[....] Starting OpenBSD Secure Shell server: sshd[ 27.505246] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 31.213263] random: sshd: uninitialized urandom read (32 bytes read) [ 31.626262] audit: type=1400 audit(1536195467.874:6): avc: denied { map } for pid=4765 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 [ 31.677675] random: sshd: uninitialized urandom read (32 bytes read) [ 32.295266] random: sshd: uninitialized urandom read (32 bytes read) [ 100.720948] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.15.221' (ECDSA) to the list of known hosts. [ 106.250119] random: sshd: uninitialized urandom read (32 bytes read) [ 106.355787] audit: type=1400 audit(1536195542.604:7): avc: denied { map } for pid=4780 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 2018/09/06 00:59:03 parsed 1 programs [ 106.843565] audit: type=1400 audit(1536195543.091:8): avc: denied { map } for pid=4780 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=1097 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 107.380830] random: cc1: uninitialized urandom read (8 bytes read) 2018/09/06 00:59:04 executed programs: 0 [ 108.644814] audit: type=1400 audit(1536195544.893:9): avc: denied { map } for pid=4780 comm="syz-execprog" path="/root/syzkaller-shm003193105" 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 [ 108.691386] IPVS: ftp: loaded support on port[0] = 21 [ 108.917241] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.923848] bridge0: port 1(bridge_slave_0) entered disabled state [ 108.931115] device bridge_slave_0 entered promiscuous mode [ 108.948514] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.954884] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.961864] device bridge_slave_1 entered promiscuous mode [ 108.978151] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 108.995298] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 109.041138] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 109.060222] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 109.129211] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 109.136904] team0: Port device team_slave_0 added [ 109.152989] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 109.160236] team0: Port device team_slave_1 added [ 109.176622] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 109.194977] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 109.213844] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 109.232003] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 109.364274] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.370900] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.377791] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.384173] bridge0: port 1(bridge_slave_0) entered forwarding state [ 109.866907] 8021q: adding VLAN 0 to HW filter on device bond0 [ 109.914308] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 109.963038] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 109.969260] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 109.976797] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 110.018222] 8021q: adding VLAN 0 to HW filter on device team0 [ 110.302537] 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. [ 110.337767] kasan: CONFIG_KASAN_INLINE enabled [ 110.342770] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 110.350306] general protection fault: 0000 [#1] SMP KASAN [ 110.355943] CPU: 1 PID: 5053 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #2 [ 110.363024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.372447] RIP: 0010:kvm_pv_send_ipi+0x582/0xaf0 [ 110.377281] Code: e0 07 83 c0 01 88 85 97 fe ff ff e8 c8 1d 64 00 8b 85 b0 fe ff ff 44 01 e0 48 98 49 8d bc c7 18 02 00 00 48 89 fa 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ed 03 00 00 49 8b 84 c7 18 02 00 00 48 8d b8 [ 110.396634] RSP: 0018:ffff8801c83d7028 EFLAGS: 00010206 [ 110.401979] RAX: 0000000000000620 RBX: ffff8801c83d7190 RCX: ffffffff8118b134 [ 110.409228] RDX: 0000000000000663 RSI: ffffffff8118b178 RDI: 0000000000003318 [ 110.416491] RBP: ffff8801c83d71b8 R08: ffff8801adace780 R09: ffffed003b6246de [ 110.423755] R10: ffffed003b6246de R11: ffff8801db1236f3 R12: 0000000000000000 [ 110.431006] R13: ffff8801c83d7110 R14: dffffc0000000000 R15: 0000000000000000 [ 110.438257] FS: 00007fb6e6b70700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 [ 110.446478] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.452339] CR2: 0000000000000000 CR3: 00000001b2e81000 CR4: 00000000001426e0 [ 110.459688] Call Trace: [ 110.462261] ? __lock_acquire+0x7fc/0x5020 [ 110.466482] ? kvm_apic_set_irq+0x170/0x170 [ 110.470794] ? __lock_is_held+0xb5/0x140 [ 110.474950] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.480480] ? vmx_read_guest_seg_ar+0x221/0x270 [ 110.485219] kvm_emulate_hypercall+0x9d7/0xea0 [ 110.489792] ? kvm_fast_pio+0x4f0/0x4f0 [ 110.493900] ? graph_lock+0x170/0x170 [ 110.497684] ? vmx_vcpu_run+0x13f9/0x277b [ 110.501815] ? vmx_vcpu_run+0x13ed/0x277b [ 110.505943] ? vmx_vcpu_run+0x13f9/0x277b [ 110.510071] ? vmx_vcpu_run+0x13ed/0x277b [ 110.514199] ? vmx_vcpu_run+0x13f9/0x277b [ 110.518323] ? vmx_vcpu_run+0x13ed/0x277b [ 110.522521] ? vmx_vcpu_run+0x13f9/0x277b [ 110.526660] ? vmx_vcpu_run+0x13ed/0x277b [ 110.530857] ? print_usage_bug+0xc0/0xc0 [ 110.534903] ? vmx_vcpu_run+0x13ed/0x277b [ 110.539037] ? __lock_is_held+0xb5/0x140 [ 110.543080] ? __vmx_complete_interrupts+0x103/0x3e0 [ 110.548172] handle_vmcall+0x15/0x20 [ 110.551870] ? handle_io+0x100/0x100 [ 110.555568] vmx_handle_exit+0x2dd/0x1760 [ 110.559815] ? lock_acquire+0x1e4/0x4f0 [ 110.563779] ? vcpu_enter_guest+0x1285/0x61a0 [ 110.568321] ? vcpu_enter_guest+0x1227/0x61a0 [ 110.572881] ? handle_vmfunc+0x9d0/0x9d0 [ 110.576936] ? trace_hardirqs_on+0xbd/0x2c0 [ 110.581518] ? kvm_arch_vcpu_ioctl_run+0x373/0x16d0 [ 110.586526] vcpu_enter_guest+0x143c/0x61a0 [ 110.590928] ? kvm_set_msr_common+0x2680/0x2680 [ 110.595666] ? vmx_vcpu_load+0xad2/0xfe0 [ 110.599712] ? handle_dr+0x8c0/0x8c0 [ 110.603412] ? graph_lock+0x170/0x170 [ 110.607213] ? __init_waitqueue_head+0x9e/0x150 [ 110.611867] ? __lock_is_held+0xb5/0x140 [ 110.615931] ? kvm_check_async_pf_completion+0x3a7/0x5c0 [ 110.621376] ? kvm_clear_async_pf_completion_queue+0x790/0x790 [ 110.627372] ? kvm_arch_dev_ioctl+0x610/0x610 [ 110.631857] ? preempt_notifier_dec+0x20/0x20 [ 110.636335] kvm_arch_vcpu_ioctl_run+0x373/0x16d0 [ 110.641163] ? kvm_arch_vcpu_ioctl_run+0x373/0x16d0 [ 110.646168] kvm_vcpu_ioctl+0x7b8/0x1280 [ 110.650216] ? kvm_uevent_notify_change.part.32+0x440/0x440 [ 110.655912] ? find_held_lock+0x36/0x1c0 [ 110.659960] ? lock_downgrade+0x8f0/0x8f0 [ 110.664106] ? kasan_check_read+0x11/0x20 [ 110.668237] ? rcu_is_watching+0x8c/0x150 [ 110.672369] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 110.677023] ? __fget+0x4d5/0x740 [ 110.680522] ? ksys_dup3+0x690/0x690 [ 110.684229] ? kvm_uevent_notify_change.part.32+0x440/0x440 [ 110.689928] do_vfs_ioctl+0x1de/0x1720 [ 110.693803] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 110.699209] ? ioctl_preallocate+0x300/0x300 [ 110.703607] ? selinux_capable+0x40/0x40 [ 110.707656] ? trace_hardirqs_off+0xb8/0x2b0 [ 110.712047] ? trace_hardirqs_on+0x2c0/0x2c0 [ 110.716438] ? __x64_sys_futex+0x47f/0x6a0 [ 110.720721] ? do_syscall_64+0x9a/0x820 [ 110.724747] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.730274] ? security_file_ioctl+0x94/0xc0 [ 110.734678] ksys_ioctl+0xa9/0xd0 [ 110.738206] __x64_sys_ioctl+0x73/0xb0 [ 110.742081] do_syscall_64+0x1b9/0x820 [ 110.745951] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 110.751295] ? syscall_return_slowpath+0x5e0/0x5e0 [ 110.756211] ? trace_hardirqs_on_caller+0x2b0/0x2b0 [ 110.761228] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 110.766339] ? recalc_sigpending_tsk+0x180/0x180 [ 110.771078] ? kasan_check_write+0x14/0x20 [ 110.775315] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 110.780147] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 110.785315] RIP: 0033:0x457099 [ 110.788582] 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 [ 110.807488] RSP: 002b:00007fb6e6b6fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 110.815253] RAX: ffffffffffffffda RBX: 00007fb6e6b706d4 RCX: 0000000000457099 [ 110.822618] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 110.829869] RBP: 00000000009301e0 R08: 0000000000000000 R09: 0000000000000000 [ 110.837119] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 110.844372] R13: 00000000004cf730 R14: 00000000004c59b9 R15: 0000000000000002 [ 110.851627] Modules linked in: [ 110.854807] Dumping ftrace buffer: [ 110.858321] (ftrace buffer empty) [ 110.862394] ---[ end trace 8453d1b4a644d1a0 ]--- [ 110.867189] RIP: 0010:kvm_pv_send_ipi+0x582/0xaf0 [ 110.872166] Code: e0 07 83 c0 01 88 85 97 fe ff ff e8 c8 1d 64 00 8b 85 b0 fe ff ff 44 01 e0 48 98 49 8d bc c7 18 02 00 00 48 89 fa 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ed 03 00 00 49 8b 84 c7 18 02 00 00 48 8d b8 [ 110.891082] RSP: 0018:ffff8801c83d7028 EFLAGS: 00010206 [ 110.896474] RAX: 0000000000000620 RBX: ffff8801c83d7190 RCX: ffffffff8118b134 [ 110.903818] RDX: 0000000000000663 RSI: ffffffff8118b178 RDI: 0000000000003318 [ 110.911201] RBP: ffff8801c83d71b8 R08: ffff8801adace780 R09: ffffed003b6246de [ 110.918612] R10: ffffed003b6246de R11: ffff8801db1236f3 R12: 0000000000000000 [ 110.925903] R13: ffff8801c83d7110 R14: dffffc0000000000 R15: 0000000000000000 [ 110.933384] FS: 00007fb6e6b70700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 [ 110.941642] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.947527] CR2: 0000000000000000 CR3: 00000001b2e81000 CR4: 00000000001426e0 [ 110.954809] Kernel panic - not syncing: Fatal exception [ 110.960485] Dumping ftrace buffer: [ 110.964006] (ftrace buffer empty) [ 110.967696] Kernel Offset: disabled [ 110.971477] Rebooting in 86400 seconds..