loop0: detected capacity change from 0 to 64
hfs: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3689 at fs/hfs/bnode.c:421 hfs_bnode_create.cold+0x1c/0x44 fs/hfs/bnode.c:420
Modules linked in:
CPU: 1 PID: 3689 Comm: syz-executor367 Not tainted 6.1.0-rc6-syzkaller-00176-g08ad43d554ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:hfs_bnode_create.cold+0x1c/0x44 fs/hfs/bnode.c:421
Code: 60 1d 66 8a e8 21 e3 fb ff e9 2c 0f 9a f8 e8 6e 64 d4 f7 4c 89 f7 e8 26 a2 44 00 44 89 ee 48 c7 c7 a0 1d 66 8a e8 00 e3 fb ff <0f> 0b e9 39 16 9a f8 e8 4b 64 d4 f7 44 89 ee 48 c7 c7 e0 1b 66 8a
RSP: 0018:ffffc90003d8f360 EFLAGS: 00010282
RAX: 000000000000001f RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff888020ec0000 RSI: ffffffff8165758c RDI: fffff520007b1e5e
RBP: ffff8880261c8000 R08: 000000000000001f R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffff8880282fb500
R13: 0000000000000000 R14: ffff8880261c80e0 R15: 0000000000000000
FS:  0000555556f2a300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020004200 CR3: 00000000229ee000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 hfs_bmap_alloc+0x51b/0x5b0 fs/hfs/btree.c:291
 hfs_btree_inc_height.isra.0+0xe6/0x950 fs/hfs/brec.c:471
 hfs_brec_insert+0x851/0xbb0 fs/hfs/brec.c:148
 __hfs_ext_write_extent+0x3ec/0x510 fs/hfs/extent.c:124
 __hfs_ext_cache_extent fs/hfs/extent.c:174 [inline]
 hfs_ext_read_extent+0x81c/0xa20 fs/hfs/extent.c:202
 hfs_extend_file+0x4b5/0xae0 fs/hfs/extent.c:401
 hfs_get_block+0x17f/0x820 fs/hfs/extent.c:353
 __block_write_begin_int+0x3bd/0x14b0 fs/buffer.c:1991
 __block_write_begin fs/buffer.c:2041 [inline]
 block_write_begin+0xb9/0x4d0 fs/buffer.c:2102
 cont_write_begin+0x534/0x740 fs/buffer.c:2456
 hfs_write_begin+0x87/0x150 fs/hfs/inode.c:58
 generic_perform_write+0x256/0x570 mm/filemap.c:3753
 __generic_file_write_iter+0x2ae/0x4d0 mm/filemap.c:3881
 generic_file_write_iter+0xe3/0x350 mm/filemap.c:3913
 call_write_iter include/linux/fs.h:2191 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x9ed/0xdd0 fs/read_write.c:584
 ksys_write+0x12b/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6af3d0b9c9
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:00007ffc6e92dd68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f6af3d0b9c9
RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
RBP: 00007ffc6e92dd90 R08: 0000000000000001 R09: 00007ffc6e92dda0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005
R13: 00007ffc6e92ddd0 R14: 00007ffc6e92ddb0 R15: 0000000000000039
 </TASK>