[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 18.646177] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 23.380295] random: sshd: uninitialized urandom read (32 bytes read) [ 23.742429] random: sshd: uninitialized urandom read (32 bytes read) [ 24.653132] random: sshd: uninitialized urandom read (32 bytes read) [ 24.798196] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.6' (ECDSA) to the list of known hosts. [ 30.235188] random: sshd: uninitialized urandom read (32 bytes read) 2018/07/30 11:30:47 parsed 1 programs [ 31.958057] random: cc1: uninitialized urandom read (8 bytes read) 2018/07/30 11:30:49 executed programs: 0 [ 33.158901] IPVS: ftp: loaded support on port[0] = 21 [ 33.351092] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.357547] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.364733] device bridge_slave_0 entered promiscuous mode [ 33.379501] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.385850] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.392890] device bridge_slave_1 entered promiscuous mode [ 33.406901] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 33.421685] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 33.460423] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 33.477122] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 33.534366] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 33.541532] team0: Port device team_slave_0 added [ 33.554817] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 33.561847] team0: Port device team_slave_1 added [ 33.575450] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 33.592286] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 33.607928] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 33.624749] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 33.731727] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.738156] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.744996] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.751357] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.131422] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 34.137535] 8021q: adding VLAN 0 to HW filter on device bond0 [ 34.177826] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 34.217401] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 34.225233] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 34.261607] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 34.267810] 8021q: adding VLAN 0 to HW filter on device team0 [ 34.304252] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 34.977178] kasan: CONFIG_KASAN_INLINE enabled [ 34.981991] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.989461] general protection fault: 0000 [#1] SMP KASAN [ 34.994999] CPU: 1 PID: 4797 Comm: kworker/1:13 Not tainted 4.18.0-rc7+ #72 [ 35.002087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.011450] Workqueue: events smc_tcp_listen_work [ 35.016298] RIP: 0010:inet_accept+0xf2/0x9f0 [ 35.020692] 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 [ 35.039946] RSP: 0018:ffff8801a91574b0 EFLAGS: 00010206 [ 35.045307] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000005 [ 35.052571] RDX: dffffc0000000000 RSI: ffffffff858d7a06 RDI: 0000000000000028 [ 35.059834] RBP: ffff8801a9157598 R08: ffff8801a903a540 R09: ffffed0039812b5f [ 35.067100] R10: ffffed0039812b5f R11: ffff8801cc095afb R12: ffff8801cc095a40 [ 35.074367] R13: ffff8801a91574f0 R14: ffff8801a9157570 R15: 0000000000000000 [ 35.081633] FS: 0000000000000000(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 [ 35.089857] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.095733] CR2: 0000000008462798 CR3: 0000000007e6a000 CR4: 00000000001406e0 [ 35.102999] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.110265] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.117525] Call Trace: [ 35.120118] ? prune_icache_sb+0x1b0/0x1b0 [ 35.124354] ? inet_recvmsg+0x6d0/0x6d0 [ 35.128330] ? trace_hardirqs_on+0xd/0x10 [ 35.132481] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.138018] ? get_next_ino+0x8b/0x110 [ 35.141905] ? security_socket_post_create+0x9f/0xd0 [ 35.147006] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.152541] ? sock_create_lite+0x4d/0x130 [ 35.156773] ? inet_recvmsg+0x6d0/0x6d0 [ 35.160747] kernel_accept+0x136/0x310 [ 35.164630] smc_tcp_listen_work+0x222/0xef0 [ 35.169036] ? smc_link_save_peer_info+0x320/0x320 [ 35.173968] ? __lock_is_held+0xb5/0x140 [ 35.178037] process_one_work+0xc73/0x1ba0 [ 35.182272] ? trace_hardirqs_on+0x10/0x10 [ 35.186509] ? pwq_dec_nr_in_flight+0x4a0/0x4a0 [ 35.191176] ? lock_repin_lock+0x430/0x430 [ 35.195426] ? __sched_text_start+0x8/0x8 [ 35.199573] ? lock_downgrade+0x8f0/0x8f0 [ 35.203723] ? graph_lock+0x170/0x170 [ 35.207537] ? lock_acquire+0x1e4/0x540 [ 35.211509] ? worker_thread+0x3dc/0x13c0 [ 35.215660] ? lock_downgrade+0x8f0/0x8f0 [ 35.219807] ? lock_release+0xa30/0xa30 [ 35.223781] ? kasan_check_read+0x11/0x20 [ 35.227930] ? do_raw_spin_unlock+0xa7/0x2f0 [ 35.232334] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 35.236920] ? kasan_check_write+0x14/0x20 [ 35.241150] ? do_raw_spin_lock+0xc1/0x200 [ 35.245387] worker_thread+0x189/0x13c0 [ 35.249365] ? process_one_work+0x1ba0/0x1ba0 [ 35.253860] ? graph_lock+0x170/0x170 [ 35.257664] ? __sched_text_start+0x8/0x8 [ 35.261808] ? graph_lock+0x170/0x170 [ 35.265609] ? find_held_lock+0x36/0x1c0 [ 35.269679] ? find_held_lock+0x36/0x1c0 [ 35.273752] ? lock_downgrade+0x8f0/0x8f0 [ 35.277902] ? kasan_check_read+0x11/0x20 [ 35.282046] ? do_raw_spin_unlock+0xa7/0x2f0 [ 35.286454] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 35.291035] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 35.296134] ? __kthread_parkme+0x58/0x1b0 [ 35.300364] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 35.305375] ? trace_hardirqs_on+0xd/0x10 [ 35.309525] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 35.315057] ? __kthread_parkme+0x106/0x1b0 [ 35.319377] kthread+0x345/0x410 [ 35.322739] ? process_one_work+0x1ba0/0x1ba0 [ 35.327234] ? kthread_bind+0x40/0x40 [ 35.331033] ret_from_fork+0x3a/0x50 [ 35.334739] Modules linked in: [ 35.337930] Dumping ftrace buffer: [ 35.341458] (ftrace buffer empty) [ 35.345266] ---[ end trace 7affec7fdc21520c ]--- [ 35.350051] RIP: 0010:inet_accept+0xf2/0x9f0 [ 35.354479] 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 [ 35.373771] RSP: 0018:ffff8801a91574b0 EFLAGS: 00010206 [ 35.379146] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000005 [ 35.386435] RDX: dffffc0000000000 RSI: ffffffff858d7a06 RDI: 0000000000000028 [ 35.393738] RBP: ffff8801a9157598 R08: ffff8801a903a540 R09: ffffed0039812b5f [ 35.401035] R10: ffffed0039812b5f R11: ffff8801cc095afb R12: ffff8801cc095a40 [ 35.408327] R13: ffff8801a91574f0 R14: ffff8801a9157570 R15: 0000000000000000 [ 35.415653] FS: 0000000000000000(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 [ 35.423927] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.429829] CR2: 0000000008462798 CR3: 0000000007e6a000 CR4: 00000000001406e0 [ 35.437126] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.444415] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.451714] Kernel panic - not syncing: Fatal exception [ 35.457511] Dumping ftrace buffer: [ 35.461038] (ftrace buffer empty) [ 35.464726] Kernel Offset: disabled [ 35.468328] Rebooting in 86400 seconds..