general protection fault, probably for non-canonical address 0xdffffc0000000104: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000820-0x0000000000000827]
CPU: 0 PID: 6370 Comm: syz.0.367 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:diIAGRead fs/jfs/jfs_imap.c:2665 [inline]
RIP: 0010:diRead+0x149/0xbb0 fs/jfs/jfs_imap.c:316
Code: 5c 24 50 48 81 c3 98 fc ff ff 48 89 df be 01 00 00 00 e8 ea 8b 79 fe 4c 89 7c 24 10 49 81 c7 20 08 00 00 4c 89 f8 48 c1 e8 03 <80> 3c 28 00 74 08 4c 89 ff e8 49 21 e8 fe 4c 89 64 24 18 4d 8b 2f
RSP: 0018:ffffc9000529f6d8 EFLAGS: 00010202
RAX: 0000000000000104 RBX: ffff888055a24ac8 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: 00000000ffffffff
RBP: dffffc0000000000 R08: dffffc0000000000 R09: ffffed100ab4495b
R10: ffffed100ab4495b R11: 1ffff1100ab4495a R12: ffff888055a27370
R13: ffff8880741d3608 R14: 0000000000000004 R15: 0000000000000820
FS:  00007f8db37d46c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8db37d3f98 CR3: 000000001fb59000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jfs_iget+0x89/0x3f0 fs/jfs/inode.c:35
 jfs_lookup+0x1c2/0x380 fs/jfs/namei.c:1467
 lookup_open fs/namei.c:3468 [inline]
 open_last_lookups fs/namei.c:3558 [inline]
 path_openat+0xfaf/0x2e70 fs/namei.c:3788
 do_filp_open+0x1c1/0x3c0 fs/namei.c:3818
 do_sys_openat2+0x142/0x490 fs/open.c:1320
 do_sys_open fs/open.c:1336 [inline]
 __do_sys_openat fs/open.c:1352 [inline]
 __se_sys_openat fs/open.c:1347 [inline]
 __x64_sys_openat+0x135/0x160 fs/open.c:1347
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8db298f749
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:00007f8db37d4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f8db2be6180 RCX: 00007f8db298f749
RDX: 0000000000183042 RSI: 0000200000000740 RDI: ffffffffffffff9c
RBP: 00007f8db2a13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000015 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8db2be6218 R14: 00007f8db2be6180 R15: 00007ffca902ebf8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:diIAGRead fs/jfs/jfs_imap.c:2665 [inline]
RIP: 0010:diRead+0x149/0xbb0 fs/jfs/jfs_imap.c:316
Code: 5c 24 50 48 81 c3 98 fc ff ff 48 89 df be 01 00 00 00 e8 ea 8b 79 fe 4c 89 7c 24 10 49 81 c7 20 08 00 00 4c 89 f8 48 c1 e8 03 <80> 3c 28 00 74 08 4c 89 ff e8 49 21 e8 fe 4c 89 64 24 18 4d 8b 2f
RSP: 0018:ffffc9000529f6d8 EFLAGS: 00010202
RAX: 0000000000000104 RBX: ffff888055a24ac8 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: 00000000ffffffff
RBP: dffffc0000000000 R08: dffffc0000000000 R09: ffffed100ab4495b
R10: ffffed100ab4495b R11: 1ffff1100ab4495a R12: ffff888055a27370
R13: ffff8880741d3608 R14: 0000000000000004 R15: 0000000000000820
FS:  00007f8db37d46c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdd8bd76000 CR3: 000000001fb59000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	5c                   	pop    %rsp
   1:	24 50                	and    $0x50,%al
   3:	48 81 c3 98 fc ff ff 	add    $0xfffffffffffffc98,%rbx
   a:	48 89 df             	mov    %rbx,%rdi
   d:	be 01 00 00 00       	mov    $0x1,%esi
  12:	e8 ea 8b 79 fe       	call   0xfe798c01
  17:	4c 89 7c 24 10       	mov    %r15,0x10(%rsp)
  1c:	49 81 c7 20 08 00 00 	add    $0x820,%r15
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 ff             	mov    %r15,%rdi
  33:	e8 49 21 e8 fe       	call   0xfee82181
  38:	4c 89 64 24 18       	mov    %r12,0x18(%rsp)
  3d:	4d 8b 2f             	mov    (%r15),%r13