bridge0: port 1(bridge_slave_0) entered forwarding state
IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
bridge0: port 2(bridge_slave_1) entered forwarding state
bridge0: port 2(bridge_slave_1) entered forwarding state
IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready
BUG: unable to handle kernel NULL pointer dereference at 0000000000000004
IP: [<ffffffff82146136>] nla_get_u16 include/net/netlink.h:1012 [inline]
IP: [<ffffffff82146136>] dsmark_init+0x46/0x170 net/sched/sch_dsmark.c:361
PGD b405c067 PUD b5617067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP 
Modules linked in:
CPU: 1 PID: 5702 Comm: syz-executor.3 Not tainted 4.1.0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800b544c310 ti: ffff8800b35cc000 task.ti: ffff8800b35cc000
RIP: 0010:[<ffffffff82146136>]  [<ffffffff82146136>] nla_get_u16 include/net/netlink.h:1012 [inline]
RIP: 0010:[<ffffffff82146136>]  [<ffffffff82146136>] dsmark_init+0x46/0x170 net/sched/sch_dsmark.c:361
RSP: 0018:ffff8800b35cf9c8  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8800b3bbb600 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000005 RDI: ffff8800b3bbba34
RBP: ffff8800b35cfa18 R08: ffffffff82a5b4b0 R09: ffff8800b35cf9c8
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8800b7a54000
R13: 00000000fffffff4 R14: ffffffff83421c60 R15: ffff8800b35cfad0
FS:  00007fcecafd8700(0000) GS:ffff88012c100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 0000000128a1b000 CR4: 00000000001407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 0000000000000000 0000000000000000 ffff8800b3bbba34 0000000000000000
 0000000000000000 0000000000000000 ffff8800b3bbb600 ffff8800b7a54000
 00000000fffffff4 ffffffff83421c60 ffff8800b35cfa88 ffffffff82130759
Call Trace:
 [<ffffffff82130759>] qdisc_create+0xc9/0x4d0 net/sched/sch_api.c:949
 [<ffffffff82130cee>] tc_modify_qdisc+0x18e/0x660 net/sched/sch_api.c:1301
 [<ffffffff82109da3>] rtnetlink_rcv_msg+0x83/0x230 net/core/rtnetlink.c:3250
 [<ffffffff8216eb49>] netlink_rcv_skb+0xa9/0xd0 net/netlink/af_netlink.c:2843
 [<ffffffff82109d09>] rtnetlink_rcv+0x29/0x40 net/core/rtnetlink.c:3256
 [<ffffffff8216e49a>] netlink_unicast_kernel net/netlink/af_netlink.c:1763 [inline]
 [<ffffffff8216e49a>] netlink_unicast+0x1ca/0x2e0 net/netlink/af_netlink.c:1789
 [<ffffffff8216e8c0>] netlink_sendmsg+0x310/0x3d0 net/netlink/af_netlink.c:2353
 [<ffffffff820d6895>] sock_sendmsg_nosec net/socket.c:613 [inline]
 [<ffffffff820d6895>] sock_sendmsg+0x35/0x40 net/socket.c:623
 [<ffffffff820d7233>] ___sys_sendmsg+0x2c3/0x2d0 net/socket.c:1955
 [<ffffffff820d828d>] __sys_sendmsg+0x3d/0x80 net/socket.c:1989
 [<ffffffff820d82dd>] SYSC_sendmsg net/socket.c:2000 [inline]
 [<ffffffff820d82dd>] SyS_sendmsg+0xd/0x20 net/socket.c:1996
 [<ffffffff8264cc72>] system_call_fastpath+0x16/0x7a
Code: 55 41 54 53 48 89 fb 48 8d 7d b0 48 83 ec 30 0f b7 0e be 05 00 00 00 83 e9 04 e8 c6 85 7c ff 85 c0 0f 88 bc 00 00 00 48 8b 45 b8 <0f> b7 78 04 f3 40 0f b8 c7 83 f8 01 41 89 fc 0f 85 e5 00 00 00 
RIP  [<ffffffff82146136>] nla_get_u16 include/net/netlink.h:1012 [inline]
RIP  [<ffffffff82146136>] dsmark_init+0x46/0x170 net/sched/sch_dsmark.c:361
 RSP <ffff8800b35cf9c8>
CR2: 0000000000000004
---[ end trace 31859ac8c26cdced ]---