loop0: detected capacity change from 0 to 1024
hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4596 at fs/hfsplus/bnode.c:642 hfsplus_bnode_create+0x3d2/0x460 fs/hfsplus/bnode.c:641
Modules linked in:
CPU: 0 PID: 4596 Comm: syz-executor.0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:hfsplus_bnode_create+0x3d2/0x460 fs/hfsplus/bnode.c:642
Code: 8c 3f 8a 89 ee e8 fe 3e 84 07 e9 52 fd ff ff e8 34 53 4b ff 4c 89 f7 e8 ec 54 98 07 48 c7 c7 60 8c 3f 8a 89 ee e8 de 3e 84 07 <0f> 0b 49 c7 c5 ef ff ff ff eb b0 44 89 f9 80 e1 07 80 c1 03 38 c1
RSP: 0000:ffffc900033cf0b0 EFLAGS: 00010246
RAX: 0000000000000023 RBX: dffffc0000000000 RCX: ef695e67e02ee700
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff8880b9133d7f R09: 1ffff110172267af
R10: dffffc0000000000 R11: ffffed10172267b0 R12: 0000000000000000
R13: ffff88807ba1c000 R14: ffff88807ba1c0e0 R15: ffff888019d91b00
FS:  00007f7e2e1f06c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff44c59a3c CR3: 00000000678e8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x698/0xa70 fs/hfsplus/btree.c:420
 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:1400
 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x24a/0xa40 fs/namespace.c:3034
 do_mount fs/namespace.c:3377 [inline]
 __do_sys_mount fs/namespace.c:3585 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3562
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f7e2ee5f78a
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:00007f7e2e1efed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7e2e1eff70 RCX: 00007f7e2ee5f78a
RDX: 0000000020000040 RSI: 0000000020000080 RDI: 00007f7e2e1eff30
RBP: 0000000020000040 R08: 00007f7e2e1eff70 R09: 0000000000208010
R10: 0000000000208010 R11: 0000000000000246 R12: 0000000020000080
R13: 00007f7e2e1eff30 R14: 0000000000000650 R15: 00000000200000c0
 </TASK>