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: 1 PID: 5464 Comm: syz-executor.0 Not tainted 6.5.0-syzkaller-12728-ga48fa7efaf11 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
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 ef 31 d9 fe 4c 89 23 eb 08 e8 d5 46 7f 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 22 31 d9 fe 49 8b 1c 24 31 ff 48
RSP: 0018:ffffc900053976c0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffc90005397c20 RCX: ffff88807e203b80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90005397b50 R08: ffffffff830e4765 R09: 1ffffd4000147556
R10: dffffc0000000000 R11: fffff94000147557 R12: 0000000000000000
R13: ffff8880759e37e8 R14: 1ffff92000a72f34 R15: 0000000000000000
FS:  00007f77d23c96c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f77d130434e CR3: 000000001c52e000 CR4: 00000000003506e0
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+0x1e2/0x330 fs/namei.c:3197
 do_mknodat+0x3c6/0x6e0 fs/namei.c:4048
 __do_sys_mknodat fs/namei.c:4076 [inline]
 __se_sys_mknodat fs/namei.c:4073 [inline]
 __x64_sys_mknodat+0xa9/0xc0 fs/namei.c:4073
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f77d127ad39
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:00007f77d23c90c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000103
RAX: ffffffffffffffda RBX: 00007f77d139bf80 RCX: 00007f77d127ad39
RDX: 0000000000000008 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 00007f77d12d7567 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000103 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f77d139bf80 R15: 00007ffeca32aa18
 </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 ef 31 d9 fe 4c 89 23 eb 08 e8 d5 46 7f 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 22 31 d9 fe 49 8b 1c 24 31 ff 48
RSP: 0018:ffffc900053976c0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffc90005397c20 RCX: ffff88807e203b80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90005397b50 R08: ffffffff830e4765 R09: 1ffffd4000147556
R10: dffffc0000000000 R11: fffff94000147557 R12: 0000000000000000
R13: ffff8880759e37e8 R14: 1ffff92000a72f34 R15: 0000000000000000
FS:  00007f77d23c96c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055927a203b40 CR3: 000000001c52e000 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 ef 31 d9 fe       	call   0xfed931fb
   c:	4c 89 23             	mov    %r12,(%rbx)
   f:	eb 08                	jmp    0x19
  11:	e8 d5 46 7f fe       	call   0xfe7f46eb
  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 22 31 d9 fe       	call   0xfed9315b
  39:	49 8b 1c 24          	mov    (%r12),%rbx
  3d:	31 ff                	xor    %edi,%edi
  3f:	48                   	rex.W