[ 13.816979] random: sshd: uninitialized urandom read (32 bytes read, 31 bits of entropy available) [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.376161] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available) [ 21.896871] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available) [ 22.687495] random: sshd: uninitialized urandom read (32 bytes read, 104 bits of entropy available) [ 32.003965] random: sshd: uninitialized urandom read (32 bytes read, 113 bits of entropy available) Warning: Permanently added 'ci-android-44-kasan-gce-1,10.128.15.199' (ECDSA) to the list of known hosts. [ 37.402771] random: sshd: uninitialized urandom read (32 bytes read, 119 bits of entropy available) executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 37.508831] IPVS: Creating netns size=2552 id=1 executing program executing program [ 37.538479] IPVS: Creating netns size=2552 id=2 [ 37.558593] IPVS: Creating netns size=2552 id=3 executing program [ 37.578906] IPVS: Creating netns size=2552 id=4 executing program [ 37.599525] IPVS: Creating netns size=2552 id=5 executing program [ 37.629796] IPVS: Creating netns size=2552 id=6 executing program [ 37.651242] IPVS: Creating netns size=2552 id=7 executing program [ 37.682049] IPVS: Creating netns size=2552 id=8 executing program [ 38.676205] IPVS: Creating netns size=2552 id=9 executing program [ 38.708057] IPVS: Creating netns size=2552 id=10 executing program [ 38.731299] IPVS: Creating netns size=2552 id=11 executing program [ 38.764285] IPVS: Creating netns size=2552 id=12 executing program [ 38.788387] IPVS: Creating netns size=2552 id=13 executing program [ 38.811792] IPVS: Creating netns size=2552 id=14 executing program [ 38.845185] IPVS: Creating netns size=2552 id=15 executing program [ 38.869901] IPVS: Creating netns size=2552 id=16 executing program [ 38.894276] IPVS: Creating netns size=2552 id=17 [ 45.500463] pktgen: kernel_thread() failed for cpu 0 [ 45.505620] pktgen: Cannot create thread for cpu 0 (-4) [ 45.510979] pktgen: kernel_thread() failed for cpu 1 [ 45.516051] pktgen: Cannot create thread for cpu 1 (-4) [ 45.521431] pktgen: Initialization failed for all threads [ 45.575156] kasan: CONFIG_KASAN_INLINE enabled [ 45.579567] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 45.592358] Dumping ftrace buffer: [ 45.595858] (ftrace buffer empty) [ 45.599532] Modules linked in: [ 45.602801] CPU: 0 PID: 3368 Comm: syzkaller350304 Not tainted 4.4.104-ged884eb #2 [ 45.610468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.619784] task: ffff8800b5868000 task.stack: ffff8800b5870000 [ 45.625802] RIP: 0010:[] [] nfqnl_nf_hook_drop+0x154/0x310 [ 45.634715] RSP: 0018:ffff8800b5877ba0 EFLAGS: 00010202 [ 45.640124] RAX: 0000000000000007 RBX: 0000000000000003 RCX: 1ffffffff08fc630 [ 45.647355] RDX: 0000000000000000 RSI: ffffffff839fd420 RDI: ffffffff847e3180 [ 45.654586] RBP: ffff8800b5877bd0 R08: 0000000000000001 R09: 0000000000000000 [ 45.661826] R10: 0000000000000000 R11: 1ffff10016b0ef40 R12: dffffc0000000000 [ 45.669067] R13: ffff8801d29b6cf8 R14: 0000000000000038 R15: 00000000000000b8 [ 45.676300] FS: 0000000002020880(0063) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 45.684487] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.690330] CR2: 00007f79af5df000 CR3: 00000000b5f2a000 CR4: 00000000001406f0 [ 45.697562] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.704803] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.712033] Stack: [ 45.714143] ffffffff82f4568d ffffffff83cc3e60 ffff8800b62c5ac0 ffff8801d29b6cf8 [ 45.722094] ffff8800b62c6578 ffffffff843dd188 ffff8800b5877c00 ffffffff82f3da2b [ 45.730035] ffffffff82f3d990 ffff8801d29b6cf8 ffffffff843dd160 ffff8801d29b6cf0 [ 45.737972] Call Trace: [ 45.740522] [] ? nfqnl_nf_hook_drop+0xdd/0x310 [ 45.746724] [] nf_queue_nf_hook_drop+0x9b/0x180 [ 45.753003] [] ? nf_queue_entry_release_refs+0x120/0x120 [ 45.760064] [] nf_unregister_net_hook+0x1f4/0x310 [ 45.766516] [] netfilter_net_exit+0x36/0xa0 [ 45.772448] [] ops_exit_list.isra.4+0x8b/0x120 [ 45.778640] [] setup_net+0x20e/0x3d0 [ 45.783962] [] ? ops_init+0x360/0x360 [ 45.789375] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 45.796174] [] copy_net_ns+0xa6/0x140 [ 45.801583] [] create_new_namespaces+0x2d3/0x580 [ 45.807948] [] unshare_nsproxy_namespaces+0x8b/0x1a0 [ 45.814663] [] SyS_unshare+0x357/0x6b0 [ 45.820158] [] ? SyS_clone+0x20/0x20 [ 45.825493] [] ? vfs_write+0x33f/0x520 [ 45.830991] [] ? SyS_read+0x1c0/0x1c0 [ 45.836400] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 45.842856] [] entry_SYSCALL_64_fastpath+0x16/0x76 [ 45.849394] 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 [ 45.875644] RIP [] nfqnl_nf_hook_drop+0x154/0x310 [ 45.882211] RSP [ 45.886019] ---[ end trace da1d40525da046c2 ]--- [ 45.890777] Kernel panic - not syncing: Fatal exception [ 45.896446] Dumping ftrace buffer: [ 45.899946] (ftrace buffer empty) [ 45.903617] Kernel Offset: disabled [ 45.907206] Rebooting in 86400 seconds..