Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 6323 Comm: syz-executor.0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
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 a6 5d db fe 4d 8b 65 00 4c 89 e0 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 e7 e8 8c 5d db fe 4d 8b 34 24 4c 8d 63
RSP: 0018:ffffc90005627bc8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc90005627de0 RCX: ffff888028ad1ec0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff1100626b314 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90005627b40 R11: ffffffff83503ee0 R12: 0000000000000000
R13: ffff8880313598a0 R14: dffffc0000000000 R15: ffff88803c830000
FS:  00007f07e581c6c0(0000) GS:ffff888126104000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb4e77a0000 CR3: 000000002aac4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 statfs_by_dentry fs/statfs.c:66 [inline]
 vfs_statfs+0x147/0x2d0 fs/statfs.c:90
 user_statfs+0xe2/0x1c0 fs/statfs.c:106
 __do_sys_statfs fs/statfs.c:194 [inline]
 __se_sys_statfs fs/statfs.c:191 [inline]
 __x64_sys_statfs+0x120/0x270 fs/statfs.c:191
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f07e64ce279
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 d0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f07e581c078 EFLAGS: 00000246 ORIG_RAX: 0000000000000089
RAX: ffffffffffffffda RBX: 00007f07e660c120 RCX: 00007f07e64ce279
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200000c0
RBP: 00007f07e652f49c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f07e660c120 R15: 00007fff00fa7ce8
 </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 a6 5d db fe 4d 8b 65 00 4c 89 e0 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 e7 e8 8c 5d db fe 4d 8b 34 24 4c 8d 63
RSP: 0018:ffffc90005627bc8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc90005627de0 RCX: ffff888028ad1ec0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff1100626b314 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90005627b40 R11: ffffffff83503ee0 R12: 0000000000000000
R13: ffff8880313598a0 R14: dffffc0000000000 R15: ffff88803c830000
FS:  00007f07e581c6c0(0000) GS:ffff888126104000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb4e77a0000 CR3: 000000002aac4000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	03 49 be             	add    -0x42(%rcx),%ecx
   3:	00 00                	add    %al,(%rax)
   5:	00 00                	add    %al,(%rax)
   7:	00 fc                	add    %bh,%ah
   9:	ff                   	lcall  (bad)
   a:	df 42 80             	filds  -0x80(%rdx)
   d:	7c 35                	jl     0x44
   f:	00 00                	add    %al,(%rax)
  11:	4c 8b 3c 24          	mov    (%rsp),%r15
  15:	74 08                	je     0x1f
  17:	4c 89 ef             	mov    %r13,%rdi
  1a:	e8 a6 5d db fe       	call   0xfedb5dc5
  1f:	4d 8b 65 00          	mov    0x0(%r13),%r12
  23:	4c 89 e0             	mov    %r12,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 e7             	mov    %r12,%rdi
  34:	e8 8c 5d db fe       	call   0xfedb5dc5
  39:	4d 8b 34 24          	mov    (%r12),%r14
  3d:	4c                   	rex.WR
  3e:	8d                   	.byte 0x8d
  3f:	63                   	.byte 0x63