loop0: detected capacity change from 0 to 32768
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 5467 Comm: syz-executor.0 Not tainted 6.7.0-rc1-syzkaller-00139-g6bc40e44f1dd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:dtExtendPage fs/jfs/jfs_dtree.c:1661 [inline]
RIP: 0010:dtSplitUp fs/jfs/jfs_dtree.c:1034 [inline]
RIP: 0010:dtInsert+0x312f/0x6b00 fs/jfs/jfs_dtree.c:863
Code: 24 70 74 08 48 89 df e8 0f cf d7 fe 4c 89 23 eb 08 e8 85 ef 7b fe 45 31 e4 4d 89 e7 49 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 07 00 74 08 4c 89 e7 e8 42 ce d7 fe 49 8b 1c 24 31 ff 48
RSP: 0018:ffffc90004f976c0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffc90004f97c20 RCX: ffff8880166e5940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004f97b50 R08: ffffffff83127675 R09: 1ffffd40003a9f86
R10: dffffc0000000000 R11: fffff940003a9f87 R12: 0000000000000000
R13: ffff888078b9b7e8 R14: 1ffff920009f2f34 R15: 0000000000000000
FS:  00007f36ad6a16c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f36ac50434e CR3: 0000000028ef3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jfs_create+0x7b6/0xb90 fs/jfs/namei.c:137
 vfs_create+0x234/0x390 fs/namei.c:3179
 do_mknodat+0x447/0x5b0 fs/namei.c:4034
 __do_sys_mknodat fs/namei.c:4062 [inline]
 __se_sys_mknodat fs/namei.c:4059 [inline]
 __x64_sys_mknodat+0xa9/0xc0 fs/namei.c:4059
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f36ac47ad39
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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f36ad6a10c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000103
RAX: ffffffffffffffda RBX: 00007f36ac59bf80 RCX: 00007f36ac47ad39
RDX: 0000000000000008 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 00007f36ac4d7567 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000103 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f36ac59bf80 R15: 00007fff0df35f58
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dtExtendPage fs/jfs/jfs_dtree.c:1661 [inline]
RIP: 0010:dtSplitUp fs/jfs/jfs_dtree.c:1034 [inline]
RIP: 0010:dtInsert+0x312f/0x6b00 fs/jfs/jfs_dtree.c:863
Code: 24 70 74 08 48 89 df e8 0f cf d7 fe 4c 89 23 eb 08 e8 85 ef 7b fe 45 31 e4 4d 89 e7 49 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 07 00 74 08 4c 89 e7 e8 42 ce d7 fe 49 8b 1c 24 31 ff 48
RSP: 0018:ffffc90004f976c0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffc90004f97c20 RCX: ffff8880166e5940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004f97b50 R08: ffffffff83127675 R09: 1ffffd40003a9f86
R10: dffffc0000000000 R11: fffff940003a9f87 R12: 0000000000000000
R13: ffff888078b9b7e8 R14: 1ffff920009f2f34 R15: 0000000000000000
FS:  00007f36ad6a16c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a2a3811680 CR3: 0000000028ef3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	24 70                	and    $0x70,%al
   2:	74 08                	je     0xc
   4:	48 89 df             	mov    %rbx,%rdi
   7:	e8 0f cf d7 fe       	call   0xfed7cf1b
   c:	4c 89 23             	mov    %r12,(%rbx)
   f:	eb 08                	jmp    0x19
  11:	e8 85 ef 7b fe       	call   0xfe7bef9b
  16:	45 31 e4             	xor    %r12d,%r12d
  19:	4d 89 e7             	mov    %r12,%r15
  1c:	49 c1 ef 03          	shr    $0x3,%r15
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	41 80 3c 07 00       	cmpb   $0x0,(%r15,%rax,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 e7             	mov    %r12,%rdi
  34:	e8 42 ce d7 fe       	call   0xfed7ce7b
  39:	49 8b 1c 24          	mov    (%r12),%rbx
  3d:	31 ff                	xor    %edi,%edi
  3f:	48                   	rex.W