loop8: detected capacity change from 0 to 64 hfs: new node 4 already hashed? ------------[ cut here ]------------ 1 WARNING: fs/hfs/bnode.c:478 at hfs_bnode_create+0x45a/0x4e0 fs/hfs/bnode.c:478, CPU#1: syz.8.204/7558 Modules linked in: CPU: 1 UID: 0 PID: 7558 Comm: syz.8.204 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 RIP: 0010:hfs_bnode_create+0x45a/0x4e0 fs/hfs/bnode.c:478 Code: 89 8b 89 ee e8 27 39 76 fe e9 d6 fc ff ff e8 0d ab 15 ff 4c 89 ef e8 85 ae ab 08 48 c7 c7 80 79 89 8b 89 ee e8 07 39 76 fe 90 <0f> 0b 90 eb b0 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c dd fb ff ff RSP: 0018:ffffc900050df448 EFLAGS: 00010246 RAX: 000000000000001f RBX: ffff888062008000 RCX: 6c1ca8c910475f00 RDX: ffffc90006d59000 RSI: 0000000000000abd RDI: 0000000000000abe RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52000a1be39 R12: 0000000000000004 R13: ffff8880620080d0 R14: ffff888042f9e600 R15: dffffc0000000000 FS: 00007fb1c6c766c0(0000) GS:ffff888124abb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000060074000 CR4: 00000000003526f0 Call Trace: hfs_bnode_split+0xd4/0x1070 fs/hfsplus/brec.c:-1 hfs_brec_insert+0x3a4/0xc80 fs/hfs/brec.c:102 hfs_cat_create+0x537/0x870 fs/hfs/catalog.c:131 hfs_create+0x78/0xe0 fs/hfs/dir.c:196 lookup_open+0xc17/0x1a60 fs/namei.c:4596 open_last_lookups fs/namei.c:4796 [inline] path_openat+0x67c/0x1d60 fs/namei.c:5026 do_file_open+0x23e/0x4a0 fs/namei.c:5058 do_sys_openat2+0x115/0x200 fs/open.c:1417 do_sys_open fs/open.c:1423 [inline] __do_sys_open fs/open.c:1431 [inline] __se_sys_open fs/open.c:1427 [inline] __x64_sys_open+0x11e/0x150 fs/open.c:1427 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb1c8a1e1d9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb1c6c76028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007fb1c8ca5fa0 RCX: 00007fb1c8a1e1d9 RDX: 0000000000000000 RSI: 00000000001ad941 RDI: 000020000000cf40 RBP: 00007fb1c8ab5888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fb1c8ca6038 R14: 00007fb1c8ca5fa0 R15: 00007ffe928551a8