[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 15.339971] random: sshd: uninitialized urandom read (32 bytes read, 33 bits of entropy available) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 19.083293] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 19.338211] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 20.080338] random: sshd: uninitialized urandom read (32 bytes read, 81 bits of entropy available) [ 37.840924] random: sshd: uninitialized urandom read (32 bytes read, 96 bits of entropy available) Warning: Permanently added 'ci-android-44-kasan-gce-386-3,10.128.0.13' (ECDSA) to the list of known hosts. [ 43.206885] random: sshd: uninitialized urandom read (32 bytes read, 102 bits of entropy available) executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 43.318761] IPVS: Creating netns size=2552 id=1 executing program [ 43.354171] IPVS: Creating netns size=2552 id=2 executing program [ 43.389168] IPVS: Creating netns size=2552 id=3 executing program [ 43.425304] IPVS: Creating netns size=2552 id=4 executing program [ 43.451935] IPVS: Creating netns size=2552 id=5 executing program [ 43.479669] IPVS: Creating netns size=2552 id=6 executing program [ 43.516882] IPVS: Creating netns size=2552 id=7 executing program [ 43.544439] IPVS: Creating netns size=2552 id=8 executing program [ 44.593799] IPVS: Creating netns size=2552 id=9 executing program [ 44.621505] IPVS: Creating netns size=2552 id=10 executing program [ 44.649961] IPVS: Creating netns size=2552 id=11 executing program [ 44.679557] IPVS: Creating netns size=2552 id=12 executing program [ 44.710652] IPVS: Creating netns size=2552 id=13 executing program [ 44.750054] IPVS: Creating netns size=2552 id=14 executing program [ 44.780708] IPVS: Creating netns size=2552 id=15 executing program [ 44.810515] IPVS: Creating netns size=2552 id=16 executing program [ 44.840639] IPVS: Creating netns size=2552 id=17 [ 51.620055] pktgen: kernel_thread() failed for cpu 0 [ 51.625264] pktgen: Cannot create thread for cpu 0 (-4) [ 51.630635] pktgen: kernel_thread() failed for cpu 1 [ 51.635922] pktgen: Cannot create thread for cpu 1 (-4) [ 51.641265] pktgen: Initialization failed for all threads [ 51.701011] kasan: CONFIG_KASAN_INLINE enabled [ 51.705483] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 51.718264] Dumping ftrace buffer: [ 51.721772] (ftrace buffer empty) [ 51.725449] Modules linked in: [ 51.728721] CPU: 1 PID: 3368 Comm: syzkaller469390 Not tainted 4.4.107-g610c835 #4 [ 51.736395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.745719] task: ffff8800b444c740 task.stack: ffff8800b08f0000 [ 51.751740] RIP: 0010:[] [] nfqnl_nf_hook_drop+0x190/0x3a0 [ 51.760658] RSP: 0018:ffff8800b08f7b30 EFLAGS: 00010202 [ 51.766072] RAX: 0000000000000007 RBX: 0000000000000003 RCX: ffffffff82f9da39 [ 51.773309] RDX: 0000000000000000 RSI: ffffffff839fd520 RDI: ffffffff847e4488 [ 51.780547] RBP: ffff8800b08f7b60 R08: 0000000000000001 R09: 0000000000000000 [ 51.787781] R10: 0000000000000000 R11: 1ffff1001611ef32 R12: dffffc0000000000 [ 51.795019] R13: ffff8801d0e89a88 R14: 0000000000000038 R15: 00000000000000b8 [ 51.802264] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:000000000a0dd840 [ 51.810461] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 51.816311] CR2: 00007f9661687000 CR3: 00000000b4478000 CR4: 00000000001406e0 [ 51.823549] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.830789] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.838024] Stack: [ 51.840147] ffffffff82f9d9b0 ffffffff83cc4ae0 ffff8800b4360000 ffff8801d0e89a88 [ 51.848117] ffff8801d0e89a88 ffff8801d0e89a80 ffff8800b08f7b90 ffffffff82f959ce [ 51.856079] ffffffff82f95910 ffffffff843dd460 ffff8800b4360ab8 dffffc0000000000 [ 51.864052] Call Trace: [ 51.866618] [] ? nfqnl_nf_hook_drop+0x100/0x3a0 [ 51.872915] [] nf_queue_nf_hook_drop+0xbe/0x1d0 [ 51.879200] [] ? nf_queue_entry_release_refs+0x150/0x150 [ 51.886265] [] nf_unregister_net_hook+0x2ab/0x350 [ 51.892721] [] netfilter_net_exit+0x40/0xb0 [ 51.898657] [] ? nf_unregister_net_hooks+0x60/0x60 [ 51.905202] [] ops_exit_list.isra.4+0xae/0x150 [ 51.911405] [] setup_net+0x221/0x3e0 [ 51.916733] [] ? ops_init+0x3a0/0x3a0 [ 51.922150] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 51.928963] [] ? kmem_cache_alloc+0x219/0x290 [ 51.935077] [] copy_net_ns+0xd2/0x190 [ 51.940491] [] create_new_namespaces+0x2f6/0x610 [ 51.946865] [] unshare_nsproxy_namespaces+0xae/0x1e0 [ 51.953582] [] SyS_unshare+0x3da/0x700 [ 51.959081] [] ? SyS_clone+0x50/0x50 [ 51.964409] [] ? SyS_read+0x1b0/0x1b0 [ 51.969828] [] ? do_fast_syscall_32+0xd7/0x890 [ 51.976023] [] ? SyS_clone+0x50/0x50 [ 51.981349] [] do_fast_syscall_32+0x314/0x890 [ 51.987459] [] sysenter_flags_fixed+0xd/0x17 [ 51.993480] Code: 65 83 01 00 0f 84 d8 00 00 00 4d 8d 77 38 49 bc 00 00 00 00 00 fc ff df 49 81 c7 b8 00 00 00 e8 f7 00 3c fe 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 0f 85 f4 01 00 00 49 8b 1e e8 6d 52 2e fe 48 85 [ 52.019943] RIP [] nfqnl_nf_hook_drop+0x190/0x3a0 [ 52.026517] RSP [ 52.030272] ---[ end trace 6748321f285b12bf ]--- [ 52.035044] Kernel panic - not syncing: Fatal exception [ 52.040970] Dumping ftrace buffer: [ 52.044478] (ftrace buffer empty) [ 52.048153] Kernel Offset: disabled [ 52.051743] Rebooting in 86400 seconds..