[ 16.628336] random: sshd: uninitialized urandom read (32 bytes read, 33 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: [ 20.016973] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available) [ 20.397187] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available) [ 21.381412] random: sshd: uninitialized urandom read (32 bytes read, 123 bits of entropy available) [ 26.327803] random: nonblocking pool is initialized Warning: Permanently added 'ci-android-44-kasan-gce-386-0,10.128.0.62' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 34.287498] IPVS: Creating netns size=2552 id=1 executing program [ 34.313354] IPVS: Creating netns size=2552 id=2 executing program [ 34.338159] IPVS: Creating netns size=2552 id=3 executing program [ 34.373707] IPVS: Creating netns size=2552 id=4 executing program [ 34.400960] IPVS: Creating netns size=2552 id=5 executing program [ 34.427699] IPVS: Creating netns size=2552 id=6 executing program [ 34.464057] IPVS: Creating netns size=2552 id=7 executing program [ 34.492480] IPVS: Creating netns size=2552 id=8 executing program [ 35.571620] IPVS: Creating netns size=2552 id=9 executing program [ 35.610016] IPVS: Creating netns size=2552 id=10 executing program executing program [ 35.648341] IPVS: Creating netns size=2552 id=11 [ 35.677524] IPVS: Creating netns size=2552 id=12 executing program [ 35.707001] IPVS: Creating netns size=2552 id=13 executing program [ 35.737149] IPVS: Creating netns size=2552 id=14 executing program [ 35.767507] IPVS: Creating netns size=2552 id=15 executing program [ 35.808209] IPVS: Creating netns size=2552 id=16 [ 42.027898] pktgen: kernel_thread() failed for cpu 0 [ 42.033060] pktgen: Cannot create thread for cpu 0 (-4) [ 42.038430] pktgen: kernel_thread() failed for cpu 1 [ 42.043531] pktgen: Cannot create thread for cpu 1 (-4) [ 42.048865] pktgen: Initialization failed for all threads [ 42.118046] kasan: CONFIG_KASAN_INLINE enabled [ 42.122522] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 42.135325] Dumping ftrace buffer: [ 42.138829] (ftrace buffer empty) [ 42.142510] Modules linked in: [ 42.145779] CPU: 1 PID: 3367 Comm: syzkaller822822 Not tainted 4.4.107-g610c835 #4 [ 42.153448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.162862] task: ffff8801d0fbaf80 task.stack: ffff8801cfc28000 [ 42.168880] RIP: 0010:[] [] nfqnl_nf_hook_drop+0x190/0x3a0 [ 42.177809] RSP: 0018:ffff8801cfc2fb30 EFLAGS: 00010202 [ 42.183221] RAX: 0000000000000007 RBX: 0000000000000003 RCX: ffffffff82f9da39 [ 42.190465] RDX: 0000000000000000 RSI: ffffffff839fd520 RDI: ffffffff847e4488 [ 42.197728] RBP: ffff8801cfc2fb60 R08: 0000000000000001 R09: 0000000000000000 [ 42.204964] R10: 0000000000000000 R11: 1ffff10039f85f32 R12: dffffc0000000000 [ 42.212200] R13: ffff8800b4086e48 R14: 0000000000000038 R15: 00000000000000b8 [ 42.219444] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000009235840 [ 42.227641] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 42.233490] CR2: 00000000018863e0 CR3: 00000001d0deb000 CR4: 00000000001406e0 [ 42.240727] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.247976] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.255212] Stack: [ 42.257324] ffffffff82f9d9b0 ffffffff83cc4ae0 ffff8800b4359e00 ffff8800b4086e48 [ 42.265270] ffff8800b4086e48 ffff8800b4086e40 ffff8801cfc2fb90 ffffffff82f959ce [ 42.273217] ffffffff82f95910 ffffffff843dd460 ffff8800b435a8b8 dffffc0000000000 [ 42.281167] Call Trace: [ 42.283723] [] ? nfqnl_nf_hook_drop+0x100/0x3a0 [ 42.290008] [] nf_queue_nf_hook_drop+0xbe/0x1d0 [ 42.296291] [] ? nf_queue_entry_release_refs+0x150/0x150 [ 42.303367] [] nf_unregister_net_hook+0x2ab/0x350 [ 42.309824] [] netfilter_net_exit+0x40/0xb0 [ 42.315762] [] ? nf_unregister_net_hooks+0x60/0x60 [ 42.322308] [] ops_exit_list.isra.4+0xae/0x150 [ 42.328507] [] setup_net+0x221/0x3e0 [ 42.333839] [] ? ops_init+0x3a0/0x3a0 [ 42.339256] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 42.346064] [] ? kmem_cache_alloc+0x219/0x290 [ 42.352175] [] copy_net_ns+0xd2/0x190 [ 42.357589] [] create_new_namespaces+0x2f6/0x610 [ 42.363958] [] unshare_nsproxy_namespaces+0xae/0x1e0 [ 42.370677] [] SyS_unshare+0x3da/0x700 [ 42.376178] [] ? SyS_clone+0x50/0x50 [ 42.381509] [] ? SyS_read+0x1b0/0x1b0 [ 42.386926] [] ? do_fast_syscall_32+0xd7/0x890 [ 42.393134] [] ? SyS_clone+0x50/0x50 [ 42.398463] [] do_fast_syscall_32+0x314/0x890 [ 42.404575] [] sysenter_flags_fixed+0xd/0x17 [ 42.410593] 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 [ 42.436876] RIP [] nfqnl_nf_hook_drop+0x190/0x3a0 [ 42.443457] RSP [ 42.447233] ---[ end trace 3ccae07982ce7583 ]--- [ 42.451988] Kernel panic - not syncing: Fatal exception [ 42.457950] Dumping ftrace buffer: [ 42.461457] (ftrace buffer empty) [ 42.465137] Kernel Offset: disabled [ 42.468730] Rebooting in 86400 seconds..