[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 20.576170] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 26.328447] random: sshd: uninitialized urandom read (32 bytes read) [ 26.601443] random: sshd: uninitialized urandom read (32 bytes read) [ 27.129078] random: sshd: uninitialized urandom read (32 bytes read) [ 73.434250] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.24' (ECDSA) to the list of known hosts. [ 78.861644] random: sshd: uninitialized urandom read (32 bytes read) 2018/08/10 06:55:03 parsed 1 programs [ 80.303545] random: cc1: uninitialized urandom read (8 bytes read) 2018/08/10 06:55:05 executed programs: 0 [ 81.696289] IPVS: ftp: loaded support on port[0] = 21 [ 81.792994] ip (4435) used greatest stack depth: 16456 bytes left [ 81.898531] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.905149] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.912460] device bridge_slave_0 entered promiscuous mode [ 81.928499] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.934951] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.941886] device bridge_slave_1 entered promiscuous mode [ 81.957725] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 81.973484] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 82.015440] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 82.032733] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 82.098993] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 82.106456] team0: Port device team_slave_0 added [ 82.121244] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 82.128544] team0: Port device team_slave_1 added [ 82.143971] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 82.160166] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 82.176227] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 82.192327] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 82.312222] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.318756] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.325664] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.332143] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.760596] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 82.766713] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.812509] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 82.848800] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 82.858740] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 82.864893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.872478] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.914930] 8021q: adding VLAN 0 to HW filter on device team0 2018/08/10 06:55:10 executed programs: 172 2018/08/10 06:55:15 executed programs: 414 2018/08/10 06:55:20 executed programs: 657 [ 98.175266] kasan: CONFIG_KASAN_INLINE enabled [ 98.180100] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 98.187560] general protection fault: 0000 [#1] SMP KASAN [ 98.193109] CPU: 0 PID: 6521 Comm: kworker/0:8 Not tainted 4.18.0-rc8+ #85 [ 98.200126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.209479] Workqueue: events smc_tcp_listen_work [ 98.214315] RIP: 0010:inet_accept+0xf2/0x9f0 [ 98.218702] Code: 84 d2 74 09 80 fa 03 0f 8e 93 07 00 00 48 8d 78 28 41 c7 46 80 ea ff ff ff 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 94 07 00 00 48 b9 00 00 00 00 00 fc ff df 48 8b [ 98.237829] RSP: 0018:ffff8801bfb174b0 EFLAGS: 00010206 [ 98.243185] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000005 [ 98.250438] RDX: dffffc0000000000 RSI: ffffffff858d8e26 RDI: 0000000000000028 [ 98.257709] RBP: ffff8801bfb17598 R08: ffff8801c82c61c0 R09: ffffed00357bd2df [ 98.264961] R10: ffffed00357bd2df R11: ffff8801abde96fb R12: ffff8801abde9640 [ 98.272221] R13: ffff8801bfb174f0 R14: ffff8801bfb17570 R15: 0000000000000000 [ 98.279507] FS: 0000000000000000(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 [ 98.287716] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.293579] CR2: 00007f6ca0592000 CR3: 00000001c2e47000 CR4: 00000000001406f0 [ 98.300836] Call Trace: [ 98.303413] ? prune_icache_sb+0x1b0/0x1b0 [ 98.307633] ? inet_recvmsg+0x6d0/0x6d0 [ 98.311600] ? trace_hardirqs_on+0xd/0x10 [ 98.315757] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.321283] ? get_next_ino+0x8b/0x110 [ 98.325157] ? security_socket_post_create+0x9f/0xd0 [ 98.330247] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.335788] ? sock_create_lite+0x4d/0x130 [ 98.340011] ? inet_recvmsg+0x6d0/0x6d0 [ 98.343992] kernel_accept+0x136/0x310 [ 98.347873] smc_tcp_listen_work+0x218/0x1150 [ 98.352358] ? smc_link_save_peer_info+0x320/0x320 [ 98.357294] ? __lock_is_held+0xb5/0x140 [ 98.361344] process_one_work+0xc73/0x1ba0 [ 98.365564] ? trace_hardirqs_on+0x10/0x10 [ 98.369816] ? pwq_dec_nr_in_flight+0x4a0/0x4a0 [ 98.374470] ? lock_repin_lock+0x430/0x430 [ 98.378695] ? __sched_text_start+0x8/0x8 [ 98.382838] ? lock_downgrade+0x8f0/0x8f0 [ 98.386973] ? graph_lock+0x170/0x170 [ 98.390762] ? lock_acquire+0x1e4/0x540 [ 98.394723] ? worker_thread+0x3dc/0x13c0 [ 98.398877] ? lock_downgrade+0x8f0/0x8f0 [ 98.403019] ? lock_release+0xa30/0xa30 [ 98.407001] ? kasan_check_read+0x11/0x20 [ 98.411152] ? do_raw_spin_unlock+0xa7/0x2f0 [ 98.415555] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 98.420155] ? kasan_check_write+0x14/0x20 [ 98.424376] ? do_raw_spin_lock+0xc1/0x200 [ 98.428616] worker_thread+0x189/0x13c0 [ 98.432586] ? process_one_work+0x1ba0/0x1ba0 [ 98.437081] ? graph_lock+0x170/0x170 [ 98.440865] ? graph_lock+0x170/0x170 [ 98.444654] ? find_held_lock+0x36/0x1c0 [ 98.448703] ? find_held_lock+0x36/0x1c0 [ 98.452750] ? lock_downgrade+0x8f0/0x8f0 [ 98.456885] ? kasan_check_read+0x11/0x20 [ 98.461024] ? do_raw_spin_unlock+0xa7/0x2f0 [ 98.465459] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 98.470553] ? __kthread_parkme+0x58/0x1b0 [ 98.474776] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 98.479775] ? trace_hardirqs_on+0xd/0x10 [ 98.484158] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 98.489681] ? __kthread_parkme+0x106/0x1b0 [ 98.493989] kthread+0x345/0x410 [ 98.497347] ? process_one_work+0x1ba0/0x1ba0 [ 98.501844] ? kthread_bind+0x40/0x40 [ 98.505634] ret_from_fork+0x3a/0x50 [ 98.509332] Modules linked in: [ 98.512512] Dumping ftrace buffer: [ 98.516057] (ftrace buffer empty) [ 98.519825] ---[ end trace 8aace7d345b3efeb ]--- [ 98.524623] RIP: 0010:inet_accept+0xf2/0x9f0 [ 98.529073] Code: 84 d2 74 09 80 fa 03 0f 8e 93 07 00 00 48 8d 78 28 41 c7 46 80 ea ff ff ff 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 94 07 00 00 48 b9 00 00 00 00 00 fc ff df 48 8b [ 98.548367] RSP: 0018:ffff8801bfb174b0 EFLAGS: 00010206 [ 98.553780] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000005 [ 98.561092] RDX: dffffc0000000000 RSI: ffffffff858d8e26 RDI: 0000000000000028 [ 98.568419] RBP: ffff8801bfb17598 R08: ffff8801c82c61c0 R09: ffffed00357bd2df [ 98.575732] R10: ffffed00357bd2df R11: ffff8801abde96fb R12: ffff8801abde9640 [ 98.583043] R13: ffff8801bfb174f0 R14: ffff8801bfb17570 R15: 0000000000000000 [ 98.590357] FS: 0000000000000000(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 [ 98.598622] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.604540] CR2: 00007f6ca0592000 CR3: 0000000007e6a000 CR4: 00000000001406f0 [ 98.611865] Kernel panic - not syncing: Fatal exception [ 98.617277] Dumping ftrace buffer: [ 98.620805] (ftrace buffer empty) [ 98.624494] Kernel Offset: disabled [ 98.628103] Rebooting in 86400 seconds..