Unable to handle kernel paging request at virtual address dfff80000000000d KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 [dfff80000000000d] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4291 Comm: syz-executor425 Not tainted 6.1.119-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : d_really_is_negative include/linux/dcache.h:466 [inline] pc : open_xa_root fs/reiserfs/xattr.c:124 [inline] pc : open_xa_dir+0xf8/0x578 fs/reiserfs/xattr.c:152 lr : open_xa_dir+0x9c/0x578 fs/reiserfs/xattr.c:150 sp : ffff8000211571c0 x29: ffff800021157240 x28: 000000000000000d x27: dfff800000000000 x26: ffff70000422ae38 x25: 0000000000000000 x24: 1fffe0001b3234cf x23: 0000000000000068 x22: ffff0000e1b48ed0 x21: ffff8000211571e0 x20: 0000000000000002 x19: ffff0000d991a678 x18: ffff800021157460 x17: 0000000000000000 x16: ffff800012272dc0 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: ffff70000422ae3e x11: 1ffff0000422ae3c x10: 0000000000000001 x9 : 0000000000000001 x8 : 0000000000000000 x7 : 0000000000000000 x6 : ffff800008dd1b84 x5 : ffff800021157380 x4 : 0000000000000000 x3 : 0000000000000010 x2 : 0000000000000001 x1 : 0000000000000000 x0 : ffff8000211571e0 Call trace: d_really_is_negative include/linux/dcache.h:466 [inline] open_xa_root fs/reiserfs/xattr.c:124 [inline] open_xa_dir+0xf8/0x578 fs/reiserfs/xattr.c:152 reiserfs_for_each_xattr+0x16c/0x8d8 fs/reiserfs/xattr.c:252 reiserfs_delete_xattrs+0x2c/0xa4 fs/reiserfs/xattr.c:364 reiserfs_evict_inode+0x1dc/0x3f0 fs/reiserfs/inode.c:53 evict+0x418/0x894 fs/inode.c:701 iput_final fs/inode.c:1830 [inline] iput+0x7c0/0x8a4 fs/inode.c:1856 hook_sb_delete+0x688/0xa10 security/landlock/fs.c:1021 security_sb_delete+0x50/0x94 security/security.c:936 generic_shutdown_super+0xac/0x328 fs/super.c:487 kill_block_super+0x70/0xdc fs/super.c:1470 reiserfs_kill_sb+0x134/0x14c fs/reiserfs/super.c:570 deactivate_locked_super+0xac/0x124 fs/super.c:332 deactivate_super+0xf0/0x110 fs/super.c:363 cleanup_mnt+0x394/0x41c fs/namespace.c:1186 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193 task_work_run+0x240/0x2f0 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2080/0x2cb8 arch/arm64/kernel/signal.c:1132 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Code: 97ee8ddc f94002e8 9101a117 d343fefc (387b6b88) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 97ee8ddc bl 0xffffffffffba3770 4: f94002e8 ldr x8, [x23] 8: 9101a117 add x23, x8, #0x68 c: d343fefc lsr x28, x23, #3 * 10: 387b6b88 ldrb w8, [x28, x27] <-- trapping instruction