pktgen: Cannot create thread for cpu 1 (-4)
pktgen: Initialization failed for all threads
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3383 Comm: syzkaller654865 Not tainted 4.4.104-ged884eb #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800b882c740 task.stack: ffff8800b5288000
RIP: 0010:[<ffffffff82f45704>]  [<ffffffff82f45704>] __read_once_size /syzkaller/managers/android-44-kasan-gce/kernel/include/linux/compiler.h:218 [inline]
RIP: 0010:[<ffffffff82f45704>]  [<ffffffff82f45704>] nfqnl_nf_hook_drop+0x154/0x310 /syzkaller/managers/android-44-kasan-gce/kernel/net/netfilter/nfnetlink_queue.c:874
RSP: 0018:ffff8800b528f9b0  EFLAGS: 00010202
RAX: 0000000000000007 RBX: 0000000000000003 RCX: 1ffffffff08fc630
RDX: 0000000000000000 RSI: ffffffff839fd420 RDI: ffffffff847e3180
RBP: ffff8800b528f9e0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 1ffff10016a51f02 R12: dffffc0000000000
R13: ffff8800b4c7be38 R14: 0000000000000038 R15: 00000000000000b8
FS:  0000000002227880(0063) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8fb08e9000 CR3: 00000000b7e20000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff82f4568d ffffffff83cc3e60 ffff8800b5be1e40 ffff8800b4c7be38
 ffff8800b5be28f8 ffffffff843dd188 ffff8800b528fa10 ffffffff82f3da2b
 ffffffff82f3d990 ffff8800b4c7be38 ffffffff843dd160 ffff8800b4c7be30
Call Trace:
 [<ffffffff82f3da2b>] nf_queue_nf_hook_drop+0x9b/0x180 /syzkaller/managers/android-44-kasan-gce/kernel/net/netfilter/nf_queue.c:108
 [<ffffffff82f39cc4>] nf_unregister_net_hook+0x1f4/0x310 /syzkaller/managers/android-44-kasan-gce/kernel/net/netfilter/core.c:154
 [<ffffffff82f39e66>] nf_unregister_hook_list /syzkaller/managers/android-44-kasan-gce/kernel/net/netfilter/core.c:434 [inline]
 [<ffffffff82f39e66>] netfilter_net_exit+0x36/0xa0 /syzkaller/managers/android-44-kasan-gce/kernel/net/netfilter/core.c:466
 [<ffffffff82dd4abb>] ops_exit_list.isra.4+0x8b/0x120 /syzkaller/managers/android-44-kasan-gce/kernel/net/core/net_namespace.c:134
 [<ffffffff82dd662e>] setup_net+0x20e/0x3d0 /syzkaller/managers/android-44-kasan-gce/kernel/net/core/net_namespace.c:303
 [<ffffffff82dd7a66>] copy_net_ns+0xa6/0x140 /syzkaller/managers/android-44-kasan-gce/kernel/net/core/net_namespace.c:369
 [<ffffffff81187e83>] create_new_namespaces+0x2d3/0x580 /syzkaller/managers/android-44-kasan-gce/kernel/kernel/nsproxy.c:95
 [<ffffffff81188355>] copy_namespaces+0x225/0x2b0 /syzkaller/managers/android-44-kasan-gce/kernel/kernel/nsproxy.c:150
 [<ffffffff8111f995>] copy_process+0x1bb5/0x5c20 /syzkaller/managers/android-44-kasan-gce/kernel/kernel/fork.c:1497
 [<ffffffff81123da7>] _do_fork+0x107/0xce0 /syzkaller/managers/android-44-kasan-gce/kernel/kernel/fork.c:1775
 [<ffffffff81124a04>] SYSC_clone /syzkaller/managers/android-44-kasan-gce/kernel/kernel/fork.c:1884 [inline]
 [<ffffffff81124a04>] SyS_clone+0x14/0x20 /syzkaller/managers/android-44-kasan-gce/kernel/kernel/fork.c:1878
 [<ffffffff8374b236>] entry_SYSCALL_64_fastpath+0x16/0x76
Code: 74 0d 80 3d a6 d5 88 01 00 0f 84 b0 00 00 00 4d 8d 77 38 49 bc 00 00 00 00 00 fc ff df 49 81 c7 b8 00 00 00 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 0f 85 9f 01 00 00 49 8b 1e e8 59 fb 32 fe 48 85 
RIP  [<ffffffff82f45704>] __read_once_size /syzkaller/managers/android-44-kasan-gce/kernel/include/linux/compiler.h:218 [inline]
RIP  [<ffffffff82f45704>] nfqnl_nf_hook_drop+0x154/0x310 /syzkaller/managers/android-44-kasan-gce/kernel/net/netfilter/nfnetlink_queue.c:874
 RSP <ffff8800b528f9b0>
---[ end trace 4dee8a8031c8e220 ]---