syz.4.692 (10981): drop_caches: 0
hfsplus: new node 0 already hashed?
------------[ cut here ]------------
1
WARNING: fs/hfsplus/bnode.c:634 at hfsplus_bnode_create+0x45d/0x4f0 fs/hfsplus/bnode.c:634, CPU#1: syz.4.692/10981
Modules linked in:
CPU: 1 UID: 0 PID: 10981 Comm: syz.4.692 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:hfsplus_bnode_create+0x45d/0x4f0 fs/hfsplus/bnode.c:634
Code: 67 8b 89 ee e8 44 6b 83 fe e9 cf fc ff ff e8 ca 83 20 ff 4c 89 f7 e8 32 fc 79 08 48 c7 c7 20 54 67 8b 89 ee e8 24 6b 83 fe 90 <0f> 0b 90 49 c7 c5 ef ff ff ff eb a9 44 89 f9 80 e1 07 80 c1 03 38
RSP: 0018:ffffc90006c075a0 EFLAGS: 00010246
RAX: 0000000000000023 RBX: dffffc0000000000 RCX: 65a2319d80d10100
RDX: ffffc900070db000 RSI: 0000000000001245 RDI: 0000000000001246
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000d80e65 R12: 0000000000000000
R13: ffff88802c15c000 R14: ffff88802c15c0d0 R15: ffff888023f12a00
FS:  00007f97671ee6c0(0000) GS:ffff888126283000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2eb6b2f000 CR3: 000000003ef88000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 hfs_bnode_split+0xd2/0x1090 fs/hfsplus/brec.c:248
 hfsplus_brec_insert+0x3bc/0xd70 fs/hfsplus/brec.c:100
 hfsplus_create_cat+0x430/0x11f0 fs/hfsplus/catalog.c:292
 hfsplus_mknod+0x186/0x3f0 fs/hfsplus/dir.c:538
 hfsplus_mkdir+0x2c/0x40 fs/hfsplus/dir.c:579
 vfs_mkdir+0x40b/0x630 fs/namei.c:5261
 filename_mkdirat+0x289/0x520 fs/namei.c:5294
 __do_sys_mkdirat fs/namei.c:5315 [inline]
 __se_sys_mkdirat+0x35/0x150 fs/namei.c:5312
 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: 0033:0x7f9768f9bcc7
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:00007f97671ede58 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f97671edee0 RCX: 00007f9768f9bcc7
RDX: 00000000000001ff RSI: 0000200000000400 RDI: 00000000ffffff9c
RBP: 0000200000000f40 R08: 0000200000000000 R09: 0000000000000000
R10: 0000200000000f40 R11: 0000000000000246 R12: 0000200000000400
R13: 00007f97671edea0 R14: 0000000000000000 R15: 0000200000000780
 </TASK>