syz.0.0 (5319) used greatest stack depth: 9136 bytes left loop0: detected capacity change from 0 to 1024 netlink: 40 bytes leftover after parsing attributes in process `syz.0.0'. hfsplus: new node 0 already hashed? ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5319 at fs/hfsplus/bnode.c:573 hfsplus_bnode_create+0x3b6/0x440 fs/hfsplus/bnode.c:573 Modules linked in: CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.14.0-rc7-syzkaller-00179-gb3ee1e460951 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:hfsplus_bnode_create+0x3b6/0x440 fs/hfsplus/bnode.c:573 Code: 44 89 e6 e8 3c 34 81 fe e9 78 fd ff ff e8 32 0e 1c ff 4c 89 ff e8 4a f3 65 09 48 c7 c7 00 1c 41 8c 44 89 e6 e8 1b 34 81 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:ffffc900019b7078 EFLAGS: 00010246 RAX: 0000000000000023 RBX: ffff888033dc9100 RCX: 8bef000b1b3d9200 RDX: ffffc9000e40a000 RSI: 0000000000000e69 RDI: 0000000000000e6a RBP: 0000000000000000 R08: ffffffff81a136fc R09: 1ffff92000336dac R10: dffffc0000000000 R11: fffff52000336dad R12: 0000000000000000 R13: dffffc0000000000 R14: ffff8880348a0000 R15: ffff8880348a00e0 FS: 00007f1b4abf56c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1b4267fc00 CR3: 000000004354a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hfsplus_bmap_alloc+0x59a/0x640 fs/hfsplus/btree.c:415 hfs_bnode_split+0xde/0x1110 fs/hfsplus/brec.c:245 hfsplus_brec_insert+0x3a6/0xde0 fs/hfsplus/brec.c:100 hfsplus_create_cat+0xef6/0x1b70 fs/hfsplus/catalog.c:308 hfsplus_mknod+0x16a/0x2a0 fs/hfsplus/dir.c:494 lookup_open fs/namei.c:3651 [inline] open_last_lookups fs/namei.c:3750 [inline] path_openat+0x193c/0x3590 fs/namei.c:3986 do_filp_open+0x27f/0x4e0 fs/namei.c:4016 do_sys_openat2+0x13e/0x1d0 fs/open.c:1428 do_sys_open fs/open.c:1443 [inline] __do_sys_open fs/open.c:1451 [inline] __se_sys_open fs/open.c:1447 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1447 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: 0033:0x7f1b4e78d169 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:00007f1b4abf5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f1b4e9a5fa0 RCX: 00007f1b4e78d169 RDX: 0000000000000000 RSI: 0000000400141042 RDI: 0000200000000080 RBP: 00007f1b4e80e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1b4e9a5fa0 R15: 00007fff6b34c6f8