bug?extid=61564e5023b7229ec85d https://syzkaller.appspot.com/bug?extid=26873a72980f8fa8bc55 Notes: carnil> There might be no upstream fix for it from upstream. As by carnil> stated on the upstream thread about the issue: the reproducer carnil> does modify the block device while the filesystem is mounted. Bugs: upstream: needed 6.1-upstream-stable: needed 5.10-upstream-stable: needed 4.19-upstream-stable: needed sid: needed 6.1-bookworm-security: needed 5.10-bullseye-security: needed 4.19-buster-security: needed