Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 6512 Comm: syz.0.21 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:jfs_statfs+0x165/0x550 fs/jfs/super.c:128
Code: 03 49 be 00 00 00 00 00 fc ff df 42 80 7c 35 00 00 4c 8b 3c 24 74 08 4c 89 ef e8 16 50 e8 fe 4d 8b 65 00 4c 89 e0 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 e7 e8 fc 4f e8 fe 4d 8b 34 24 4c 8d 63
RSP: 0018:ffffc900043d7be8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc900043d7de0 RCX: ffff8880203edac0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff110046d3794 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc900043d7b60 R11: ffffffff83398ef0 R12: 0000000000000000
R13: ffff88802369bca0 R14: dffffc0000000000 R15: ffff888050130000
FS:  00007f2a8e31c6c0(0000) GS:ffff888126def000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2a8e31bfa8 CR3: 000000002e28c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 statfs_by_dentry fs/statfs.c:66 [inline]
 vfs_statfs+0x147/0x2d0 fs/statfs.c:90
 user_statfs+0xb7/0x170 fs/statfs.c:105
 __do_sys_statfs fs/statfs.c:193 [inline]
 __se_sys_statfs fs/statfs.c:190 [inline]
 __x64_sys_statfs+0xe0/0x1b0 fs/statfs.c:190
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2a8f0d5f19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2a8e31c048 EFLAGS: 00000246 ORIG_RAX: 0000000000000089
RAX: ffffffffffffffda RBX: 00007f2a8f266110 RCX: 00007f2a8f0d5f19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200003c0
RBP: 00007f2a8f144e68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f2a8f266110 R15: 00007ffdc431b758
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jfs_statfs+0x165/0x550 fs/jfs/super.c:128
Code: 03 49 be 00 00 00 00 00 fc ff df 42 80 7c 35 00 00 4c 8b 3c 24 74 08 4c 89 ef e8 16 50 e8 fe 4d 8b 65 00 4c 89 e0 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 e7 e8 fc 4f e8 fe 4d 8b 34 24 4c 8d 63
RSP: 0018:ffffc900043d7be8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc900043d7de0 RCX: ffff8880203edac0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff110046d3794 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc900043d7b60 R11: ffffffff83398ef0 R12: 0000000000000000
R13: ffff88802369bca0 R14: dffffc0000000000 R15: ffff888050130000
FS:  00007f2a8e31c6c0(0000) GS:ffff888126def000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2a8e31bfa8 CR3: 000000002e28c000 CR4: 00000000003526f0
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
   7:	fc ff df
   a:	42 80 7c 35 00 00    	cmpb   $0x0,0x0(%rbp,%r14,1)
  10:	4c 8b 3c 24          	mov    (%rsp),%r15
  14:	74 08                	je     0x1e
  16:	4c 89 ef             	mov    %r13,%rdi
  19:	e8 16 50 e8 fe       	call   0xfee85034
  1e:	4d 8b 65 00          	mov    0x0(%r13),%r12
  22:	4c 89 e0             	mov    %r12,%rax
  25:	48 c1 e8 03          	shr    $0x3,%rax
* 29:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 e7             	mov    %r12,%rdi
  33:	e8 fc 4f e8 fe       	call   0xfee85034
  38:	4d 8b 34 24          	mov    (%r12),%r14
  3c:	4c                   	rex.WR
  3d:	8d                   	.byte 0x8d
  3e:	63                   	.byte 0x63