[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 21.519493] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 25.400253] random: sshd: uninitialized urandom read (32 bytes read) [ 25.881407] random: sshd: uninitialized urandom read (32 bytes read) [ 26.738215] random: sshd: uninitialized urandom read (32 bytes read) [ 38.044362] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.51' (ECDSA) to the list of known hosts. [ 43.561538] random: sshd: uninitialized urandom read (32 bytes read) [ 43.654573] IPVS: ftp: loaded support on port[0] = 21 [ 43.778008] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.784497] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.791712] device bridge_slave_0 entered promiscuous mode [ 43.807604] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.814006] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.821449] device bridge_slave_1 entered promiscuous mode [ 43.837178] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 43.852948] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 43.896727] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 43.916384] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 43.980701] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 43.989765] team0: Port device team_slave_0 added [ 44.004150] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.011456] team0: Port device team_slave_1 added [ 44.026296] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.045894] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.063755] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.081925] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 44.200404] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.206880] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.213764] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.220154] bridge0: port 1(bridge_slave_0) entered forwarding state RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument [ 44.640359] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 44.646478] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.689400] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 44.733519] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.741549] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 44.778893] 8021q: adding VLAN 0 to HW filter on device team0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 101.850624] random: crng init done executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 119.267507] WARNING: CPU: 0 PID: 10384 at net/core/stream.c:206 sk_stream_kill_queues+0x3e7/0x540 [ 119.276673] Kernel panic - not syncing: panic_on_warn set ... [ 119.276673] [ 119.284023] CPU: 0 PID: 10384 Comm: syz-executor833 Not tainted 4.17.0+ #101 [ 119.291190] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.300534] Call Trace: [ 119.303136] dump_stack+0x1b9/0x294 [ 119.306763] ? dump_stack_print_info.cold.2+0x52/0x52 [ 119.312680] ? sk_stream_kill_queues+0x350/0x540 [ 119.317428] panic+0x22f/0x4de [ 119.320611] ? add_taint.cold.5+0x16/0x16 [ 119.324750] ? __warn.cold.8+0x148/0x1b3 [ 119.328792] ? __warn.cold.8+0x117/0x1b3 [ 119.333204] ? sk_stream_kill_queues+0x3e7/0x540 [ 119.337947] __warn.cold.8+0x163/0x1b3 [ 119.341822] ? sk_stream_kill_queues+0x3e7/0x540 [ 119.346597] report_bug+0x252/0x2d0 [ 119.350210] do_error_trap+0x1fc/0x4d0 [ 119.354087] ? math_error+0x3f0/0x3f0 [ 119.357877] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 119.362886] ? percpu_counter_add_batch+0xf2/0x150 [ 119.367805] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 119.372629] do_invalid_op+0x1b/0x20 [ 119.376326] invalid_op+0x14/0x20 [ 119.379762] RIP: 0010:sk_stream_kill_queues+0x3e7/0x540 [ 119.385097] Code: 48 c1 ea 03 0f b6 04 02 84 c0 74 04 3c 03 7e 41 44 8b a3 f0 01 00 00 e9 5f ff ff ff e8 22 98 91 fb 0f 0b eb 96 e8 19 98 91 fb <0f> 0b eb a1 e8 10 98 91 fb 0f 0b e9 9f fe ff ff 4c 89 ef e8 e1 c1 [ 119.404265] RSP: 0018:ffff8801d1e4ee50 EFLAGS: 00010293 [ 119.409613] RAX: ffff8801d6b20700 RBX: 0000000000000000 RCX: ffffffff85e8f637 [ 119.416862] RDX: 0000000000000000 RSI: ffffffff85e8f697 RDI: 0000000000000005 [ 119.424133] RBP: ffff8801d1e4ee90 R08: ffff8801d6b20700 R09: ffffed003b5c46d6 [ 119.431396] R10: ffffed003b5c46d6 R11: ffff8801dae236b3 R12: 0000000000000813 [ 119.438650] R13: ffff8801a9c08df0 R14: ffffffff8b4b0240 R15: 0000000000000007 [ 119.445933] ? sk_stream_kill_queues+0x387/0x540 [ 119.450679] ? sk_stream_kill_queues+0x3e7/0x540 [ 119.455416] ? inet6_destroy_sock+0x15e/0x1a0 [ 119.459907] inet_csk_destroy_sock+0x1a7/0x440 [ 119.464474] tcp_close+0xb70/0x12b0 [ 119.468099] ? release_sock+0x1e2/0x2b0 [ 119.472058] ? tcp_check_oom+0x520/0x520 [ 119.476117] ? tls_sk_proto_close+0x6fa/0xad0 [ 119.480606] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 119.485639] ? trace_hardirqs_on+0xd/0x10 [ 119.489772] tls_sk_proto_close+0x6e4/0xad0 [ 119.494077] ? tcp_check_oom+0x520/0x520 [ 119.499023] ? tls_write_space+0x340/0x340 [ 119.503262] ? rcu_note_context_switch+0x710/0x710 [ 119.508172] ? rcu_is_watching+0x85/0x140 [ 119.512324] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 119.517857] ? ipv6_sock_ac_close+0x34e/0x480 [ 119.522335] ? ipv6_sock_mc_close+0x161/0x1c0 [ 119.526810] ? ip_mc_drop_socket+0x20f/0x270 [ 119.531196] ? down_write+0x87/0x120 [ 119.534891] inet_release+0x104/0x1f0 [ 119.538676] inet6_release+0x50/0x70 [ 119.542372] __sock_release+0xd7/0x260 [ 119.546241] ? __sock_release+0x260/0x260 [ 119.550370] sock_close+0x19/0x20 [ 119.553804] __fput+0x353/0x890 [ 119.557066] ? fput+0x1a0/0x1a0 [ 119.560328] ? check_same_owner+0x320/0x320 [ 119.564631] ? _raw_spin_unlock_irq+0x27/0x70 [ 119.569108] ____fput+0x15/0x20 [ 119.572370] task_work_run+0x1e4/0x290 [ 119.576255] ? task_work_cancel+0x240/0x240 [ 119.580568] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 119.586096] ? switch_task_namespaces+0xa2/0xd0 [ 119.590750] do_exit+0x1aee/0x2730 [ 119.594276] ? plist_add+0x770/0x770 [ 119.597994] ? mm_update_next_owner+0x980/0x980 [ 119.602666] ? print_usage_bug+0xc0/0xc0 [ 119.606735] ? graph_lock+0x170/0x170 [ 119.610522] ? do_raw_spin_unlock+0x9e/0x2e0 [ 119.614911] ? rcu_note_context_switch+0x710/0x710 [ 119.619822] ? lock_acquire+0x1dc/0x520 [ 119.623776] ? __might_sleep+0x95/0x190 [ 119.627737] ? __lock_acquire+0x7f5/0x5140 [ 119.631954] ? kasan_check_write+0x14/0x20 [ 119.636167] ? native_queued_spin_lock_slowpath+0x1d7/0x11e0 [ 119.641945] ? __pv_queued_spin_lock_slowpath+0x1580/0x1580 [ 119.647637] ? kasan_check_read+0x11/0x20 [ 119.651767] ? do_raw_spin_unlock+0x9e/0x2e0 [ 119.656156] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 119.660718] ? kasan_check_write+0x14/0x20 [ 119.664947] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 119.670120] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 119.675638] ? drop_futex_key_refs.isra.14+0x6d/0xe0 [ 119.680722] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 119.686244] ? futex_wait+0x5c1/0x9f0 [ 119.690042] ? futex_wait_setup+0x400/0x400 [ 119.694344] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 119.699516] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 119.705124] ? drop_futex_key_refs.isra.14+0x6d/0xe0 [ 119.710206] ? graph_lock+0x170/0x170 [ 119.713992] ? memset+0x31/0x40 [ 119.717256] ? find_held_lock+0x36/0x1c0 [ 119.721303] ? lock_downgrade+0x8e0/0x8e0 [ 119.725455] do_group_exit+0x16f/0x430 [ 119.729421] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 119.733999] ? __ia32_sys_exit+0x50/0x50 [ 119.738044] ? _raw_spin_unlock_irq+0x27/0x70 [ 119.742521] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 119.747531] get_signal+0x886/0x1960 [ 119.751233] ? ptrace_notify+0x130/0x130 [ 119.755453] ? kasan_check_read+0x11/0x20 [ 119.759588] ? do_raw_spin_unlock+0x9e/0x2e0 [ 119.764259] ? __local_bh_enable_ip+0x161/0x230 [ 119.768925] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 119.773928] ? release_sock+0x1e2/0x2b0 [ 119.780079] ? trace_hardirqs_on+0xd/0x10 [ 119.784236] ? _raw_spin_unlock_bh+0x30/0x40 [ 119.788630] do_signal+0x9c/0x21c0 [ 119.792154] ? __local_bh_enable_ip+0x161/0x230 [ 119.796809] ? setup_sigcontext+0x7d0/0x7d0 [ 119.801121] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 119.806649] ? fput+0x130/0x1a0 [ 119.809909] ? __sys_bind+0x1d1/0x440 [ 119.813688] ? __ia32_sys_socketpair+0xf0/0xf0 [ 119.818271] ? exit_to_usermode_loop+0x87/0x360 [ 119.822921] exit_to_usermode_loop+0x2cf/0x360 [ 119.827486] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 119.832312] ? _raw_spin_unlock_irq+0x27/0x70 [ 119.836788] ? do_syscall_64+0x92/0x800 [ 119.840746] do_syscall_64+0x6ac/0x800 [ 119.844617] ? syscall_return_slowpath+0x5c0/0x5c0 [ 119.849531] ? syscall_return_slowpath+0x30f/0x5c0 [ 119.854445] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 119.859966] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 119.864795] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 119.869977] RIP: 0033:0x447a59 [ 119.873150] Code: Bad RIP value. [ 119.876512] RSP: 002b:00007fcfd3904cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 119.884213] RAX: fffffffffffffe00 RBX: 00000000006ddc8c RCX: 0000000000447a59 [ 119.891463] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006ddc8c [ 119.898715] RBP: 00000000006ddc88 R08: 0000000000000000 R09: 0000000000000000 [ 119.905983] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 119.913230] R13: 00007ffe68c29eff R14: 00007fcfd39059c0 R15: 000000000000000c [ 119.921261] Dumping ftrace buffer: [ 119.924897] (ftrace buffer empty) [ 119.928591] Kernel Offset: disabled [ 119.932203] Rebooting in 86400 seconds..