hfsplus: new node 0 already hashed? ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7724 at fs/hfsplus/bnode.c:579 hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:579 Modules linked in: CPU: 1 UID: 0 PID: 7724 Comm: syz.2.251 Not tainted 6.16.0-rc2-syzkaller-00162-g41687a5c6f8b #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:579 Code: a1 8b 89 ee e8 50 bb 91 fe e9 cf fc ff ff e8 56 8c 2a ff 4c 89 ef e8 ae fb cb 08 48 c7 c7 a0 9e a1 8b 89 ee e8 30 bb 91 fe 90 <0f> 0b 90 eb b0 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c d6 fb ff ff RSP: 0018:ffffc9000c4e7100 EFLAGS: 00010246 RAX: 0000000000000023 RBX: ffff88807e1fa000 RCX: 1418ae0e15d04900 RDX: ffffc90004fa9000 RSI: 000000000000ac8b RDI: 000000000000ac8c RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa9ec R12: 0000000000000000 R13: ffff88807e1fa0e0 R14: ffff8880513ad500 R15: dffffc0000000000 FS: 00007fc74295b6c0(0000) GS:ffff888125d83000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f17130c0000 CR3: 000000007a004000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hfsplus_bmap_alloc+0x5af/0x640 fs/hfsplus/btree.c:415 hfs_bnode_split+0xcc/0xef0 fs/hfsplus/brec.c:245 hfsplus_brec_insert+0x38f/0xcc0 fs/hfsplus/brec.c:100 hfsplus_create_cat+0x3b6/0x1000 fs/hfsplus/catalog.c:292 hfsplus_mknod+0x16a/0x290 fs/hfsplus/dir.c:494 lookup_open fs/namei.c:3717 [inline] open_last_lookups fs/namei.c:3816 [inline] path_openat+0x14f1/0x3830 fs/namei.c:4052 do_filp_open+0x1fa/0x410 fs/namei.c:4082 do_sys_openat2+0x121/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_creat fs/open.c:1530 [inline] __se_sys_creat fs/open.c:1524 [inline] __x64_sys_creat+0x8f/0xc0 fs/open.c:1524 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc741b8e929 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:00007fc74295b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007fc741db5fa0 RCX: 00007fc741b8e929 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000e00 RBP: 00007fc741c10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fc741db5fa0 R15: 00007ffc718b12a8