loop0: detected capacity change from 0 to 1024
hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4428 at fs/hfsplus/bnode.c:630 hfsplus_bnode_create+0x37a/0x400 fs/hfsplus/bnode.c:629
Modules linked in:
CPU: 0 PID: 4428 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:hfsplus_bnode_create+0x37a/0x400 fs/hfsplus/bnode.c:630
Code: 82 a2 8a 89 ee e8 f6 13 c7 07 e9 ab fd ff ff e8 9c 24 3b ff 48 89 df e8 14 37 dc 07 48 c7 c7 a0 82 a2 8a 89 ee e8 d6 13 c7 07 <0f> 0b eb b7 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c b7 fc ff ff 4c
RSP: 0018:ffffc90003487420 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff88807a3980e0 RCX: f5622c8d66fe8a00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffff52000690e25
R10: fffff52000690e25 R11: 1ffff92000690e24 R12: 0000000000000000
R13: ffff88807a398000 R14: ffff8880302dfb00 R15: dffffc0000000000
FS:  000055556ca32500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e163fff CR3: 00000000285e2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x609/0x9b0 fs/hfsplus/btree.c:421
 hfs_bnode_split+0xc9/0xee0 fs/hfsplus/brec.c:245
 hfsplus_brec_insert+0x38b/0xcc0 fs/hfsplus/brec.c:100
 hfsplus_create_cat+0x9dc/0x1020 fs/hfsplus/catalog.c:308
 hfsplus_link+0x3e1/0x700 fs/hfsplus/dir.c:342
 vfs_link+0x615/0x7c0 fs/namei.c:4607
 do_linkat+0x274/0x550 fs/namei.c:4678
 __do_sys_link fs/namei.c:4712 [inline]
 __se_sys_link fs/namei.c:4710 [inline]
 __x64_sys_link+0x82/0x90 fs/namei.c:4710
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa8fd38f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd0d92fd48 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
RAX: ffffffffffffffda RBX: 00007fa8fd5e5fa0 RCX: 00007fa8fd38f749
RDX: 0000000000000000 RSI: 0000200000000440 RDI: 00002000000002c0
RBP: 00007fa8fd413f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa8fd5e5fa0 R14: 00007fa8fd5e5fa0 R15: 0000000000000002
 </TASK>