netlink: 20 bytes leftover after parsing attributes in process `syz-executor926'.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor926'.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 7979 Comm: syz-executor926 Not tainted 4.14.218-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880959ea300 task.stack: ffff8880b3a50000
RIP: 0010:__write_once_size syzkaller/managers/linux-4-14/kernel/./include/linux/compiler.h:210 [inline]
RIP: 0010:__hlist_del syzkaller/managers/linux-4-14/kernel/./include/linux/list.h:679 [inline]
RIP: 0010:hlist_del_rcu syzkaller/managers/linux-4-14/kernel/./include/linux/rculist.h:427 [inline]
RIP: 0010:vxlan_fdb_destroy+0xb4/0x1f0 syzkaller/managers/linux-4-14/kernel/drivers/net/vxlan.c:787
RSP: 0018:ffff8880b3a57150 EFLAGS: 00010a02
RAX: dffffc0000000000 RBX: ffff8880afc86d80 RCX: 1ffff1101674ae20
RDX: 1bd5a00000000040 RSI: ffff8880afc86d80 RDI: ffff8880afc86d88
RBP: 0000000000000000 R08: ffffffff8b9be5a8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dead000000000200
R13: 0000000000000000 R14: ffff8880b3a57250 R15: ffff8880b46be500
FS:  00007fb3c3a71700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563949a716e8 CR3: 00000000a9488000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __vxlan_dev_create+0x3b0/0x710 syzkaller/managers/linux-4-14/kernel/drivers/net/vxlan.c:3281
 vxlan_newlink+0xa3/0xe0 syzkaller/managers/linux-4-14/kernel/drivers/net/vxlan.c:3502
 rtnl_newlink+0xf88/0x1830 syzkaller/managers/linux-4-14/kernel/net/core/rtnetlink.c:2728
 rtnetlink_rcv_msg+0x3be/0xb10 syzkaller/managers/linux-4-14/kernel/net/core/rtnetlink.c:4316
 netlink_rcv_skb+0x125/0x390 syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:2433
 netlink_unicast_kernel syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:1287 [inline]
 netlink_unicast+0x437/0x610 syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:1313
 netlink_sendmsg+0x62e/0xb80 syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:1878
 sock_sendmsg_nosec syzkaller/managers/linux-4-14/kernel/net/socket.c:646 [inline]
 sock_sendmsg+0xb5/0x100 syzkaller/managers/linux-4-14/kernel/net/socket.c:656
 sock_no_sendpage+0xe2/0x110 syzkaller/managers/linux-4-14/kernel/net/core/sock.c:2595
 kernel_sendpage syzkaller/managers/linux-4-14/kernel/net/socket.c:3407 [inline]
 sock_sendpage+0xdf/0x140 syzkaller/managers/linux-4-14/kernel/net/socket.c:871
 pipe_to_sendpage+0x226/0x2d0 syzkaller/managers/linux-4-14/kernel/fs/splice.c:451
 splice_from_pipe_feed syzkaller/managers/linux-4-14/kernel/fs/splice.c:502 [inline]
 __splice_from_pipe+0x326/0x7a0 syzkaller/managers/linux-4-14/kernel/fs/splice.c:626
 splice_from_pipe syzkaller/managers/linux-4-14/kernel/fs/splice.c:661 [inline]
 generic_splice_sendpage+0xc1/0x110 syzkaller/managers/linux-4-14/kernel/fs/splice.c:832
 do_splice_from syzkaller/managers/linux-4-14/kernel/fs/splice.c:851 [inline]
 do_splice syzkaller/managers/linux-4-14/kernel/fs/splice.c:1147 [inline]
 SYSC_splice syzkaller/managers/linux-4-14/kernel/fs/splice.c:1402 [inline]
 SyS_splice+0xd59/0x1380 syzkaller/managers/linux-4-14/kernel/fs/splice.c:1382
 do_syscall_64+0x1d5/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x444dc9
RSP: 002b:00007fb3c3a712f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 00000000004ca458 RCX: 0000000000444dc9
RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00000000004ca450 R08: 000000000004ffe2 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004ca45c
R13: 000000000049a004 R14: 0000006e616c7876 R15: 0000000000022000
Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 11 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 08 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 09 01 00 00 48 85 ed 49 89 2c 24 74 28 e8 f4 
RIP: __write_once_size syzkaller/managers/linux-4-14/kernel/./include/linux/compiler.h:210 [inline] RSP: ffff8880b3a57150
RIP: __hlist_del syzkaller/managers/linux-4-14/kernel/./include/linux/list.h:679 [inline] RSP: ffff8880b3a57150
RIP: hlist_del_rcu syzkaller/managers/linux-4-14/kernel/./include/linux/rculist.h:427 [inline] RSP: ffff8880b3a57150
RIP: vxlan_fdb_destroy+0xb4/0x1f0 syzkaller/managers/linux-4-14/kernel/drivers/net/vxlan.c:787 RSP: ffff8880b3a57150
---[ end trace 5cae9c38a5657709 ]---