loop0: detected capacity change from 0 to 64
hfs: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3699 at fs/hfs/bnode.c:421 hfs_bnode_create+0x3d4/0x460 fs/hfs/bnode.c:420
Modules linked in:
CPU: 0 PID: 3699 Comm: syz-executor152 Not tainted 6.1.0-rc6-syzkaller-00015-gc3eb11fbb826 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:hfs_bnode_create+0x3d4/0x460 fs/hfs/bnode.c:421
Code: 31 c0 e8 6b 0f 32 08 e9 5f fd ff ff e8 25 6c 2c ff 4c 89 ff e8 cd 79 3d 08 48 c7 c7 60 de 07 8b 44 89 e6 31 c0 e8 48 0f 32 08 <0f> 0b eb b1 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 61 fc ff ff 48 89
RSP: 0018:ffffc90003c4ef90 EFLAGS: 00010246
RAX: 000000000000001f RBX: ffff888012b7f500 RCX: fffdc2b021be0900
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff816e568d R09: fffff52000789da9
R10: fffff52000789da9 R11: 1ffff92000789da8 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888073514000 R15: ffff8880735140e0
FS:  0000555555bc2300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb0a3051410 CR3: 000000002110a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hfs_bmap_alloc+0x598/0x620 fs/hfs/btree.c:291
 hfs_btree_inc_height+0xec/0xca0 fs/hfs/brec.c:471
 hfs_brec_insert+0x74a/0xc00 fs/hfs/brec.c:148
 __hfs_ext_write_extent+0x2a6/0x460 fs/hfs/extent.c:124
 __hfs_ext_cache_extent+0x67/0x980 fs/hfs/extent.c:174
 hfs_ext_read_extent fs/hfs/extent.c:202 [inline]
 hfs_extend_file+0x323/0x1420 fs/hfs/extent.c:401
 hfs_get_block+0x3fc/0xbb0 fs/hfs/extent.c:353
 __block_write_begin_int+0x54c/0x1a80 fs/buffer.c:1991
 __block_write_begin fs/buffer.c:2041 [inline]
 block_write_begin+0x93/0x1e0 fs/buffer.c:2102
 cont_write_begin+0x606/0x860 fs/buffer.c:2456
 hfs_write_begin+0x86/0xd0 fs/hfs/inode.c:58
 generic_perform_write+0x2e4/0x5e0 mm/filemap.c:3753
 __generic_file_write_iter+0x176/0x400 mm/filemap.c:3881
 generic_file_write_iter+0xab/0x310 mm/filemap.c:3913
 call_write_iter include/linux/fs.h:2191 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x7dc/0xc50 fs/read_write.c:584
 ksys_write+0x177/0x2a0 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb0a30799c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffebb2bc3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fb0a30799c9
RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
RBP: 00007ffebb2bc420 R08: 0000000000000001 R09: 00007ffebb2bc430
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005
R13: 00007ffebb2bc460 R14: 00007ffebb2bc440 R15: 000000000000003c
 </TASK>