loop0: detected capacity change from 0 to 32768
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 32352 Comm: syz.0.6581 Not tainted 6.10.0-rc5-syzkaller-00282-g8282d5af7be8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:dtInsertEntry+0xd0c/0x1780 fs/jfs/jfs_dtree.c:3713
Code: 83 e6 02 31 ff e8 24 e0 6f fe 83 e3 02 75 3a e8 1a dd 6f fe 48 8b 9c 24 a8 00 00 00 48 83 c3 08 48 89 d8 48 c1 e8 03 4c 89 f2 <42> 0f b6 04 30 84 c0 74 3e 89 d9 80 e1 07 38 c1 7c 35 48 89 df e8
RSP: 0018:ffffc90003d0f060 EFLAGS: 00010212
RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000040000
RDX: dffffc0000000000 RSI: 0000000000004aed RDI: 0000000000004aee
RBP: ffffc90003d0f210 R08: ffffffff83264d1c R09: 1ffff1100f553823
R10: dffffc0000000000 R11: ffffed100f553824 R12: ffff88807aa9c3b0
R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000007
FS:  00007f37273416c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3e7898 CR3: 00000000553f0000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 dtInsert+0xbf1/0x6b00 fs/jfs/jfs_dtree.c:891
 jfs_create+0x7ba/0xb90 fs/jfs/namei.c:137
 lookup_open fs/namei.c:3505 [inline]
 open_last_lookups fs/namei.c:3574 [inline]
 path_openat+0x1427/0x3280 fs/namei.c:3804
 do_filp_open+0x235/0x490 fs/namei.c:3834
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1405
 do_sys_open fs/open.c:1420 [inline]
 __do_sys_openat fs/open.c:1436 [inline]
 __se_sys_openat fs/open.c:1431 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1431
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3726575b99
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:00007f3727341048 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3726704078 RCX: 00007f3726575b99
RDX: 00000000000026e1 RSI: 0000000020000240 RDI: ffffffffffffff9c
RBP: 00007f37265f677e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3726704078 R15: 00007fff8c23ef78
 </TASK>
Modules linked in:
----------------
Code disassembly (best guess):
   0:	83 e6 02             	and    $0x2,%esi
   3:	31 ff                	xor    %edi,%edi
   5:	e8 24 e0 6f fe       	call   0xfe6fe02e
   a:	83 e3 02             	and    $0x2,%ebx
   d:	75 3a                	jne    0x49
   f:	e8 1a dd 6f fe       	call   0xfe6fdd2e
  14:	48 8b 9c 24 a8 00 00 	mov    0xa8(%rsp),%rbx
  1b:	00
  1c:	48 83 c3 08          	add    $0x8,%rbx
  20:	48 89 d8             	mov    %rbx,%rax
  23:	48 c1 e8 03          	shr    $0x3,%rax
  27:	4c 89 f2             	mov    %r14,%rdx
* 2a:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	74 3e                	je     0x71
  33:	89 d9                	mov    %ebx,%ecx
  35:	80 e1 07             	and    $0x7,%cl
  38:	38 c1                	cmp    %al,%cl
  3a:	7c 35                	jl     0x71
  3c:	48 89 df             	mov    %rbx,%rdi
  3f:	e8                   	.byte 0xe8