[ 13.656504] 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: [ 22.270546] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 22.707356] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 23.413622] random: sshd: uninitialized urandom read (32 bytes read, 97 bits of entropy available) [ 33.807926] random: sshd: uninitialized urandom read (32 bytes read, 105 bits of entropy available) Warning: Permanently added 'ci-android-44-kasan-gce-2,10.128.0.15' (ECDSA) to the list of known hosts. [ 39.245631] random: sshd: uninitialized urandom read (32 bytes read, 111 bits of entropy available) executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 39.355989] IPVS: Creating netns size=2552 id=1 [ 39.375205] IPVS: Creating netns size=2552 id=2 [ 39.395152] IPVS: Creating netns size=2552 id=3 executing program executing program [ 39.425967] IPVS: Creating netns size=2552 id=4 executing program [ 39.456154] IPVS: Creating netns size=2552 id=5 executing program [ 39.486929] IPVS: Creating netns size=2552 id=6 executing program [ 39.517463] IPVS: Creating netns size=2552 id=7 executing program [ 39.538169] IPVS: Creating netns size=2552 id=8 executing program [ 40.647810] IPVS: Creating netns size=2552 id=9 [ 40.668882] IPVS: Creating netns size=2552 id=10 executing program [ 40.690950] IPVS: Creating netns size=2552 id=11 executing program [ 40.713283] IPVS: Creating netns size=2552 id=12 executing program executing program [ 40.736516] IPVS: Creating netns size=2552 id=13 [ 40.758986] IPVS: Creating netns size=2552 id=14 executing program [ 40.782218] IPVS: Creating netns size=2552 id=15 executing program executing program [ 40.805372] IPVS: Creating netns size=2552 id=16 executing program [ 46.854699] pktgen: kernel_thread() failed for cpu 0 [ 46.859820] pktgen: Cannot create thread for cpu 0 (-4) [ 46.865245] pktgen: kernel_thread() failed for cpu 1 [ 46.870322] pktgen: Cannot create thread for cpu 1 (-4) [ 46.875687] pktgen: Initialization failed for all threads [ 46.927308] kasan: CONFIG_KASAN_INLINE enabled [ 46.931731] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 46.944555] Dumping ftrace buffer: [ 46.948057] (ftrace buffer empty) [ 46.951727] Modules linked in: [ 46.954995] CPU: 0 PID: 3366 Comm: syzkaller765469 Not tainted 4.4.104-ged884eb #2 [ 46.962661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.971978] task: ffff8800b5278000 task.stack: ffff8800b5300000 [ 46.977996] RIP: 0010:[] [] nfqnl_nf_hook_drop+0x154/0x310 [ 46.986923] RSP: 0018:ffff8800b5307ba0 EFLAGS: 00010202 [ 46.992338] RAX: 0000000000000007 RBX: 0000000000000003 RCX: 1ffffffff08fc630 [ 46.999571] RDX: 0000000000000000 RSI: ffffffff839fd420 RDI: ffffffff847e3180 [ 47.006803] RBP: ffff8800b5307bd0 R08: 0000000000000001 R09: 0000000000000000 [ 47.014035] R10: 0000000000000000 R11: 1ffff10016a60f40 R12: dffffc0000000000 [ 47.021266] R13: ffff8801d1ec4458 R14: 0000000000000038 R15: 00000000000000b8 [ 47.028500] FS: 0000000001d67880(0063) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 47.036686] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.042530] CR2: 00007ff293a62000 CR3: 00000000b89fe000 CR4: 00000000001406f0 [ 47.049764] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.056998] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.064229] Stack: [ 47.066337] ffffffff82f4568d ffffffff83cc3e60 ffff8801d7188000 ffff8801d1ec4458 [ 47.074269] ffff8801d7188ab8 ffffffff843dd188 ffff8800b5307c00 ffffffff82f3da2b [ 47.082200] ffffffff82f3d990 ffff8801d1ec4458 ffffffff843dd160 ffff8801d1ec4450 [ 47.090137] Call Trace: [ 47.092688] [] ? nfqnl_nf_hook_drop+0xdd/0x310 [ 47.098881] [] nf_queue_nf_hook_drop+0x9b/0x180 [ 47.105160] [] ? nf_queue_entry_release_refs+0x120/0x120 [ 47.112219] [] nf_unregister_net_hook+0x1f4/0x310 [ 47.118669] [] netfilter_net_exit+0x36/0xa0 [ 47.124599] [] ops_exit_list.isra.4+0x8b/0x120 [ 47.130791] [] setup_net+0x20e/0x3d0 [ 47.136118] [] ? ops_init+0x360/0x360 [ 47.141529] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 47.148328] [] copy_net_ns+0xa6/0x140 [ 47.153737] [] create_new_namespaces+0x2d3/0x580 [ 47.160102] [] unshare_nsproxy_namespaces+0x8b/0x1a0 [ 47.166817] [] SyS_unshare+0x357/0x6b0 [ 47.172313] [] ? SyS_clone+0x20/0x20 [ 47.177638] [] ? vfs_write+0x33f/0x520 [ 47.183135] [] ? SyS_read+0x1c0/0x1c0 [ 47.188544] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 47.194998] [] entry_SYSCALL_64_fastpath+0x16/0x76 [ 47.201540] 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 [ 47.227749] RIP [] nfqnl_nf_hook_drop+0x154/0x310 [ 47.234310] RSP [ 47.238203] ---[ end trace 95838b88845d6dff ]--- [ 47.242933] Kernel panic - not syncing: Fatal exception [ 47.248290] Dumping ftrace buffer: [ 47.251792] (ftrace buffer empty) [ 47.255464] Kernel Offset: disabled [ 47.259052] Rebooting in 86400 seconds..