overlay: filesystem on ./bus not supported hfsplus: new node 0 already hashed? ------------[ cut here ]------------ 1 WARNING: fs/hfsplus/bnode.c:631 at hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:631, CPU#0: syz.0.0/5340 Modules linked in: CPU: 0 UID: 0 PID: 5340 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:631 Code: a7 8b 89 ee e8 20 c4 82 fe e9 cf fc ff ff e8 06 c3 1d ff 4c 89 ef e8 ee 61 d8 08 48 c7 c7 00 6d a7 8b 89 ee e8 00 c4 82 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:ffffc9000de2f500 EFLAGS: 00010246 RAX: 0000000000000023 RBX: ffff88804414e000 RCX: 5856789db0304300 RDX: ffffc90020aa2000 RSI: 0000000000003f6b RDI: 0000000000003f6c RBP: 0000000000000000 R08: ffffc9000de2f287 R09: 1ffff92001bc5e50 R10: dffffc0000000000 R11: fffff52001bc5e51 R12: 0000000000000000 R13: ffff88804414e0e0 R14: ffff888012797f00 R15: dffffc0000000000 FS: 00007f5ade5046c0(0000) GS:ffff88808cf1d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f634f37abc0 CR3: 00000000420a6000 CR4: 0000000000352ef0 Call Trace: hfsplus_bmap_alloc+0x747/0xb00 fs/hfsplus/btree.c:421 hfs_bnode_split+0xd4/0x1090 fs/hfsplus/brec.c:245 hfsplus_brec_insert+0x3bc/0xd70 fs/hfsplus/brec.c:100 hfsplus_create_cat+0xa65/0x11b0 fs/hfsplus/catalog.c:308 hfsplus_symlink+0x133/0x260 fs/hfsplus/dir.c:453 vfs_symlink+0x294/0x2d0 fs/namei.c:5523 do_symlinkat+0x1f1/0x3c0 fs/namei.c:5550 __do_sys_symlink fs/namei.c:5576 [inline] __se_sys_symlink fs/namei.c:5574 [inline] __x64_sys_symlink+0x7a/0x90 fs/namei.c:5574 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5add59acb9 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:00007f5ade504028 EFLAGS: 00000246 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 00007f5add815fa0 RCX: 00007f5add59acb9 RDX: 0000000000000000 RSI: 0000200000000980 RDI: 0000200000000440 RBP: 00007f5add608bf7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5add816038 R14: 00007f5add815fa0 R15: 00007ffe730c2e58