netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'.
IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
general protection fault: 0000 [#1] PREEMPT SMP KASAN
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
CPU: 0 PID: 7058 Comm: syz-executor.4 Not tainted 4.19.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:dccp_timeout_nlattr_to_obj+0x5a/0x240 net/netfilter/nf_conntrack_proto_dccp.c:690
Code: 89 d8 48 c1 e8 03 42 0f b6 0c 30 48 89 d8 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 71 01 00 00 4c 89 e0 44 8b 3b 48 c1 e8 03 <42> 0f b6 0c 30 4c 89 e0 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85
RSP: 0018:ffff880091ad74a8 EFLAGS: 00010246
IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
RAX: 0000000000000000 RBX: ffff88008d0dd8ac RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88008d0dd8d0 RDI: ffff88008c22e880
RBP: ffff880091ad74e0 R08: dffffc0000000000 R09: 0000000000000005
R10: ffffed0011845d17 R11: ffff88008c22e8bf R12: 0000000000000000
R13: ffff88008c22e880 R14: dffffc0000000000 R15: 0000000000005dc0
FS:  00007fc53a857700(0000) GS:ffff8800aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f14298ca000 CR3: 00000000a80b4000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ctnl_timeout_parse_policy+0x130/0x1b0 net/netfilter/nfnetlink_cttimeout.c:67
 cttimeout_default_set+0x13f/0x1a0 net/netfilter/nfnetlink_cttimeout.c:372
IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
 nfnetlink_rcv_msg+0x942/0xc10 net/netfilter/nfnetlink.c:228
 netlink_rcv_skb+0x142/0x390 net/netlink/af_netlink.c:2447
 nfnetlink_rcv+0x163/0x3b0 net/netfilter/nfnetlink.c:560
 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline]
 netlink_unicast+0x443/0x650 net/netlink/af_netlink.c:1336
 netlink_sendmsg+0x765/0xc40 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:621 [inline]
 sock_sendmsg+0xb5/0xf0 net/socket.c:631
 ___sys_sendmsg+0x647/0x950 net/socket.c:2114
 __sys_sendmsg+0xd9/0x180 net/socket.c:2152
 __do_sys_sendmsg net/socket.c:2161 [inline]
 __se_sys_sendmsg net/socket.c:2159 [inline]
 __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2159
 do_syscall_64+0xd0/0x4d0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45af49
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fc53a856c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045af49
RDX: 0000000000000940 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc53a8576d4
R13: 00000000004c9fec R14: 00000000004e2e30 R15: 00000000ffffffff
Modules linked in:
device veth0_vlan entered promiscuous mode
---[ end trace 91f044ec97337a79 ]---
device veth1_vlan entered promiscuous mode
RIP: 0010:dccp_timeout_nlattr_to_obj+0x5a/0x240 net/netfilter/nf_conntrack_proto_dccp.c:690
IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready
Code: 89 d8 48 c1 e8 03 42 0f b6 0c 30 48 89 d8 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 71 01 00 00 4c 89 e0 44 8b 3b 48 c1 e8 03 <42> 0f b6 0c 30 4c 89 e0 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85
IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready
RSP: 0018:ffff880091ad74a8 EFLAGS: 00010246
IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready
RAX: 0000000000000000 RBX: ffff88008d0dd8ac RCX: 0000000000000000
IPv6: ADDRCONF(NETDEV_UP): veth1_virt_wifi: link is not ready
RDX: 0000000000000000 RSI: ffff88008d0dd8d0 RDI: ffff88008c22e880
device veth1_vlan entered promiscuous mode
RBP: ffff880091ad74e0 R08: dffffc0000000000 R09: 0000000000000005
IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready
R10: ffffed0011845d17 R11: ffff88008c22e8bf R12: 0000000000000000
IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
R13: ffff88008c22e880 R14: dffffc0000000000 R15: 0000000000005dc0
IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
FS:  00007fc53a857700(0000) GS:ffff8800aea00000(0000) knlGS:0000000000000000
IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
CR2: 000056284915caf8 CR3: 00000000a80b4000 CR4: 00000000001406f0
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400