</TASK> hfs: new node 0 already hashed? ------------[ cut here ]------------ WARNING: CPU: 1 PID: 9533 at fs/hfs/bnode.c:422 hfs_bnode_create+0x3b6/0x440 fs/hfs/bnode.c:422 Modules linked in: CPU: 1 UID: 0 PID: 9533 Comm: syz.2.369 Not tainted 6.14.0-rc5-syzkaller-00234-gb7c90e3e717a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:hfs_bnode_create+0x3b6/0x440 fs/hfs/bnode.c:422 Code: 44 89 e6 e8 2c 2e 82 fe e9 78 fd ff ff e8 d2 0a 1d ff 4c 89 ff e8 4a e0 5e 09 48 c7 c7 40 1c 41 8c 44 89 e6 e8 0b 2e 82 fe 90 <0f> 0b 90 eb af 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 83 fc ff ff 48 RSP: 0018:ffffc900033c6d18 EFLAGS: 00010246 RAX: 000000000000001f RBX: ffff888078fe4500 RCX: 53a2d762d0ad2e00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff81a1352c R09: 1ffff92000678d40 R10: dffffc0000000000 R11: fffff52000678d41 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff8880768ae000 R15: ffff8880768ae0e0 FS: 00007f6654bf86c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056390bbc67f0 CR3: 000000007b066000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> hfs_bmap_alloc+0x5a6/0x650 fs/hfs/btree.c:291 hfs_btree_inc_height+0x11e/0xd20 fs/hfs/brec.c:471 hfs_brec_insert+0x723/0xbd0 fs/hfs/brec.c:148 __hfs_ext_write_extent+0x2f2/0x4f0 fs/hfs/extent.c:124 __hfs_ext_cache_extent+0x6a/0x990 fs/hfs/extent.c:174 hfs_ext_read_extent fs/hfs/extent.c:202 [inline] hfs_extend_file+0x344/0x13e0 fs/hfs/extent.c:401 hfs_get_block+0x3e4/0xb60 fs/hfs/extent.c:353 __block_write_begin_int+0x692/0x19a0 fs/buffer.c:2116 block_write_begin fs/buffer.c:2226 [inline] cont_write_begin+0x77f/0xb40 fs/buffer.c:2577 hfs_write_begin+0x68/0xb0 fs/hfs/inode.c:52 cont_expand_zero fs/buffer.c:2504 [inline] cont_write_begin+0x32b/0xb40 fs/buffer.c:2567 hfs_write_begin+0x68/0xb0 fs/hfs/inode.c:52 hfs_file_truncate+0x1ed/0xa20 fs/hfs/extent.c:494 hfs_inode_setattr+0x458/0x620 fs/hfs/inode.c:654 notify_change+0xbca/0xe90 fs/attr.c:552 do_truncate+0x220/0x310 fs/open.c:65 vfs_truncate+0x492/0x530 fs/open.c:115 do_sys_truncate+0xdb/0x190 fs/open.c:138 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6653d8d169 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:00007f6654bf8038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 00007f6653fa5fa0 RCX: 00007f6653d8d169 RDX: 0000000000000000 RSI: 0000000000003f00 RDI: 0000400000000280 RBP: 00007f6654bf8090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 00007f6653fa5fa0 R15: 00007ffdd8b176d8 </TASK>