[ 13.480625] random: sshd: uninitialized urandom read (32 bytes read, 31 bits of entropy available) [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 22.733156] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 23.088408] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 23.642923] random: sshd: uninitialized urandom read (32 bytes read, 99 bits of entropy available) [ 48.626033] random: sshd: uninitialized urandom read (32 bytes read, 114 bits of entropy available) Warning: Permanently added 'ci-android-44-kasan-gce-3,10.128.0.23' (ECDSA) to the list of known hosts. [ 54.012844] random: sshd: uninitialized urandom read (32 bytes read, 118 bits of entropy available) executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 54.130438] IPVS: Creating netns size=2552 id=1 executing program [ 54.161678] IPVS: Creating netns size=2552 id=2 executing program [ 54.182913] IPVS: Creating netns size=2552 id=3 executing program [ 54.216439] IPVS: Creating netns size=2552 id=4 executing program [ 54.249385] IPVS: Creating netns size=2552 id=5 executing program [ 54.282190] IPVS: Creating netns size=2552 id=6 executing program [ 54.314796] IPVS: Creating netns size=2552 id=7 executing program [ 54.338901] IPVS: Creating netns size=2552 id=8 executing program [ 54.373227] IPVS: Creating netns size=2552 id=9 executing program [ 55.386269] IPVS: Creating netns size=2552 id=10 executing program [ 55.409969] IPVS: Creating netns size=2552 id=11 executing program [ 55.444936] IPVS: Creating netns size=2552 id=12 executing program [ 55.480755] IPVS: Creating netns size=2552 id=13 executing program [ 55.506496] IPVS: Creating netns size=2552 id=14 executing program [ 55.532639] IPVS: Creating netns size=2552 id=15 executing program [ 55.569087] IPVS: Creating netns size=2552 id=16 executing program [ 55.596362] IPVS: Creating netns size=2552 id=17 executing program [ 55.623694] IPVS: Creating netns size=2552 id=18 [ 63.180235] pktgen: kernel_thread() failed for cpu 0 [ 63.185374] pktgen: Cannot create thread for cpu 0 (-4) [ 63.190733] pktgen: kernel_thread() failed for cpu 1 [ 63.195862] pktgen: Cannot create thread for cpu 1 (-4) [ 63.201207] pktgen: Initialization failed for all threads [ 63.265494] kasan: CONFIG_KASAN_INLINE enabled [ 63.269910] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 63.282864] Dumping ftrace buffer: [ 63.286370] (ftrace buffer empty) [ 63.290056] Modules linked in: [ 63.293324] CPU: 1 PID: 3397 Comm: syzkaller766597 Not tainted 4.4.104-ged884eb #2 [ 63.300990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.310309] task: ffff8801d2fedf00 task.stack: ffff8801d2ff8000 [ 63.316327] RIP: 0010:[] [] nfqnl_nf_hook_drop+0x154/0x310 [ 63.325237] RSP: 0018:ffff8801d2fff9b0 EFLAGS: 00010202 [ 63.330647] RAX: 0000000000000007 RBX: 0000000000000003 RCX: 1ffffffff08fc631 [ 63.338365] RDX: 0000000000000000 RSI: ffffffff839fd420 RDI: ffffffff847e3188 [ 63.345597] RBP: ffff8801d2fff9e0 R08: 0000000000000001 R09: 0000000000000000 [ 63.352828] R10: 0000000000000000 R11: 1ffff1003a5fff02 R12: dffffc0000000000 [ 63.360061] R13: ffff8801d2b1e008 R14: 0000000000000038 R15: 00000000000000b8 [ 63.367296] FS: 0000000001f3b880(0063) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 63.375490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.381334] CR2: 00007f6c949f3000 CR3: 00000001d721e000 CR4: 00000000001406e0 [ 63.388570] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.395804] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.403035] Stack: [ 63.405146] ffffffff82f4568d ffffffff83cc3e60 ffff8801d2e29e40 ffff8801d2b1e008 [ 63.413082] ffff8801d2e2a8f8 ffffffff843dd188 ffff8801d2fffa10 ffffffff82f3da2b [ 63.421022] ffffffff82f3d990 ffff8801d2b1e008 ffffffff843dd160 ffff8801d2b1e000 [ 63.428970] Call Trace: [ 63.431524] [] ? nfqnl_nf_hook_drop+0xdd/0x310 [ 63.437716] [] nf_queue_nf_hook_drop+0x9b/0x180 [ 63.443993] [] ? nf_queue_entry_release_refs+0x120/0x120 [ 63.451055] [] nf_unregister_net_hook+0x1f4/0x310 [ 63.457509] [] netfilter_net_exit+0x36/0xa0 [ 63.463439] [] ops_exit_list.isra.4+0x8b/0x120 [ 63.469631] [] setup_net+0x20e/0x3d0 [ 63.474958] [] ? ops_init+0x360/0x360 [ 63.480369] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 63.487171] [] copy_net_ns+0xa6/0x140 [ 63.492584] [] create_new_namespaces+0x2d3/0x580 [ 63.498956] [] copy_namespaces+0x225/0x2b0 [ 63.504815] [] ? copy_namespaces+0x39/0x2b0 [ 63.510751] [] copy_process+0x1bb5/0x5c20 [ 63.516509] [] ? pipe_write+0x6be/0xe30 [ 63.522093] [] ? __cleanup_sighand+0x30/0x30 [ 63.528112] [] ? fsnotify+0xe40/0xe40 [ 63.533521] [] _do_fork+0x107/0xce0 [ 63.538755] [] ? fork_idle+0x240/0x240 [ 63.544258] [] ? SyS_write+0xd3/0x1c0 [ 63.549668] [] ? SyS_read+0x1c0/0x1c0 [ 63.555078] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 63.561535] [] SyS_clone+0x14/0x20 [ 63.566688] [] entry_SYSCALL_64_fastpath+0x16/0x76 [ 63.573224] 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 [ 63.599452] RIP [] nfqnl_nf_hook_drop+0x154/0x310 [ 63.606018] RSP [ 63.609744] ---[ end trace caa16f5357174332 ]--- [ 63.614482] Kernel panic - not syncing: Fatal exception [ 63.620307] Dumping ftrace buffer: [ 63.623811] (ftrace buffer empty) [ 63.627485] Kernel Offset: disabled [ 63.631072] Rebooting in 86400 seconds..