loop0: detected capacity change from 0 to 32768
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028
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
user pgtable: 4k pages, 48-bit VAs, pgdp=000000010b81f000
[0000000000000028] pgd=08000001042af003, p4d=08000001042af003, pud=080000010b610003, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 3079 Comm: syz-executor121 Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : diIAGRead fs/jfs/jfs_imap.c:2659 [inline]
pc : diRead+0x8c/0x330 fs/jfs/jfs_imap.c:315
lr : diRead+0x7c/0x330 fs/jfs/jfs_imap.c:314
sp : ffff80000ffd37e0
x29: ffff80000ffd37f0 x28: fefefefefefefeff x27: ffff0000cac9602e
x26: ffff0000c9685000 x25: ffff0000ca0c8000 x24: ffff80000d5a8000
x23: ffff0000cab223e8 x22: ffff80000d5a8000 x21: 0000000000000000
x20: ffff0000cab22750 x19: ffff0000cab23018 x18: ffff80000ffd3950
x17: 0000000000000000 x16: ffff80000dbe6158 x15: ffff0000c8270000
x14: 00000000000000b8 x13: 00000000ffffffff x12: ffff0000c8270000
x11: ff808000095d53e4 x10: 0000000000000000 x9 : 0000000000000001
x8 : ffff0000c8270001 x7 : ffff800008d5af44 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000001000 x1 : 0000000000000002 x0 : 0000000000000000
Call trace:
 diIAGRead fs/jfs/jfs_imap.c:2662 [inline]
 diRead+0x8c/0x330 fs/jfs/jfs_imap.c:315
 jfs_iget+0x64/0x1b8 fs/jfs/inode.c:35
 jfs_lookup+0x118/0x1ec fs/jfs/namei.c:1462
 __lookup_slow+0x14c/0x204 fs/namei.c:1685
 lookup_slow+0x44/0x68 fs/namei.c:1702
 walk_component fs/namei.c:1993 [inline]
 link_path_walk+0x474/0x628 fs/namei.c:2320
 path_openat+0xb8/0x11c4 fs/namei.c:3710
 do_filp_open+0xdc/0x1b8 fs/namei.c:3741
 do_sys_openat2+0xb8/0x22c fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_openat fs/open.c:1342 [inline]
 __se_sys_openat fs/open.c:1337 [inline]
 __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
 el0_svc+0x58/0x150 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:584
Code: f9441320 110006a9 52820002 2a1f03e3 (f9401408) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	f9441320 	ldr	x0, [x25, #2080]
   4:	110006a9 	add	w9, w21, #0x1
   8:	52820002 	mov	w2, #0x1000                	// #4096
   c:	2a1f03e3 	mov	w3, wzr
* 10:	f9401408 	ldr	x8, [x0, #40] <-- trapping instruction