hfs: new node 4 already hashed?
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1
WARNING: fs/hfs/bnode.c:520 at hfs_bnode_create+0x45a/0x4e0 fs/hfs/bnode.c:520, CPU#1: syz.3.120/6481
Modules linked in:
CPU: 1 UID: 0 PID: 6481 Comm: syz.3.120 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:hfs_bnode_create+0x45a/0x4e0 fs/hfs/bnode.c:520
Code: 87 8b 89 ee e8 97 50 7d fe e9 d6 fc ff ff e8 3d 23 1b ff 4c 89 ef e8 85 de 9a 08 48 c7 c7 20 fb 87 8b 89 ee e8 77 50 7d fe 90 <0f> 0b 90 eb b0 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c dd fb ff ff
RSP: 0018:ffffc9000dbd7748 EFLAGS: 00010246
RAX: 000000000000001f RBX: ffff8880629d6000 RCX: fa3259c70d3e1e00
RDX: ffffc90004cba000 RSI: 0000000000001451 RDI: 0000000000001452
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52001b7ae99 R12: 0000000000000004
R13: ffff8880629d60d0 R14: ffff888025580200 R15: dffffc0000000000
FS:  00007f3c485c66c0(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3c4a3bb580 CR3: 000000003f0fa000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 hfs_bmap_alloc+0x5bd/0x650 fs/hfs/btree.c:326
 hfs_bnode_split+0xd4/0x1070 fs/hfsplus/brec.c:-1
 hfs_brec_insert+0x3a4/0xc80 fs/hfs/brec.c:102
 hfs_cat_create+0x50c/0x810 fs/hfs/catalog.c:131
 hfs_mkdir+0x79/0xe0 fs/hfs/dir.c:226
 vfs_mkdir+0x402/0x620 fs/namei.c:5276
 filename_mkdirat+0x289/0x520 fs/namei.c:5309
 __do_sys_mkdir fs/namei.c:5336 [inline]
 __se_sys_mkdir+0x34/0x150 fs/namei.c:5333
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3c4a36de99
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3c485c6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f3c4a5f5fa0 RCX: 00007f3c4a36de99
RDX: 0000000000000000 RSI: 0000000000000104 RDI: 0000200000000200
RBP: 00007f3c4a403eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3c4a5f6038 R14: 00007f3c4a5f5fa0 R15: 00007fff152fb8d8
 </TASK>