kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 11367 Comm: syz-executor.2 Not tainted 4.19.149-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__write_once_size include/linux/compiler.h:220 [inline]
RIP: 0010:__hlist_del include/linux/list.h:679 [inline]
RIP: 0010:hlist_del_rcu include/linux/rculist.h:457 [inline]
RIP: 0010:vxlan_fdb_destroy drivers/net/vxlan.c:788 [inline]
RIP: 0010:__vxlan_dev_create+0x552/0x9b0 drivers/net/vxlan.c:3274
Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 11 04 00 00 48 ba 00 00 00 00 00 fc ff df 49 8b 45 08 48 89 c1 48 c1 e9 03 <80> 3c 11 00 0f 85 dd 03 00 00 4d 85 f6 4c 89 30 48 89 04 24 74 2c
RSP: 0018:ffff88809f5a6dd8 EFLAGS: 00010a02
RAX: dead000000000200 RBX: 1ffff11013eb4dbe RCX: 1bd5a00000000040
RDX: dffffc0000000000 RSI: ffffffff84b6f670 RDI: ffff8880a7132508
RBP: ffff88804be0ddc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 00000000fffffff0
R13: ffff8880a7132500 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f9adc448700(0000) GS:ffff8880ae300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000016a9e60 CR3: 000000008613d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vxlan_newlink+0xc0/0x120 drivers/net/vxlan.c:3501
 rtnl_newlink+0x1027/0x15b0 net/core/rtnetlink.c:3141
 rtnetlink_rcv_msg+0x498/0xc10 net/core/rtnetlink.c:4778
 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x717/0xcc0 net/netlink/af_netlink.c:1909
 sock_sendmsg_nosec net/socket.c:622 [inline]
 sock_sendmsg+0xc7/0x130 net/socket.c:632
 sock_no_sendpage+0xf5/0x140 net/core/sock.c:2668
 kernel_sendpage net/socket.c:3378 [inline]
 sock_sendpage+0xdf/0x140 net/socket.c:847
 pipe_to_sendpage+0x268/0x330 fs/splice.c:452
 splice_from_pipe_feed fs/splice.c:503 [inline]
 __splice_from_pipe+0x3af/0x820 fs/splice.c:627
 splice_from_pipe fs/splice.c:662 [inline]
 generic_splice_sendpage+0xd4/0x140 fs/splice.c:833
 do_splice_from fs/splice.c:852 [inline]
 do_splice fs/splice.c:1154 [inline]
 __do_sys_splice fs/splice.c:1428 [inline]
 __se_sys_splice+0xf31/0x15f0 fs/splice.c:1408
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45de89
Code: 0d 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9adc447c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 00000000000350c0 RCX: 000000000045de89
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000118c020 R08: 000000000004ffe2 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfd4
R13: 00007fffac22375f R14: 00007f9adc4489c0 R15: 000000000118bfd4
Modules linked in:
---[ end trace a8fe2a6803846048 ]---
RIP: 0010:__write_once_size include/linux/compiler.h:220 [inline]
RIP: 0010:__hlist_del include/linux/list.h:679 [inline]
RIP: 0010:hlist_del_rcu include/linux/rculist.h:457 [inline]
RIP: 0010:vxlan_fdb_destroy drivers/net/vxlan.c:788 [inline]
RIP: 0010:__vxlan_dev_create+0x552/0x9b0 drivers/net/vxlan.c:3274
Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 11 04 00 00 48 ba 00 00 00 00 00 fc ff df 49 8b 45 08 48 89 c1 48 c1 e9 03 <80> 3c 11 00 0f 85 dd 03 00 00 4d 85 f6 4c 89 30 48 89 04 24 74 2c
RSP: 0018:ffff88809f5a6dd8 EFLAGS: 00010a02
RAX: dead000000000200 RBX: 1ffff11013eb4dbe RCX: 1bd5a00000000040
RDX: dffffc0000000000 RSI: ffffffff84b6f670 RDI: ffff8880a7132508
RBP: ffff88804be0ddc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 00000000fffffff0
R13: ffff8880a7132500 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f9adc448700(0000) GS:ffff8880ae300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa82ddc7020 CR3: 000000008613d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400