R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f78b99a5fa0 R15: 00007ffd090ddde8
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5843 at net/core/dev.c:12400 __dev_change_net_namespace+0x1e2a/0x2030 net/core/dev.c:12400
Modules linked in:
CPU: 0 UID: 0 PID: 5843 Comm: syz.0.16 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__dev_change_net_namespace+0x1e2a/0x2030 net/core/dev.c:12400
Code: 01 90 48 c7 c7 a0 bd 4f 8c 48 c7 c6 a0 bc 4f 8c ba e5 2f 00 00 e8 86 45 5d f8 90 0f 0b 90 90 e9 4f e3 ff ff e8 07 e7 99 f8 90 <0f> 0b 90 e9 6b f7 ff ff e8 f9 e6 99 f8 90 0f 0b 90 e9 02 fb ff ff
RSP: 0018:ffffc90002a2ef00 EFLAGS: 00010293
RAX: ffffffff89249f19 RBX: ffff888010d5870c RCX: ffff888000be8000
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: ffffc90002a2f338 R08: ffffffff8f5cf537 R09: 1ffffffff1eb9ea6
R10: dffffc0000000000 R11: fffffbfff1eb9ea7 R12: dffffc0000000000
R13: 0000000000000000 R14: 00000000fffffff4 R15: 1ffff110021ab0e1
FS:  00007f78ba6536c0(0000) GS:ffff88808d965000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556f80f96138 CR3: 000000004357e000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 cfg802154_switch_netns+0xbf/0x3d0 net/ieee802154/core.c:230
 nl802154_wpan_phy_netns+0x13f/0x210 net/ieee802154/nl802154.c:1292
 genl_family_rcv_msg_doit+0x212/0x300 net/netlink/genetlink.c:1115
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0x60e/0x790 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2552
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0x219/0x270 net/socket.c:729
 ____sys_sendmsg+0x505/0x830 net/socket.c:2617
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2671
 __sys_sendmsg net/socket.c:2703 [inline]
 __do_sys_sendmsg net/socket.c:2708 [inline]
 __se_sys_sendmsg net/socket.c:2706 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2706
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f78b978d169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f78ba653038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f78b99a5fa0 RCX: 00007f78b978d169
RDX: 0000000000000000 RSI: 0000200000000280 RDI: 0000000000000006
RBP: 00007f78ba653090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f78b99a5fa0 R15: 00007ffd090ddde8
 </TASK>