hfs: new node 1 already hashed?
------------[ cut here ]------------
WARNING: CPU: 0 PID: 10421 at fs/hfs/bnode.c:431 hfs_bnode_create.cold+0x27/0x4e fs/hfs/bnode.c:431
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 10421 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:hfs_bnode_create.cold+0x27/0x4e fs/hfs/bnode.c:431
Code: 14 07 fa e8 e8 39 6c f9 4c 89 ef e8 70 04 23 00 89 ee 48 c7 c7 e0 9c 7d 88 e8 3d 6b fd ff 48 c7 c7 40 9d 7d 88 e8 31 6b fd ff <0f> 0b e9 b1 1c 07 fa e8 ba 39 6c f9 89 ee 48 c7 c7 40 9a 7d 88 e8
RSP: 0018:ffff88809594f470 EFLAGS: 00010286
RAX: 0000000000000024 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000015d56 RSI: ffffffff814dff01 RDI: ffffed1012b29e80
RBP: 0000000000000001 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880a9453500
R13: ffff88809c18aa10 R14: ffff88809c18a940 R15: 0000000000000001
 hfs_bmap_alloc+0x4d6/0x5e0 fs/hfs/btree.c:288
 hfs_bnode_split+0xd8/0xda0 fs/hfsplus/brec.c:245
 hfs_brec_insert+0x2a2/0xbb0 fs/hfs/brec.c:102
 hfs_cat_create+0x42c/0x9f0 fs/hfs/catalog.c:118
 hfs_create+0x67/0xf0 fs/hfs/dir.c:202
 lookup_open+0x893/0x1a20 fs/namei.c:3235
 do_last fs/namei.c:3327 [inline]
 path_openat+0x1094/0x2df0 fs/namei.c:3537
 do_filp_open+0x18c/0x3f0 fs/namei.c:3567
 do_sys_open+0x3b3/0x520 fs/open.c:1085
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f9533f630d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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:00007f95324d5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f9534082f80 RCX: 00007f9533f630d9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000240
RBP: 00007f9533fbeae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe067123bf R14: 00007f95324d5300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..