hfs: new node 4 already hashed?
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1
WARNING: fs/hfs/bnode.c:478 at hfs_bnode_create+0x45a/0x4e0 fs/hfs/bnode.c:478, CPU#1: syz.1.640/14463
Modules linked in:
CPU: 1 UID: 0 PID: 14463 Comm: syz.1.640 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:hfs_bnode_create+0x45a/0x4e0 fs/hfs/bnode.c:478
Code: 89 8b 89 ee e8 57 ec 78 fe e9 d6 fc ff ff e8 7d 7a 17 ff 4c 89 ef e8 25 a0 a2 08 48 c7 c7 40 30 89 8b 89 ee e8 37 ec 78 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:ffffc900043e7828 EFLAGS: 00010246
RAX: 000000000000001f RBX: ffff8880623c8000 RCX: 8ae1a936af783600
RDX: ffffc90012eff000 RSI: 00000000000009f8 RDI: 00000000000009f9
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff5200087ceb5 R12: 0000000000000004
R13: ffff8880623c80d0 R14: ffff88802b8b3e00 R15: dffffc0000000000
FS:  00007f3e525766c0(0000) GS:ffff888125d06000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe2197f0d8 CR3: 000000002b24a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 hfs_bnode_split+0xd4/0x1070 fs/hfsplus/brec.c:-1
 hfs_brec_insert+0x3a4/0xc80 fs/hfs/brec.c:102
 hfs_cat_create+0x537/0x870 fs/hfs/catalog.c:131
 hfs_mkdir+0x73/0xe0 fs/hfs/dir.c:226
 vfs_mkdir+0x408/0x620 fs/namei.c:5410
 filename_mkdirat+0x289/0x520 fs/namei.c:5443
 __do_sys_mkdirat fs/namei.c:5464 [inline]
 __se_sys_mkdirat+0x35/0x150 fs/namei.c:5461
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3e5431cf47
Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 01 00 00 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:00007f3e52575e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f3e52575ee0 RCX: 00007f3e5431cf47
RDX: 00000000000001ff RSI: 0000200000000040 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
R13: 00007f3e52575ea0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>