gfs2: fsid=syz:syz.0:  H: s:?? f:TAnW e:0 p:0 [(ended)] psi_task_switch+0x3c0/0x618 kernel/sched/psi.c:999
Unable to handle kernel paging request at virtual address dfff800000000003
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff800000000003] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 7557 Comm: syz-executor.4 Not tainted 6.6.0-rc7-syzkaller-00089-g8de1e7afcc1c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
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:2259 [inline]
pc : gfs2_dump_glock+0xac4/0x1560 fs/gfs2/glock.c:2375
lr : rcu_read_lock include/linux/rcupdate.h:750 [inline]
lr : dump_holder fs/gfs2/glock.c:2258 [inline]
lr : gfs2_dump_glock+0xa54/0x1560 fs/gfs2/glock.c:2375
sp : ffff800098826ee0
x29: ffff8000988271e0 x28: ffff800098826fc0 x27: ffff0000dc5e5dd0
x26: d6568af431b457a9 x25: 000000000000001f x24: ffffffffffffffff
x23: dfff800000000000 x22: ffff8000910a1000 x21: ffff800098826fe0
x20: 0000000000000001 x19: 0000000000000003 x18: 1fffe000368333ce
x17: ffff80008e33d000 x16: ffff80008a71b23c x15: 0000000000000004
x14: ffff80008e3405e0 x13: dfff800000000000 x12: 000000001a331847
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000d0470000 x7 : ffff80008242c5c8 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : ffff80008ad646a0 x0 : 0000000000000001
Call trace:
 pid_is_meaningful fs/gfs2/glock.c:1457 [inline]
 dump_holder fs/gfs2/glock.c:2259 [inline]
 gfs2_dump_glock+0xac4/0x1560 fs/gfs2/glock.c:2375
 gfs2_consist_inode_i+0xe8/0x10c fs/gfs2/util.c:456
 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:338
 __gfs2_lookup+0xb0/0x270 fs/gfs2/inode.c:894
 gfs2_atomic_open+0x9c/0x1c4 fs/gfs2/inode.c:1295
 atomic_open fs/namei.c:3359 [inline]
 lookup_open fs/namei.c:3467 [inline]
 open_last_lookups fs/namei.c:3564 [inline]
 path_openat+0xb10/0x27f8 fs/namei.c:3794
 do_filp_open+0x1bc/0x3cc fs/namei.c:3824
 do_sys_openat2+0x124/0x1b8 fs/open.c:1422
 do_sys_open fs/open.c:1437 [inline]
 __do_sys_openat fs/open.c:1453 [inline]
 __se_sys_openat fs/open.c:1448 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1448
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
Code: 390ad268 977c1191 91008319 d343ff33 (38f76a68) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	390ad268 	strb	w8, [x19, #692]
   4:	977c1191 	bl	0xfffffffffdf04648
   8:	91008319 	add	x25, x24, #0x20
   c:	d343ff33 	lsr	x19, x25, #3
* 10:	38f76a68 	ldrsb	w8, [x19, x23] <-- trapping instruction