[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 61.491197][ T24] audit: type=1800 audit(1558139796.373:25): pid=8795 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 61.536367][ T24] audit: type=1800 audit(1558139796.373:26): pid=8795 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 61.574216][ T24] audit: type=1800 audit(1558139796.373:27): pid=8795 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 '10.128.0.220' (ECDSA) to the list of known hosts. 2019/05/18 00:36:48 fuzzer started 2019/05/18 00:36:51 dialing manager at 10.128.0.26:37669 2019/05/18 00:36:51 syscalls: 1006 2019/05/18 00:36:51 code coverage: enabled 2019/05/18 00:36:51 comparison tracing: enabled 2019/05/18 00:36:51 extra coverage: extra coverage is not supported by the kernel 2019/05/18 00:36:51 setuid sandbox: enabled 2019/05/18 00:36:51 namespace sandbox: enabled 2019/05/18 00:36:51 Android sandbox: /sys/fs/selinux/policy does not exist 2019/05/18 00:36:51 fault injection: enabled 2019/05/18 00:36:51 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/05/18 00:36:51 net packet injection: enabled 2019/05/18 00:36:51 net device setup: enabled 00:36:53 executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_SIOCETHTOOL(r0, 0x8946, &(0x7f0000000540)={'bridge_slave_0\x00', &(0x7f0000000500)=@ethtool_cmd={0x4a}}) syzkaller login: [ 79.092476][ T8960] IPVS: ftp: loaded support on port[0] = 21 [ 79.103757][ T8960] NET: Registered protocol family 30 [ 79.109598][ T8960] Failed to register TIPC socket type 00:36:54 executing program 1: r0 = socket$inet_udplite(0x2, 0x2, 0x88) ioctl(r0, 0x1000008912, &(0x7f0000000040)="0adc1f123c123f319bd070") r1 = bpf$PROG_LOAD(0x5, &(0x7f0000b7a000)={0x1, 0x3, &(0x7f0000346fc8)=@framed, &(0x7f0000f6bffb)='GPL\x00', 0x1, 0xfb, &(0x7f00000002c0)=""/251}, 0x48) r2 = socket$kcm(0x29, 0x2, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x32, &(0x7f00000000c0)=r1, 0x4) close(r2) 00:36:54 executing program 2: setsockopt$inet6_buf(0xffffffffffffffff, 0x29, 0x0, &(0x7f0000002000)="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", 0x12e) setsockopt$inet6_MRT6_DEL_MFC_PROXY(0xffffffffffffffff, 0x29, 0xd3, &(0x7f0000002000)={{}, {0xa, 0x0, 0x0, @empty, 0x1}}, 0x5c) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000080)={&(0x7f0000000000), 0xc, 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0x1}}, 0x0) setsockopt$inet6_tcp_TCP_REPAIR_WINDOW(0xffffffffffffffff, 0x6, 0x1d, &(0x7f0000002000)={0x0, 0x0, 0x1}, 0x14) r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_int(r0, 0x29, 0x40, &(0x7f0000001fde), 0x4) [ 79.449045][ T8962] IPVS: ftp: loaded support on port[0] = 21 [ 79.469456][ T8962] NET: Registered protocol family 30 [ 79.474972][ T8962] Failed to register TIPC socket type [ 79.693688][ T8964] IPVS: ftp: loaded support on port[0] = 21 [ 79.710529][ T8964] NET: Registered protocol family 30 [ 79.715848][ T8964] Failed to register TIPC socket type 00:36:54 executing program 3: r0 = socket(0x40000000015, 0x5, 0x0) bind$inet(r0, &(0x7f0000bf4000)={0x2, 0x0, @loopback}, 0x10) sendto$inet(r0, &(0x7f0000000180), 0x100000, 0x0, &(0x7f000069affb)={0x2, 0x0, @loopback}, 0x10) [ 80.212244][ T8966] IPVS: ftp: loaded support on port[0] = 21 [ 80.240766][ T8966] NET: Registered protocol family 30 [ 80.246099][ T8966] Failed to register TIPC socket type 00:36:55 executing program 4: r0 = socket$can_bcm(0x1d, 0x2, 0x2) connect(r0, &(0x7f00000000c0)=@tipc=@nameseq={0x1e, 0x1, 0x0, {0x2}}, 0x80) [ 80.804576][ T8968] IPVS: ftp: loaded support on port[0] = 21 [ 80.840867][ T8968] NET: Registered protocol family 30 [ 80.846208][ T8968] Failed to register TIPC socket type 00:36:56 executing program 5: r0 = socket$inet6(0xa, 0x202000000802, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000f68000)={@loopback, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0x4101}, 0x20) [ 81.516780][ T8970] IPVS: ftp: loaded support on port[0] = 21 [ 81.557901][ T8970] NET: Registered protocol family 30 [ 81.563241][ T8970] Failed to register TIPC socket type [ 82.119672][ T8960] chnl_net:caif_netlink_parms(): no params data found [ 82.508146][ T8960] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.515727][ T8960] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.609893][ T8960] device bridge_slave_0 entered promiscuous mode [ 82.741149][ T8960] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.838874][ T8960] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.987144][ T8960] device bridge_slave_1 entered promiscuous mode [ 83.469792][ T8960] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 83.788873][ T8960] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 84.517412][ T8960] team0: Port device team_slave_0 added [ 84.817831][ T8960] team0: Port device team_slave_1 added [ 86.071674][ T8960] device hsr_slave_0 entered promiscuous mode [ 86.460376][ T8960] device hsr_slave_1 entered promiscuous mode [ 88.887518][ T8960] 8021q: adding VLAN 0 to HW filter on device bond0 [ 89.428280][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 89.516605][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 89.638135][ T8960] 8021q: adding VLAN 0 to HW filter on device team0 [ 89.999211][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 90.037031][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 90.045620][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.052907][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 90.598608][ T9237] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 90.636988][ T9237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 90.645693][ T9237] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 90.896886][ T9237] bridge0: port 2(bridge_slave_1) entered blocking state [ 90.904005][ T9237] bridge0: port 2(bridge_slave_1) entered forwarding state [ 91.168884][ T9326] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 91.337613][ T9326] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 91.402880][ T9326] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 91.472994][ T9326] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 91.775848][ T9326] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 91.909991][ T9326] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 92.107330][ T9326] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.443985][ T9248] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 92.497168][ T9248] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 92.538282][ T9248] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 92.707028][ T9248] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 92.856148][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 93.418755][ T8960] 8021q: adding VLAN 0 to HW filter on device batadv0 00:37:14 executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_SIOCETHTOOL(r0, 0x8946, &(0x7f0000000540)={'bridge_slave_0\x00', &(0x7f0000000500)=@ethtool_cmd={0x4a}}) 00:37:14 executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_SIOCETHTOOL(r0, 0x8946, &(0x7f0000000540)={'bridge_slave_0\x00', &(0x7f0000000500)=@ethtool_cmd={0x4a}}) 00:37:16 executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_SIOCETHTOOL(r0, 0x8946, &(0x7f0000000540)={'bridge_slave_0\x00', &(0x7f0000000500)=@ethtool_cmd={0x4a}}) 00:37:17 executing program 0: r0 = socket$inet_udplite(0x2, 0x2, 0x88) ioctl(r0, 0x1000008912, &(0x7f0000000000)="0adc1f123c123f319bd070") syz_emit_ethernet(0x36, &(0x7f0000000080)={@local, @link_local, [], {@ipv4={0x800, {{0x8, 0x4, 0x0, 0x0, 0x28, 0x0, 0x0, 0x0, 0x0, 0x0, @remote, @local, {[@timestamp={0x44, 0xc, 0x5, 0x0, 0x0, [{}, {}]}]}}, @igmp={0x0, 0x0, 0x0, @multicast1}}}}}, 0x0) [ 103.361643][ T9454] IPVS: ftp: loaded support on port[0] = 21 [ 103.772747][ T9457] IPVS: ftp: loaded support on port[0] = 21 [ 104.001417][ T9454] NET: Registered protocol family 30 [ 104.240378][ T9457] list_add double add: new=ffffffff89544ab0, prev=ffffffff89334ac0, next=ffffffff89544ab0. [ 104.322843][ T9458] IPVS: ftp: loaded support on port[0] = 21 [ 104.335378][ T9465] IPVS: ftp: loaded support on port[0] = 21 [ 104.346382][ T9454] Failed to register TIPC socket type [ 104.745500][ T9457] ------------[ cut here ]------------ [ 104.751005][ T9457] kernel BUG at lib/list_debug.c:29! 00:37:20 executing program 0: r0 = socket$inet_udplite(0x2, 0x2, 0x88) ioctl(r0, 0x1000008912, &(0x7f0000000000)="0adc1f123c123f319bd070") syz_emit_ethernet(0x36, &(0x7f0000000080)={@local, @link_local, [], {@ipv4={0x800, {{0x8, 0x4, 0x0, 0x0, 0x28, 0x0, 0x0, 0x0, 0x0, 0x0, @remote, @local, {[@timestamp={0x44, 0xc, 0x5, 0x0, 0x0, [{}, {}]}]}}, @igmp={0x0, 0x0, 0x0, @multicast1}}}}}, 0x0) [ 105.366341][ T9457] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 105.372476][ T9457] CPU: 1 PID: 9457 Comm: syz-executor.3 Not tainted 5.1.0+ #18 [ 105.380018][ T9457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 105.390095][ T9457] RIP: 0010:__list_add_valid.cold+0x26/0x3c [ 105.395987][ T9457] Code: 56 ff ff ff 4c 89 e1 48 c7 c7 20 4c a3 87 e8 00 60 25 fe 0f 0b 48 89 f2 4c 89 e1 4c 89 ee 48 c7 c7 60 4d a3 87 e8 e9 5f 25 fe <0f> 0b 48 89 f1 48 c7 c7 e0 4c a3 87 4c 89 e6 e8 d5 5f 25 fe 0f 0b [ 105.415592][ T9457] RSP: 0018:ffff888076c9fb88 EFLAGS: 00010282 [ 105.421659][ T9457] RAX: 0000000000000058 RBX: ffffffff89544920 RCX: 0000000000000000 [ 105.429841][ T9457] RDX: 0000000000000000 RSI: ffffffff815afbe6 RDI: ffffed100ed93f63 [ 105.437811][ T9457] RBP: ffff888076c9fba0 R08: 0000000000000058 R09: ffffed1015d06011 [ 105.445782][ T9457] R10: ffffed1015d06010 R11: ffff8880ae830087 R12: ffffffff89544ab0 [ 105.453759][ T9457] R13: ffffffff89544ab0 R14: ffffffff89544ab0 R15: ffffffff89544a50 [ 105.461731][ T9457] FS: 0000000001942940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 105.470658][ T9457] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.477246][ T9457] CR2: 0000000000a5048d CR3: 0000000076c4f000 CR4: 00000000001406e0 [ 105.485240][ T9457] Call Trace: [ 105.488539][ T9457] ? mutex_lock_nested+0x16/0x20 [ 105.493477][ T9457] proto_register+0x459/0x8e0 [ 105.499385][ T9457] ? lockdep_init_map+0x1be/0x6d0 [ 105.504434][ T9457] tipc_socket_init+0x1c/0x70 [ 105.509109][ T9457] tipc_init_net+0x32a/0x5b0 [ 105.514051][ T9457] ? tipc_exit_net+0x40/0x40 [ 105.518644][ T9457] ops_init+0xb6/0x410 [ 105.522714][ T9457] setup_net+0x2d3/0x740 [ 105.526976][ T9457] ? copy_net_ns+0x1c0/0x340 [ 105.531573][ T9457] ? ops_init+0x410/0x410 [ 105.535901][ T9457] ? kasan_check_write+0x14/0x20 [ 105.540839][ T9457] ? down_read_killable+0x51/0x220 [ 105.545959][ T9457] copy_net_ns+0x1df/0x340 [ 105.550383][ T9457] create_new_namespaces+0x400/0x7b0 [ 105.555685][ T9457] unshare_nsproxy_namespaces+0xc2/0x200 [ 105.561323][ T9457] ksys_unshare+0x440/0x980 [ 105.565831][ T9457] ? trace_hardirqs_on+0x67/0x230 [ 105.570860][ T9457] ? walk_process_tree+0x2d0/0x2d0 [ 105.575977][ T9457] ? blkcg_exit_queue+0x30/0x30 [ 105.580829][ T9457] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 105.586298][ T9457] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.592377][ T9457] ? do_syscall_64+0x26/0x680 [ 105.597053][ T9457] ? lockdep_hardirqs_on+0x418/0x5d0 [ 105.602341][ T9457] __x64_sys_unshare+0x31/0x40 [ 105.607108][ T9457] do_syscall_64+0x103/0x680 [ 105.611718][ T9457] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.617612][ T9457] RIP: 0033:0x45b897 [ 105.621510][ T9457] Code: 00 00 00 b8 63 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 8d fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8d 8d fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 105.641113][ T9457] RSP: 002b:00007ffe3c74a6d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 105.649533][ T9457] RAX: ffffffffffffffda RBX: 000000000073c988 RCX: 000000000045b897 [ 105.657517][ T9457] RDX: 0000000000000000 RSI: 00007ffe3c74a680 RDI: 0000000040000000 [ 105.665486][ T9457] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000005 [ 105.673449][ T9457] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000414ab0 [ 105.681411][ T9457] R13: 0000000000414b40 R14: 0000000000000000 R15: 0000000000000000 [ 105.689379][ T9457] Modules linked in: 00:37:21 executing program 0: r0 = socket$inet_udplite(0x2, 0x2, 0x88) ioctl(r0, 0x1000008912, &(0x7f0000000000)="0adc1f123c123f319bd070") syz_emit_ethernet(0x36, &(0x7f0000000080)={@local, @link_local, [], {@ipv4={0x800, {{0x8, 0x4, 0x0, 0x0, 0x28, 0x0, 0x0, 0x0, 0x0, 0x0, @remote, @local, {[@timestamp={0x44, 0xc, 0x5, 0x0, 0x0, [{}, {}]}]}}, @igmp={0x0, 0x0, 0x0, @multicast1}}}}}, 0x0) [ 106.732002][ T3878] kobject: 'loop0' (00000000dfd87830): kobject_uevent_env [ 106.952828][ T3878] kobject: 'loop0' (00000000dfd87830): fill_kobj_path: path = '/devices/virtual/block/loop0' 00:37:22 executing program 0: r0 = socket$inet_udplite(0x2, 0x2, 0x88) ioctl(r0, 0x1000008912, &(0x7f0000000000)="0adc1f123c123f319bd070") syz_emit_ethernet(0x36, &(0x7f0000000080)={@local, @link_local, [], {@ipv4={0x800, {{0x8, 0x4, 0x0, 0x0, 0x28, 0x0, 0x0, 0x0, 0x0, 0x0, @remote, @local, {[@timestamp={0x44, 0xc, 0x5, 0x0, 0x0, [{}, {}]}]}}, @igmp={0x0, 0x0, 0x0, @multicast1}}}}}, 0x0) [ 107.930844][ T3878] kobject: 'loop0' (00000000dfd87830): kobject_uevent_env [ 108.028000][ T9499] IPVS: ftp: loaded support on port[0] = 21 [ 108.171747][ T3878] kobject: 'loop0' (00000000dfd87830): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 109.292285][ T3878] kobject: 'loop0' (00000000dfd87830): kobject_uevent_env [ 109.386333][ T3878] kobject: 'loop0' (00000000dfd87830): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 114.116295][ T9457] ---[ end trace b0febc41b0fd7ea4 ]--- [ 114.121815][ T9457] RIP: 0010:__list_add_valid.cold+0x26/0x3c [ 114.296377][ T9457] Code: 56 ff ff ff 4c 89 e1 48 c7 c7 20 4c a3 87 e8 00 60 25 fe 0f 0b 48 89 f2 4c 89 e1 4c 89 ee 48 c7 c7 60 4d a3 87 e8 e9 5f 25 fe <0f> 0b 48 89 f1 48 c7 c7 e0 4c a3 87 4c 89 e6 e8 d5 5f 25 fe 0f 0b [ 114.597296][ T9457] RSP: 0018:ffff888076c9fb88 EFLAGS: 00010282 [ 114.603419][ T9457] RAX: 0000000000000058 RBX: ffffffff89544920 RCX: 0000000000000000