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: 4171 Comm: syz-executor.0 Not tainted 6.1.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:dtExtendPage fs/jfs/jfs_dtree.c:1661 [inline]
RIP: 0010:dtSplitUp fs/jfs/jfs_dtree.c:1034 [inline]
RIP: 0010:dtInsert+0x2ebe/0x6c10 fs/jfs/jfs_dtree.c:863
Code: 10 00 48 8b 5c 24 08 74 12 48 89 df e8 ab b1 fd fe 48 ba 00 00 00 00 00 fc ff df 4c 89 2b eb 03 45 31 ed 4d 89 ee 49 c1 ee 03 <41> 80 3c 16 00 74 08 4c 89 ef e8 03 b1 fd fe 49 8b 75 00 48 85 f6
RSP: 0018:ffffc90004baf6c0 EFLAGS: 00010246
RAX: ffffc90004bafc10 RBX: ffffc90004bafc00 RCX: 1ffff92000975f31
RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc90004baf982
RBP: ffffc90004bafb30 R08: dffffc0000000000 R09: fffff940003dd69f
R10: fffff940003dd69f R11: 1ffffd40003dd69e R12: ffff888072f93270
R13: 0000000000000000 R14: 0000000000000000 R15: 1ffff92000975f28
FS:  00007fb5c31e6700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb5c2113e09 CR3: 000000001c8cb000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jfs_create+0x5de/0x960 fs/jfs/namei.c:137
 vfs_create+0x25e/0x3b0 fs/namei.c:3115
 do_mknodat+0x33e/0x640 fs/namei.c:3964
 __do_sys_mknodat fs/namei.c:3992 [inline]
 __se_sys_mknodat fs/namei.c:3989 [inline]
 __x64_sys_mknodat+0xa0/0xb0 fs/namei.c:3989
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb5c208b5a9
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb5c31e6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000103
RAX: ffffffffffffffda RBX: 00007fb5c21abf80 RCX: 00007fb5c208b5a9
RDX: 0000000000000008 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 00007fb5c20e6580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000103 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe66979d9f R14: 00007fb5c31e6300 R15: 0000000000022000
 </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+0x2ebe/0x6c10 fs/jfs/jfs_dtree.c:863
Code: 10 00 48 8b 5c 24 08 74 12 48 89 df e8 ab b1 fd fe 48 ba 00 00 00 00 00 fc ff df 4c 89 2b eb 03 45 31 ed 4d 89 ee 49 c1 ee 03 <41> 80 3c 16 00 74 08 4c 89 ef e8 03 b1 fd fe 49 8b 75 00 48 85 f6
RSP: 0018:ffffc90004baf6c0 EFLAGS: 00010246
RAX: ffffc90004bafc10 RBX: ffffc90004bafc00 RCX: 1ffff92000975f31
RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc90004baf982
RBP: ffffc90004bafb30 R08: dffffc0000000000 R09: fffff940003dd69f
R10: fffff940003dd69f R11: 1ffffd40003dd69e R12: ffff888072f93270
R13: 0000000000000000 R14: 0000000000000000 R15: 1ffff92000975f28
FS:  00007fb5c31e6700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb5c2113e09 CR3: 000000001c8cb000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	10 00                	adc    %al,(%rax)
   2:	48 8b 5c 24 08       	mov    0x8(%rsp),%rbx
   7:	74 12                	je     0x1b
   9:	48 89 df             	mov    %rbx,%rdi
   c:	e8 ab b1 fd fe       	callq  0xfefdb1bc
  11:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  18:	fc ff df
  1b:	4c 89 2b             	mov    %r13,(%rbx)
  1e:	eb 03                	jmp    0x23
  20:	45 31 ed             	xor    %r13d,%r13d
  23:	4d 89 ee             	mov    %r13,%r14
  26:	49 c1 ee 03          	shr    $0x3,%r14
* 2a:	41 80 3c 16 00       	cmpb   $0x0,(%r14,%rdx,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 ef             	mov    %r13,%rdi
  34:	e8 03 b1 fd fe       	callq  0xfefdb13c
  39:	49 8b 75 00          	mov    0x0(%r13),%rsi
  3d:	48 85 f6             	test   %rsi,%rsi