netlink: 'syz-executor1': attribute type 4 has an invalid length.
list_del corruption, ffff880173d75a68->next is LIST_POISON1 (dead000000000100)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:47!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10747 Comm: syz-executor4 Not tainted 4.19.0-rc4+ #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_del_entry_valid.cold.1+0x26/0x58 lib/list_debug.c:45
Code: d4 fd 0f 0b 4c 89 e2 48 89 de 48 c7 c7 40 a3 44 88 e8 da 6c d4 fd 0f 0b 4c 89 ea 48 89 de 48 c7 c7 e0 a2 44 88 e8 c6 6c d4 fd <0f> 0b 48 89 de 48 c7 c7 00 a4 44 88 e8 b5 6c d4 fd 0f 0b 48 89 de
RSP: 0000:ffff880187697150 EFLAGS: 00010286
RAX: 000000000000004e RBX: ffff880173d75a68 RCX: ffffc90004ad2000
RDX: 0000000000000000 RSI: ffffffff81650d15 RDI: 0000000000000005
RBP: ffff880187697168 R08: ffff88018fe4c0c0 R09: ffffed003b5e4fe8
R10: ffffed003b5e4fe8 R11: ffff8801daf27f47 R12: dead000000000200
R13: dead000000000100 R14: ffff880173d60b40 R15: dffffc0000000000
FS:  00007fbd7d931700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3903d4e3e0 CR3: 0000000172065000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_del_entry include/linux/list.h:117 [inline]
 list_del include/linux/list.h:125 [inline]
 p9_fd_cancelled+0x80/0x2f0 net/9p/trans_fd.c:712
 p9_client_flush+0x255/0x2a0 net/9p/client.c:691
 p9_client_rpc+0x1284/0x1480 net/9p/client.c:800
 p9_client_version net/9p/client.c:971 [inline]
 p9_client_create+0xc1b/0x160a net/9p/client.c:1058
 v9fs_session_init+0x217/0x1a70 fs/9p/v9fs.c:400
 v9fs_mount+0x7d/0x8f0 fs/9p/vfs_super.c:135
 mount_fs+0xae/0x31d fs/super.c:1261
 vfs_kern_mount.part.35+0xdc/0x4f0 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2457 [inline]
 do_mount+0x581/0x31f0 fs/namespace.c:2787
 ksys_mount+0x12d/0x140 fs/namespace.c:3003
 __do_sys_mount fs/namespace.c:3017 [inline]
 __se_sys_mount fs/namespace.c:3014 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3014
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457679
Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fbd7d930c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fbd7d9316d4 RCX: 0000000000457679
RDX: 0000000020000900 RSI: 0000000020000000 RDI: 0000000000000000
RBP: 000000000072c040 R08: 0000000020000840 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004d3b70 R14: 00000000004c2980 R15: 0000000000000002
Modules linked in:
---[ end trace 8153dc425ed228c9 ]---
RIP: 0010:__list_del_entry_valid.cold.1+0x26/0x58 lib/list_debug.c:45
Code: d4 fd 0f 0b 4c 89 e2 48 89 de 48 c7 c7 40 a3 44 88 e8 da 6c d4 fd 0f 0b 4c 89 ea 48 89 de 48 c7 c7 e0 a2 44 88 e8 c6 6c d4 fd <0f> 0b 48 89 de 48 c7 c7 00 a4 44 88 e8 b5 6c d4 fd 0f 0b 48 89 de
RSP: 0000:ffff880187697150 EFLAGS: 00010286
RAX: 000000000000004e RBX: ffff880173d75a68 RCX: ffffc90004ad2000
RDX: 0000000000000000 RSI: ffffffff81650d15 RDI: 0000000000000005
RBP: ffff880187697168 R08: ffff88018fe4c0c0 R09: ffffed003b5e4fe8
R10: ffffed003b5e4fe8 R11: ffff8801daf27f47 R12: dead000000000200
R13: dead000000000100 R14: ffff880173d60b40 R15: dffffc0000000000
FS:  00007fbd7d931700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3903d4e3e0 CR3: 0000000172065000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400