[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [ 29.335886] random: sshd: uninitialized urandom read (32 bytes read) [ 29.537306] audit: type=1400 audit(1536490062.342:6): avc: denied { map } for pid=5468 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 29.589090] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 30.229141] random: sshd: uninitialized urandom read (32 bytes read) [ 33.281104] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.17' (ECDSA) to the list of known hosts. [ 38.921848] random: sshd: uninitialized urandom read (32 bytes read) [ 39.060237] audit: type=1400 audit(1536490071.862:7): avc: denied { map } for pid=5483 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/09/09 10:47:52 parsed 1 programs [ 39.562547] audit: type=1400 audit(1536490072.362:8): avc: denied { map } for pid=5483 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=14713 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 39.990603] random: cc1: uninitialized urandom read (8 bytes read) 2018/09/09 10:47:53 executed programs: 0 [ 41.102439] audit: type=1400 audit(1536490073.902:9): avc: denied { map } for pid=5483 comm="syz-execprog" path="/root/syzkaller-shm347262177" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 41.139542] IPVS: ftp: loaded support on port[0] = 21 [ 41.396113] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.402689] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.410507] device bridge_slave_0 entered promiscuous mode [ 41.428907] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.435468] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.442648] device bridge_slave_1 entered promiscuous mode [ 41.460213] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 41.478703] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 41.529069] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.550106] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.635294] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 41.642602] team0: Port device team_slave_0 added [ 41.660614] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 41.667845] team0: Port device team_slave_1 added [ 41.685753] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.706560] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 41.725669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.745542] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 41.896010] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.902486] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.909402] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.915788] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.434911] 8021q: adding VLAN 0 to HW filter on device bond0 [ 42.486200] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 42.537017] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 42.543146] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 42.551828] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 42.596071] 8021q: adding VLAN 0 to HW filter on device team0 [ 42.893625] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html for details. [ 42.921561] kasan: CONFIG_KASAN_INLINE enabled [ 42.926398] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.933763] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 42.939991] CPU: 0 PID: 5754 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #8 [ 42.947074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.956442] RIP: 0010:kvm_pv_send_ipi+0x364/0xdd0 [ 42.961268] Code: 45 84 ed 0f 84 da 07 00 00 e8 38 d3 65 00 48 8d 4b 14 48 b8 00 00 00 00 00 fc ff df 48 89 ca 48 89 8d 70 fe ff ff 48 c1 ea 03 <0f> b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 f5 [ 42.980160] RSP: 0018:ffff8801bffbf028 EFLAGS: 00010203 [ 42.985638] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000014 [ 42.992901] RDX: 0000000000000002 RSI: ffffffff8118fc08 RDI: 0000000000000005 [ 43.000233] RBP: ffff8801bffbf1c8 R08: ffff8801be5c4280 R09: 1ffffffff12b43cd [ 43.007495] R10: ffffed003b5c4732 R11: ffff8801dae23993 R12: ffff8801bffbf1a0 [ 43.014749] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801bffbf120 [ 43.022002] FS: 0000000000f6f940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 43.030224] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.036088] CR2: 0000000000000000 CR3: 00000001c0df3000 CR4: 00000000001426f0 [ 43.043448] Call Trace: [ 43.046030] ? __lock_is_held+0xb5/0x140 [ 43.050074] ? graph_lock+0x170/0x170 [ 43.053866] ? kvm_apic_set_irq+0x170/0x170 [ 43.058173] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 43.063692] ? check_preemption_disabled+0x48/0x200 [ 43.068707] ? check_preemption_disabled+0x48/0x200 [ 43.073711] ? __lock_is_held+0xb5/0x140 [ 43.077834] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 43.083368] ? vmx_read_guest_seg_ar+0x221/0x270 [ 43.088113] kvm_emulate_hypercall+0xa1a/0xf20 [ 43.092682] ? kvm_gen_update_masterclock+0x350/0x350 [ 43.097923] ? graph_lock+0x170/0x170 [ 43.101762] ? vmx_vcpu_run+0x135b/0x2700 [ 43.105902] ? vmx_vcpu_run+0x134f/0x2700 [ 43.110034] ? vmx_vcpu_run+0x135b/0x2700 [ 43.114173] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 43.119701] ? check_preemption_disabled+0x48/0x200 [ 43.124708] ? check_preemption_disabled+0x48/0x200 [ 43.129715] ? __lock_is_held+0xb5/0x140 [ 43.133771] handle_vmcall+0x15/0x20 [ 43.137470] ? handle_io+0x100/0x100 [ 43.141174] vmx_handle_exit+0x2f7/0x17e0 [ 43.145404] ? lock_acquire+0x1ed/0x520 [ 43.149365] ? vcpu_enter_guest+0x12f2/0x62e0 [ 43.153840] ? vcpu_enter_guest+0x1271/0x62e0 [ 43.158320] ? handle_vmfunc+0x9d0/0x9d0 [ 43.162364] ? trace_hardirqs_on+0xbd/0x310 [ 43.166669] ? kvm_arch_vcpu_ioctl_run+0x375/0x16e0 [ 43.171666] ? check_preemption_disabled+0x48/0x200 [ 43.176675] ? check_preemption_disabled+0x48/0x200 [ 43.181690] vcpu_enter_guest+0x14a9/0x62e0 [ 43.186003] ? emulator_read_emulated+0x50/0x50 [ 43.190658] ? vmx_vcpu_load+0xb06/0x1030 [ 43.194791] ? vmx_write_tsc_offset+0x680/0x680 [ 43.199448] ? graph_lock+0x170/0x170 [ 43.203252] ? kvm_vcpu_ioctl+0x28c/0x1150 [ 43.207479] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 43.212999] ? check_preemption_disabled+0x48/0x200 [ 43.217995] ? check_preemption_disabled+0x48/0x200 [ 43.222998] ? __lock_is_held+0xb5/0x140 [ 43.227058] ? kvm_check_async_pf_completion+0x3ae/0x5c0 [ 43.232494] ? kvm_clear_async_pf_completion_queue+0x770/0x770 [ 43.238457] ? kvm_arch_dev_ioctl+0x630/0x630 [ 43.242946] ? preempt_notifier_dec+0x20/0x20 [ 43.247435] kvm_arch_vcpu_ioctl_run+0x375/0x16e0 [ 43.252375] ? kvm_arch_vcpu_ioctl_run+0x375/0x16e0 [ 43.257383] kvm_vcpu_ioctl+0x72b/0x1150 [ 43.261433] ? kvm_vcpu_block+0x1030/0x1030 [ 43.265741] ? __call_rcu.constprop.69+0x429/0xbc0 [ 43.270652] ? lockdep_hardirqs_on+0x421/0x5c0 [ 43.275220] ? exit_robust_list+0x280/0x280 [ 43.279525] ? debug_object_deactivate+0x450/0x450 [ 43.284438] ? call_rcu+0x12/0x20 [ 43.287875] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 43.293313] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 43.298833] ? check_preemption_disabled+0x48/0x200 [ 43.303840] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 43.309371] ? check_preemption_disabled+0x48/0x200 [ 43.314374] ? rcu_is_watching+0x30/0x30 [ 43.318598] ? graph_lock+0x170/0x170 [ 43.322409] ? rcu_pm_notify+0xc0/0xc0 [ 43.326287] ? blkcg_maybe_throttle_current+0xa38/0x1080 [ 43.331728] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 43.337259] ? blkcg_print_stat+0x13e0/0x13e0 [ 43.341744] ? task_work_run+0x1af/0x2a0 [ 43.345790] ? _raw_spin_unlock_irq+0x27/0x80 [ 43.350274] ? _raw_spin_unlock_irq+0x27/0x80 [ 43.354775] ? kvm_vcpu_block+0x1030/0x1030 [ 43.359091] do_vfs_ioctl+0x1de/0x1720 [ 43.362967] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 43.368160] ? ioctl_preallocate+0x300/0x300 [ 43.372558] ? selinux_file_mprotect+0x620/0x620 [ 43.377298] ? trace_hardirqs_off+0xb8/0x310 [ 43.381695] ? __x64_sys_futex+0x47f/0x6a0 [ 43.386027] ? do_syscall_64+0x9a/0x820 [ 43.389994] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 43.395514] ? security_file_ioctl+0x94/0xc0 [ 43.399909] ksys_ioctl+0xa9/0xd0 [ 43.403357] __x64_sys_ioctl+0x73/0xb0 [ 43.407237] do_syscall_64+0x1b9/0x820 [ 43.411116] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 43.416473] ? syscall_return_slowpath+0x5e0/0x5e0 [ 43.421500] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.426329] ? trace_hardirqs_on_caller+0x310/0x310 [ 43.431327] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 43.436326] ? prepare_exit_to_usermode+0x291/0x3b0 [ 43.441431] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.446267] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.451440] RIP: 0033:0x457099 [ 43.454648] Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 43.473532] RSP: 002b:00007ffcaf984488 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.481226] RAX: ffffffffffffffda RBX: 0000000000f6f914 RCX: 0000000000457099 [ 43.488478] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 43.495738] RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 [ 43.502991] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 43.510242] R13: 00000000004cf730 R14: 00000000004c59b9 R15: 0000000000000000 [ 43.517498] Modules linked in: [ 43.520690] Dumping ftrace buffer: [ 43.524213] (ftrace buffer empty) [ 43.530793] ---[ end trace 34c2dc7f63b18509 ]--- [ 43.536395] RIP: 0010:kvm_pv_send_ipi+0x364/0xdd0 [ 43.541244] Code: 45 84 ed 0f 84 da 07 00 00 e8 38 d3 65 00 48 8d 4b 14 48 b8 00 00 00 00 00 fc ff df 48 89 ca 48 89 8d 70 fe ff ff 48 c1 ea 03 <0f> b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 f5 [ 43.560190] RSP: 0018:ffff8801bffbf028 EFLAGS: 00010203 [ 43.565624] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000014 [ 43.572887] RDX: 0000000000000002 RSI: ffffffff8118fc08 RDI: 0000000000000005 [ 43.580179] RBP: ffff8801bffbf1c8 R08: ffff8801be5c4280 R09: 1ffffffff12b43cd [ 43.587486] R10: ffffed003b5c4732 R11: ffff8801dae23993 R12: ffff8801bffbf1a0 [ 43.594745] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801bffbf120 [ 43.602041] FS: 0000000000f6f940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 43.610373] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.617137] CR2: 0000000000000000 CR3: 00000001c0df3000 CR4: 00000000001426f0 [ 43.624417] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.631715] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.639011] Kernel panic - not syncing: Fatal exception [ 43.644732] Dumping ftrace buffer: [ 43.648266] (ftrace buffer empty) [ 43.652519] Kernel Offset: disabled [ 43.656139] Rebooting in 86400 seconds..