loop7: detected capacity change from 0 to 64
hfs: new node 4 already hashed?
------------[ cut here ]------------
1
WARNING: fs/hfs/bnode.c:520 at hfs_bnode_create+0x45a/0x4e0 fs/hfs/bnode.c:520, CPU#0: syz.7.280/8244
Modules linked in:
CPU: 0 UID: 0 PID: 8244 Comm: syz.7.280 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:520
Code: 88 8b 89 ee e8 d7 65 7c fe e9 d6 fc ff ff e8 bd cd 1a ff 4c 89 ef e8 e5 8a 9c 08 48 c7 c7 60 0e 88 8b 89 ee e8 b7 65 7c 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:ffffc9000418f748 EFLAGS: 00010246
RAX: 000000000000001f RBX: ffff88803a51c000 RCX: 10001de420782a00
RDX: ffffc900048d1000 RSI: 0000000000000898 RDI: 0000000000000899
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000831e99 R12: 0000000000000004
R13: ffff88803a51c0d0 R14: ffff88805ec2ea00 R15: dffffc0000000000
FS:  00007fc4f57b66c0(0000) GS:ffff888125c3a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc4ed3a5000 CR3: 0000000054e56000 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+0x3b1/0x810 fs/hfs/catalog.c:118
 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_mkdirat fs/namei.c:5330 [inline]
 __se_sys_mkdirat+0x35/0x150 fs/namei.c:5327
 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: 0033:0x7fc4f755cf47
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:00007fc4f57b5e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fc4f57b5ee0 RCX: 00007fc4f755cf47
RDX: 00000000000001ff RSI: 00002000000008c0 RDI: 00000000ffffff9c
RBP: 0000200000000500 R08: 0000200000000b00 R09: 0000000000000000
R10: 0000200000000500 R11: 0000000000000246 R12: 00002000000008c0
R13: 00007fc4f57b5ea0 R14: 0000000000000000 R15: 0000200000000a00
 </TASK>