Unable to handle kernel paging request at virtual address dfff800000000008
KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047]
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
[dfff800000000008] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 13024 Comm: syz-executor.3 Not tainted 6.3.0-rc5-syzkaller-g9a03cbd79d3a #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 : generic_test_bit include/asm-generic/bitops/generic-non-atomic.h:128 [inline]
pc : txBegin+0x138/0x5e0 fs/jfs/jfs_txnmgr.c:366
lr : txBegin+0x104/0x5e0 fs/jfs/jfs_txnmgr.c:357
sp : ffff80001f207860
x29: ffff80001f207880 x28: dfff800000000000 x27: 1ffff00003e40f66
x26: 1ffff00003e40f64 x25: 0000000000000040 x24: 0000000000000000
x23: ffff800016225c00 x22: ffff0000d1375a30 x21: 0000000000000150
x20: 0000000000000008 x19: 0000000000000000 x18: ffff80001f207560
x17: ffff800015c8d000 x16: ffff80000831fa34 x15: 0000000000048f9b
x14: 000000001c4f0bb3 x13: dfff800000000000 x12: ffff700003e40ef4
x11: ff808000099d87cc x10: 0000000000000000 x9 : ffff0000cc1f51c0
x8 : 1ffff00002c4354c x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff8000192c4990 x4 : 0000000000000008 x3 : ffff80000831fb64
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 txBegin+0x138/0x5e0 fs/jfs/jfs_txnmgr.c:362
 jfs_truncate_nolock+0x120/0x324 fs/jfs/inode.c:378
 jfs_truncate+0xec/0x14c fs/jfs/inode.c:412
 jfs_setattr+0x450/0x66c fs/jfs/file.c:119
 notify_change+0xa84/0xd20 fs/attr.c:482
 do_truncate+0x1c0/0x28c fs/open.c:66
 vfs_truncate+0x2b8/0x360 fs/open.c:112
 do_sys_truncate+0xec/0x1b4 fs/open.c:135
 __do_sys_truncate fs/open.c:147 [inline]
 __se_sys_truncate fs/open.c:145 [inline]
 __arm64_sys_truncate+0x5c/0x70 fs/open.c:145
 __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+0x58/0x168 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: 9400012e aa1703e0 9595250e 350002f8 (387c6a88) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	9400012e 	bl	0x4b8
   4:	aa1703e0 	mov	x0, x23
   8:	9595250e 	bl	0x6549440
   c:	350002f8 	cbnz	w24, 0x68
* 10:	387c6a88 	ldrb	w8, [x20, x28] <-- trapping instruction