gfs2: fsid=syz:syz.0: error recovering journal 0: -5
Unable to handle kernel NULL pointer dereference at virtual address 000000000000008c
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=0000000155627000
[000000000000008c] pgd=080000015852a003, p4d=080000015852a003, pud=08000001604c8003, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 10218 Comm: syz-executor.4 Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : evict_linked_inode fs/gfs2/super.c:1349 [inline]
pc : gfs2_evict_inode+0x430/0x974 fs/gfs2/super.c:1399
lr : evict_linked_inode fs/gfs2/super.c:1347 [inline]
lr : gfs2_evict_inode+0x424/0x974 fs/gfs2/super.c:1399
sp : ffff8000204337a0
x29: ffff800020433820 x28: ffff80000d369360 x27: 0000000000010000
x26: 0000000000000001 x25: 0000000000000000 x24: 0000000000008004
x23: ffff00011824dab0 x22: ffff00011824d810 x21: ffff0001163de000
x20: ffff0001163de000 x19: ffff000113bd0c80 x18: 000000000000cfc3
x17: ffff80000dd94158 x16: ffff000115dfbdf8 x15: ffff80000dbd2118
x14: ffff000115dfb400 x13: 00000000ffffffff x12: 0000000000040000
x11: 000000000003d0f2 x10: ffff80001aefb000 x9 : ffff800009202a1c
x8 : 0000000000000000 x7 : ffff800008609898 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000001 x1 : 0000000000000000 x0 : ffff0001163de000
Call trace:
 evict_linked_inode fs/gfs2/super.c:1349 [inline]
 gfs2_evict_inode+0x430/0x974 fs/gfs2/super.c:1399
 evict+0xf0/0x338 fs/inode.c:664
 iput_final fs/inode.c:1747 [inline]
 iput+0x4d8/0x53c fs/inode.c:1773
 gfs2_jindex_free+0x110/0x170 fs/gfs2/super.c:75
 init_journal+0x3a0/0xef4 fs/gfs2/ops_fstype.c:871
 init_inodes+0x74/0x184 fs/gfs2/ops_fstype.c:889
 gfs2_fill_super+0xbc8/0xee0 fs/gfs2/ops_fstype.c:1247
 get_tree_bdev+0x1e8/0x2a0 fs/super.c:1282
 gfs2_get_tree+0x30/0xc0 fs/gfs2/ops_fstype.c:1330
 vfs_get_tree+0x40/0x140 fs/super.c:1489
 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3145
 path_mount+0x348/0x86c fs/namespace.c:3475
 do_mount fs/namespace.c:3488 [inline]
 __do_sys_mount fs/namespace.c:3697 [inline]
 __se_sys_mount fs/namespace.c:3674 [inline]
 __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3674
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193
 el0_svc+0x58/0x14c 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: 97ff3c4a f94482a8 aa1503e0 2a1f03e1 (b9408d02) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	97ff3c4a 	bl	0xfffffffffffcf128
   4:	f94482a8 	ldr	x8, [x21, #2304]
   8:	aa1503e0 	mov	x0, x21
   c:	2a1f03e1 	mov	w1, wzr
* 10:	b9408d02 	ldr	w2, [x8, #140] <-- trapping instruction