Unable to handle kernel paging request at virtual address dfff800000000005
KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]
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
[dfff800000000005] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 5231 Comm: syz.0.79 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : jbd2_journal_file_inode+0xe4/0x4c4 fs/jbd2/transaction.c:2717
lr : spin_lock include/linux/spinlock.h:347 [inline]
lr : jbd2_journal_file_inode+0xdc/0x4c4 fs/jbd2/transaction.c:2716
sp : ffff8000933e7560
x29: ffff8000933e7570 x28: ffff0000e0829e18 x27: ffff8000933e77a8
x26: 1fffe000182d2440 x25: dfff800000000000 x24: 0000000000000006
x23: 00000000000007ff x22: 0000000000000000 x21: ffff0000c1692200
x20: ffff0000ca26c000 x19: 0000000000000000 x18: 00000000ffffffff
x17: ffff0001ace95394 x16: ffff0000c53f0014 x15: ffff80008b586000
x14: ffff80008bdbe7b0 x13: 0000000000000001 x12: 0000000000000004
x11: ffff70001267ce94 x10: ffff70001267ce94 x9 : dd54595dfd53db00
x8 : 0000000000000005 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff80008b7c0310 x4 : 0000000000000008 x3 : ffff80008047f3e8
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000001
Call trace:
 jbd2_journal_file_inode+0xe4/0x4c4 fs/jbd2/transaction.c:2717 (P)
 jbd2_journal_inode_ranged_write+0x44/0x58 fs/jbd2/transaction.c:2777
 ext4_jbd2_inode_add_write fs/ext4/ext4_jbd2.h:336 [inline]
 ext4_map_blocks+0xca0/0xff8 fs/ext4/inode.c:972
 ext4_convert_inline_data_nolock+0x1ec/0x7dc fs/ext4/inline.c:1139
 ext4_convert_inline_data+0x390/0x4e8 fs/ext4/inline.c:2012
 ext4_setattr+0xc78/0x125c fs/ext4/inode.c:7130
 notify_change+0x928/0xb7c fs/attr.c:556
 do_truncate+0x1a8/0x22c fs/open.c:68
 vfs_truncate+0x3f4/0x458 fs/open.c:118
 ksys_truncate+0xe8/0x190 fs/open.c:142
 __do_sys_truncate fs/open.c:154 [inline]
 __se_sys_truncate fs/open.c:152 [inline]
 __arm64_sys_truncate+0x64/0x7c fs/open.c:152
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x60/0x1d8 arch/arm64/kernel/entry-common.c:797
 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:816
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:606
Code: 911ca280 955f1970 9100a268 d343fd08 (38796908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	911ca280 	add	x0, x20, #0x728
   4:	955f1970 	bl	0x57c65c4
   8:	9100a268 	add	x8, x19, #0x28
   c:	d343fd08 	lsr	x8, x8, #3
* 10:	38796908 	ldrb	w8, [x8, x25] <-- trapping instruction