[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 63.496631][ T26] audit: type=1800 audit(1560108760.505:25): pid=8636 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 63.519661][ T26] audit: type=1800 audit(1560108760.505:26): pid=8636 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 63.589052][ T26] audit: type=1800 audit(1560108760.505:27): pid=8636 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.7' (ECDSA) to the list of known hosts. 2019/06/09 19:48:00 parsed 1 programs 2019/06/09 19:48:02 executed programs: 0 syzkaller login: [ 985.019651][ T8803] IPVS: ftp: loaded support on port[0] = 21 [ 985.083905][ T8803] chnl_net:caif_netlink_parms(): no params data found [ 985.112632][ T8803] bridge0: port 1(bridge_slave_0) entered blocking state [ 985.120665][ T8803] bridge0: port 1(bridge_slave_0) entered disabled state [ 985.128450][ T8803] device bridge_slave_0 entered promiscuous mode [ 985.136630][ T8803] bridge0: port 2(bridge_slave_1) entered blocking state [ 985.143790][ T8803] bridge0: port 2(bridge_slave_1) entered disabled state [ 985.151490][ T8803] device bridge_slave_1 entered promiscuous mode [ 985.168131][ T8803] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 985.178342][ T8803] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 985.195730][ T8803] team0: Port device team_slave_0 added [ 985.203178][ T8803] team0: Port device team_slave_1 added [ 985.271030][ T8803] device hsr_slave_0 entered promiscuous mode [ 985.329092][ T8803] device hsr_slave_1 entered promiscuous mode [ 985.387088][ T8803] bridge0: port 2(bridge_slave_1) entered blocking state [ 985.394259][ T8803] bridge0: port 2(bridge_slave_1) entered forwarding state [ 985.401986][ T8803] bridge0: port 1(bridge_slave_0) entered blocking state [ 985.409104][ T8803] bridge0: port 1(bridge_slave_0) entered forwarding state [ 985.442825][ T8803] 8021q: adding VLAN 0 to HW filter on device bond0 [ 985.454389][ T8805] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 985.474420][ T8805] bridge0: port 1(bridge_slave_0) entered disabled state [ 985.482600][ T8805] bridge0: port 2(bridge_slave_1) entered disabled state [ 985.491909][ T8805] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 985.503332][ T8803] 8021q: adding VLAN 0 to HW filter on device team0 [ 985.513938][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 985.522468][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 985.529535][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 985.549714][ T8805] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 985.558116][ T8805] bridge0: port 2(bridge_slave_1) entered blocking state [ 985.565314][ T8805] bridge0: port 2(bridge_slave_1) entered forwarding state [ 985.573462][ T8805] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 985.582233][ T8805] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 985.591427][ T8805] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 985.604859][ T8803] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 985.616768][ T8803] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 985.629270][ T8805] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 985.637873][ T8805] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 985.647742][ T8805] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 985.666635][ T8803] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 985.752749][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 985.816752][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 985.888194][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 985.948962][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 985.961504][ T8821] kasan: CONFIG_KASAN_INLINE enabled [ 985.966909][ T8821] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 985.975850][ T8821] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 985.982796][ T8821] CPU: 0 PID: 8821 Comm: syz-executor.0 Not tainted 5.2.0-rc3+ #21 [ 985.990682][ T8821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 986.000812][ T8821] RIP: 0010:tcp_v6_send_reset+0x1e2/0x10c0 [ 986.006607][ T8821] Code: 46 fb 4d 85 ff 0f 85 00 04 00 00 e8 28 23 46 fb 49 83 e5 fe e8 1f 23 46 fb 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 92 0d 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b [ 986.026216][ T8821] RSP: 0018:ffff888095497b58 EFLAGS: 00010246 [ 986.032262][ T8821] RAX: dffffc0000000000 RBX: ffff88809497d310 RCX: ffffffff862a84ca [ 986.040216][ T8821] RDX: 0000000000000000 RSI: ffffffff862a84e1 RDI: 0000000000000007 [ 986.048168][ T8821] RBP: ffff888095497c10 R08: ffff88808d794100 R09: ffffed1012a92f2f [ 986.056121][ T8821] R10: ffff888095497c20 R11: 0000000000000003 R12: ffff8880907df5e0 [ 986.064082][ T8821] R13: 0000000000000000 R14: ffff88809497d200 R15: 0000000000000000 [ 986.072040][ T8821] FS: 0000555556a96940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 986.080977][ T8821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 986.087540][ T8821] CR2: 00007fe352f2edb8 CR3: 000000008946e000 CR4: 00000000001406f0 [ 986.095533][ T8821] Call Trace: [ 986.098815][ T8821] ? tcp_v6_send_response+0x1f80/0x1f80 [ 986.104366][ T8821] ? __local_bh_enable_ip+0x15a/0x270 [ 986.109816][ T8821] ? _raw_spin_unlock_bh+0x31/0x40 [ 986.114907][ T8821] ? __local_bh_enable_ip+0x15a/0x270 [ 986.120260][ T8821] tcp_v6_do_rcv+0xe7b/0x12c0 [ 986.124966][ T8821] __release_sock+0x129/0x390 [ 986.129642][ T8821] tcp_close+0x6b3/0x10c0 [ 986.133988][ T8821] ? ip_mc_drop_socket+0x211/0x270 [ 986.139127][ T8821] inet_release+0xe0/0x1f0 [ 986.143553][ T8821] inet6_release+0x53/0x80 [ 986.147954][ T8821] __sock_release+0xce/0x2a0 [ 986.152527][ T8821] sock_close+0x1b/0x30 [ 986.156679][ T8821] __fput+0x2ff/0x890 [ 986.160646][ T8821] ? __sock_release+0x2a0/0x2a0 [ 986.165481][ T8821] ____fput+0x16/0x20 [ 986.169450][ T8821] task_work_run+0x145/0x1c0 [ 986.174024][ T8821] exit_to_usermode_loop+0x273/0x2c0 [ 986.179293][ T8821] do_syscall_64+0x58e/0x680 [ 986.183863][ T8821] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 986.189733][ T8821] RIP: 0033:0x412f61 [ 986.193615][ T8821] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 986.213208][ T8821] RSP: 002b:00007fffecfa66e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 986.221606][ T8821] RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000412f61 [ 986.229556][ T8821] RDX: 0000000000000000 RSI: 0000000000000081 RDI: 0000000000000005 [ 986.237509][ T8821] RBP: 0000000000000000 R08: 0000000000760cb0 R09: ffffffffffffffff [ 986.245462][ T8821] R10: 00007fffecfa67b0 R11: 0000000000000293 R12: 0000000000760cb8 [ 986.253415][ T8821] R13: 0000000000000003 R14: 0000000000000000 R15: 000000000075bf2c [ 986.261394][ T8821] Modules linked in: [ 986.267373][ T8821] ---[ end trace d08e2e9001116582 ]--- [ 986.274066][ T8821] RIP: 0010:tcp_v6_send_reset+0x1e2/0x10c0 [ 986.279895][ T8821] Code: 46 fb 4d 85 ff 0f 85 00 04 00 00 e8 28 23 46 fb 49 83 e5 fe e8 1f 23 46 fb 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 92 0d 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b [ 986.299755][ T8821] RSP: 0018:ffff888095497b58 EFLAGS: 00010246 [ 986.305827][ T8821] RAX: dffffc0000000000 RBX: ffff88809497d310 RCX: ffffffff862a84ca [ 986.314297][ T8821] RDX: 0000000000000000 RSI: ffffffff862a84e1 RDI: 0000000000000007 [ 986.322352][ T8821] RBP: ffff888095497c10 R08: ffff88808d794100 R09: ffffed1012a92f2f [ 986.330467][ T8821] R10: ffff888095497c20 R11: 0000000000000003 R12: ffff8880907df5e0 [ 986.338422][ T8821] R13: 0000000000000000 R14: ffff88809497d200 R15: 0000000000000000 [ 986.346434][ T8821] FS: 0000555556a96940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 986.355381][ T8821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 986.362002][ T8821] CR2: 00007fe352f2edb8 CR3: 000000008946e000 CR4: 00000000001406f0 [ 986.370017][ T8821] Kernel panic - not syncing: Fatal exception [ 986.377179][ T8821] Kernel Offset: disabled [ 986.381499][ T8821] Rebooting in 86400 seconds..