loop0: detected capacity change from 0 to 1024
hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3934 at fs/hfsplus/bnode.c:631 hfsplus_bnode_create+0x383/0x410 fs/hfsplus/bnode.c:630
Modules linked in:
CPU: 1 PID: 3934 Comm: syz-executor.0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:hfsplus_bnode_create+0x383/0x410 fs/hfsplus/bnode.c:631
Code: 5c 82 8a 89 ee e8 bd d5 ae 07 e9 a2 fd ff ff e8 73 43 37 ff 4c 89 f7 e8 db 9b c3 07 48 c7 c7 00 5d 82 8a 89 ee e8 9d d5 ae 07 <0f> 0b 49 c7 c6 ef ff ff ff eb b0 44 89 f9 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc9000498f0c0 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff888013ea4000 RCX: 2cdb2ddc581b1200
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc9000498edc7 R09: 1ffff92000931db8
R10: dffffc0000000000 R11: fffff52000931db9 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888013ea40e0 R15: ffff888014eed100
FS:  00007f71fe8366c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f691ace5a10 CR3: 000000007296d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x60f/0x9c0 fs/hfsplus/btree.c:421
 hfs_bnode_split+0xd1/0xef0 fs/hfsplus/brec.c:245
 hfsplus_brec_insert+0x391/0xcc0 fs/hfsplus/brec.c:100
 hfsplus_create_cat+0x412/0x10c0 fs/hfsplus/catalog.c:292
 hfsplus_fill_super+0x14b8/0x1e70 fs/hfsplus/super.c:579
 mount_bdev+0x287/0x3c0 fs/super.c:1443
 legacy_get_tree+0xe6/0x180 fs/fs_context.c:632
 vfs_get_tree+0x88/0x270 fs/super.c:1573
 do_new_mount+0x24a/0xa40 fs/namespace.c:3078
 do_mount fs/namespace.c:3421 [inline]
 __do_sys_mount fs/namespace.c:3629 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3606
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f71fda6d70a
Code: 48 c7 c2 d0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f71fe835ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f71fe835f70 RCX: 00007f71fda6d70a
RDX: 0000000020000040 RSI: 0000000020000080 RDI: 00007f71fe835f30
RBP: 0000000020000040 R08: 00007f71fe835f70 R09: 0000000000208010
R10: 0000000000208010 R11: 0000000000000246 R12: 0000000020000080
R13: 00007f71fe835f30 R14: 0000000000000650 R15: 00000000200000c0
 </TASK>