Unable to handle kernel paging request at virtual address dfff800000000004
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
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
[dfff800000000004] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 6491 Comm: syz-executor.3 Not tainted 6.3.0-rc6-syzkaller-g1f5b16c51aef #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : pid_is_meaningful fs/gfs2/glock.c:1457 [inline]
pc : dump_holder fs/gfs2/glock.c:2266 [inline]
pc : gfs2_dump_glock+0xac0/0x15ac fs/gfs2/glock.c:2382
lr : rcu_read_lock include/linux/rcupdate.h:774 [inline]
lr : dump_holder fs/gfs2/glock.c:2265 [inline]
lr : gfs2_dump_glock+0xa50/0x15ac fs/gfs2/glock.c:2382
sp : ffff80001f9e6ec0
x29: ffff80001f9e71c0 x28: ffff80001f9e6fa0 x27: ffff80001f677170
x26: 0000000000000021 x25: 0000000000000040 x24: 0000000000000001
x23: dfff800000000000 x22: ffff8000187c0000 x21: ffff80001f9e6fc0
x20: 0000000000000001 x19: 0000000000000004 x18: 1fffe000368561b6
x17: ffff800015c7d000 x16: ffff80001231a888 x15: 0000000000000002
x14: 1ffff00002b900b0 x13: dfff800000000000 x12: 000000007eb86787
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff000134019b40 x7 : ffff80000a392278 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : ffff800012949360 x0 : 0000000000000001
Call trace:
 pid_is_meaningful fs/gfs2/glock.c:1457 [inline]
 dump_holder fs/gfs2/glock.c:2266 [inline]
 gfs2_dump_glock+0xac0/0x15ac fs/gfs2/glock.c:2382
 gfs2_consist_inode_i+0xe8/0x10c fs/gfs2/util.c:465
 gfs2_dirent_scan+0x458/0x584 fs/gfs2/dir.c:602
 gfs2_dirent_search+0x28c/0x790 fs/gfs2/dir.c:850
 gfs2_dir_search+0xb8/0x280 fs/gfs2/dir.c:1650
 gfs2_lookupi+0x3a4/0x500 fs/gfs2/inode.c:332
 __gfs2_lookup+0xb0/0x270 fs/gfs2/inode.c:888
 gfs2_atomic_open+0x9c/0x1c4 fs/gfs2/inode.c:1292
 atomic_open fs/namei.c:3279 [inline]
 lookup_open fs/namei.c:3387 [inline]
 open_last_lookups fs/namei.c:3484 [inline]
 path_openat+0xb10/0x27f8 fs/namei.c:3712
 do_filp_open+0x1bc/0x3cc fs/namei.c:3742
 do_sys_openat2+0x128/0x3d8 fs/open.c:1348
 do_sys_open fs/open.c:1364 [inline]
 __do_sys_openat fs/open.c:1380 [inline]
 __se_sys_openat fs/open.c:1375 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1375
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193
 el0_svc+0x4c/0x15c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
Code: 390e1268 977e2bc1 9100831a d343ff53 (38f76a68) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	390e1268 	strb	w8, [x19, #900]
   4:	977e2bc1 	bl	0xfffffffffdf8af08
   8:	9100831a 	add	x26, x24, #0x20
   c:	d343ff53 	lsr	x19, x26, #3
* 10:	38f76a68 	ldrsb	w8, [x19, x23] <-- trapping instruction