[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 51.949271][ T23] audit: type=1800 audit(1578450969.062:25): pid=8392 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 51.980188][ T23] audit: type=1800 audit(1578450969.072:26): pid=8392 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 52.016264][ T23] audit: type=1800 audit(1578450969.072:27): pid=8392 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.1.23' (ECDSA) to the list of known hosts. 2020/01/08 02:36:19 fuzzer started 2020/01/08 02:36:21 dialing manager at 10.128.0.26:35703 2020/01/08 02:36:21 syscalls: 2824 2020/01/08 02:36:21 code coverage: enabled 2020/01/08 02:36:21 comparison tracing: enabled 2020/01/08 02:36:21 extra coverage: enabled 2020/01/08 02:36:21 setuid sandbox: enabled 2020/01/08 02:36:21 namespace sandbox: enabled 2020/01/08 02:36:21 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 02:36:21 fault injection: enabled 2020/01/08 02:36:21 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 02:36:21 net packet injection: enabled 2020/01/08 02:36:21 net device setup: enabled 2020/01/08 02:36:21 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 02:36:21 devlink PCI setup: PCI device 0000:00:10.0 is not available 02:36:22 executing program 0: r0 = socket$inet6(0xa, 0x80003, 0xff) ioctl(r0, 0x1000008912, &(0x7f0000000080)="0800b5055e0bcfe87b2071") r1 = socket$inet6(0xa, 0x2, 0x0) setsockopt$sock_int(r1, 0x1, 0xb, &(0x7f0000000240)=0x2, 0x4) setsockopt$inet6_udp_int(r1, 0x11, 0x1, &(0x7f0000000100)=0x3, 0x4) setsockopt$inet6_udp_int(r1, 0x11, 0x67, &(0x7f00000000c0)=0x7, 0x4) sendto$inet6(r1, 0x0, 0x0, 0x0, &(0x7f0000000000)={0xa, 0x4e21, 0x0, @ipv4}, 0x1c) setsockopt$inet6_udp_int(r1, 0x11, 0x1, &(0x7f0000000080), 0x4) syzkaller login: [ 65.999593][ T8559] IPVS: ftp: loaded support on port[0] = 21 02:36:23 executing program 1: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0) setsockopt$bt_l2cap_L2CAP_OPTIONS(r0, 0x6, 0x1, 0x0, 0x0) [ 66.131175][ T8559] chnl_net:caif_netlink_parms(): no params data found [ 66.190158][ T8562] IPVS: ftp: loaded support on port[0] = 21 [ 66.219047][ T8559] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.240623][ T8559] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.248700][ T8559] device bridge_slave_0 entered promiscuous mode [ 66.273229][ T8559] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.280321][ T8559] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.288506][ T8559] device bridge_slave_1 entered promiscuous mode 02:36:23 executing program 2: r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000c34000)) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000000c0)={{&(0x7f0000068000/0x800000)=nil, 0x800000}, 0x1}) ioctl$UFFDIO_ZEROPAGE(r0, 0xc020aa04, &(0x7f0000000080)={{&(0x7f0000291000/0x400000)=nil, 0x400000}, 0x0, 0x6000000}) [ 66.335014][ T8559] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.373518][ T8559] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.428255][ T8562] chnl_net:caif_netlink_parms(): no params data found [ 66.441394][ T8559] team0: Port device team_slave_0 added [ 66.448773][ T8559] team0: Port device team_slave_1 added 02:36:23 executing program 3: r0 = gettid() r1 = creat(&(0x7f0000001980)='./file0\x00', 0x1) write$binfmt_script(r1, &(0x7f0000000000)={'#! ', './file0'}, 0xb) prctl$PR_SET_PTRACER(0x59616d61, r0) sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) r2 = syz_open_dev$video4linux(&(0x7f0000000080)='/dev/v4l-subdev#\x00', 0x0, 0x0) ioctl$VIDIOC_SUBDEV_S_FMT(r2, 0x4020565a, &(0x7f00000002c0)={0x3, 0xf0f000, {0x3f}}) ioctl$VIDIOC_DQEVENT(r2, 0x80885659, &(0x7f00000034c0)={0x0, @ctrl={0x0, 0x0, @value64}}) pwrite64(0xffffffffffffffff, 0x0, 0x0, 0x0) r3 = getpgrp(0x0) waitid(0x0, r3, 0x0, 0x0, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_SET_FILTER(0xffffffffffffffff, 0x8946, &(0x7f0000000040)='lo\x00\x96o\xd6Q\xb1Y\xa9\xc8J,`\xd2\x98\x00\x00\x00 ') close(r1) setsockopt$inet_sctp6_SCTP_AUTOCLOSE(0xffffffffffffffff, 0x84, 0x4, &(0x7f0000001840), 0x4) clone(0x2000100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) accept(0xffffffffffffffff, 0x0, 0x0) execve(&(0x7f0000000180)='./file0\x00', 0x0, 0x0) ptrace$setopts(0x4206, r0, 0x0, 0x0) [ 66.553111][ T8559] device hsr_slave_0 entered promiscuous mode [ 66.590717][ T8559] device hsr_slave_1 entered promiscuous mode [ 66.631344][ T8562] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.638409][ T8562] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.663543][ T8562] device bridge_slave_0 entered promiscuous mode [ 66.695077][ T8565] IPVS: ftp: loaded support on port[0] = 21 [ 66.704595][ T8562] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.720713][ T8562] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.734125][ T8562] device bridge_slave_1 entered promiscuous mode [ 66.787816][ T8562] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.812702][ T8562] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 02:36:24 executing program 4: r0 = socket$inet6(0xa, 0x3, 0x3c) bind$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x0, @mcast1, 0x2}, 0x1c) getsockname$inet6(r0, 0x0, &(0x7f0000000080)) [ 66.872278][ T8562] team0: Port device team_slave_0 added [ 66.894092][ T8567] IPVS: ftp: loaded support on port[0] = 21 [ 66.907910][ T8562] team0: Port device team_slave_1 added [ 66.960009][ T8559] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.027197][ T8559] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.095427][ T8559] netdevsim netdevsim0 netdevsim2: renamed from eth2 02:36:24 executing program 5: r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) r1 = socket$kcm(0x10, 0x800000000002, 0x0) sendmsg$kcm(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000940)=[{&(0x7f0000000100)="2e000000120081aee4050cecdb4cb90425485e510befccd77f3e9cf0758ef9000600b0eba06ac400060012000000", 0x2e}], 0x1}, 0x0) [ 67.192662][ T8559] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.283001][ T8562] device hsr_slave_0 entered promiscuous mode [ 67.320878][ T8562] device hsr_slave_1 entered promiscuous mode [ 67.360615][ T8562] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.368359][ T8562] Cannot create hsr debugfs directory [ 67.376100][ T8565] chnl_net:caif_netlink_parms(): no params data found [ 67.412200][ T8572] IPVS: ftp: loaded support on port[0] = 21 [ 67.449117][ T8570] IPVS: ftp: loaded support on port[0] = 21 [ 67.473561][ T8565] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.481271][ T8565] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.488880][ T8565] device bridge_slave_0 entered promiscuous mode [ 67.497896][ T8565] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.505042][ T8565] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.513266][ T8565] device bridge_slave_1 entered promiscuous mode [ 67.556612][ T8565] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.568686][ T8565] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.628369][ T8565] team0: Port device team_slave_0 added [ 67.636058][ T8565] team0: Port device team_slave_1 added [ 67.702152][ T8562] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 67.743783][ T8562] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 67.807936][ T8562] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 67.862818][ T8562] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 67.925619][ T8567] chnl_net:caif_netlink_parms(): no params data found [ 67.963087][ T8565] device hsr_slave_0 entered promiscuous mode [ 68.012185][ T8565] device hsr_slave_1 entered promiscuous mode [ 68.071151][ T8565] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.078712][ T8565] Cannot create hsr debugfs directory [ 68.133644][ T8570] chnl_net:caif_netlink_parms(): no params data found [ 68.167333][ T8572] chnl_net:caif_netlink_parms(): no params data found [ 68.232025][ T8570] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.239155][ T8570] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.250196][ T8570] device bridge_slave_0 entered promiscuous mode [ 68.259357][ T8570] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.266528][ T8570] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.274347][ T8570] device bridge_slave_1 entered promiscuous mode [ 68.295500][ T8567] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.302679][ T8567] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.310520][ T8567] device bridge_slave_0 entered promiscuous mode [ 68.335672][ T8567] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.342911][ T8567] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.350563][ T8567] device bridge_slave_1 entered promiscuous mode [ 68.379880][ T8572] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.387099][ T8572] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.394810][ T8572] device bridge_slave_0 entered promiscuous mode [ 68.407089][ T8567] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.419775][ T8570] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.429988][ T8572] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.437583][ T8572] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.445567][ T8572] device bridge_slave_1 entered promiscuous mode [ 68.470214][ T8567] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.495690][ T8570] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.510284][ T8572] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.525592][ T8559] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.539858][ T8567] team0: Port device team_slave_0 added [ 68.548254][ T8567] team0: Port device team_slave_1 added [ 68.559197][ T8572] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.587996][ T8570] team0: Port device team_slave_0 added [ 68.601752][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.609857][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.621554][ T8559] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.643227][ T8570] team0: Port device team_slave_1 added [ 68.651460][ T8572] team0: Port device team_slave_0 added [ 68.666423][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.675028][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.683575][ T2864] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.690789][ T2864] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.711811][ T8565] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 68.778465][ T8565] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 68.853306][ T8572] team0: Port device team_slave_1 added [ 68.859013][ T8565] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 68.963252][ T8567] device hsr_slave_0 entered promiscuous mode [ 69.000843][ T8567] device hsr_slave_1 entered promiscuous mode [ 69.041013][ T8567] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.048668][ T8567] Cannot create hsr debugfs directory [ 69.055841][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.064392][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.072925][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.081368][ T2864] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.088397][ T2864] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.096609][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.105265][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.113911][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.122864][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.131393][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.141062][ T8562] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.160211][ T8565] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 69.219022][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.227759][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.236313][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.244300][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.252490][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.262785][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.271556][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.279701][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.343302][ T8570] device hsr_slave_0 entered promiscuous mode [ 69.391534][ T8570] device hsr_slave_1 entered promiscuous mode [ 69.460593][ T8570] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.468224][ T8570] Cannot create hsr debugfs directory [ 69.479867][ T8559] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.511938][ T8562] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.563154][ T8572] device hsr_slave_0 entered promiscuous mode [ 69.612098][ T8572] device hsr_slave_1 entered promiscuous mode [ 69.650577][ T8572] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.658160][ T8572] Cannot create hsr debugfs directory [ 69.717582][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.726946][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.736617][ T2864] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.743718][ T2864] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.751943][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.759339][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.766982][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.775624][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.784007][ T2864] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.791129][ T2864] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.798683][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.807810][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.820826][ T8559] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.853229][ T2895] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.863764][ T2895] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.873306][ T2895] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.882513][ T2895] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.920618][ T2873] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.929198][ T2873] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.939207][ T2873] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.947580][ T2873] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.955834][ T2873] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.964110][ T2873] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.977864][ T8565] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.994998][ T8562] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.017284][ T8567] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 70.084834][ T8567] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 70.137637][ T8567] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 70.200576][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.209125][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.218052][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.226349][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.240126][ T8567] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 70.308169][ T8565] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.321583][ T8559] device veth0_vlan entered promiscuous mode [ 70.328314][ T2895] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.338272][ T2895] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.346172][ T2895] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.354715][ T2895] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.377071][ T8562] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.393804][ T2895] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.402388][ T2895] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.435151][ T8559] device veth1_vlan entered promiscuous mode [ 70.445149][ T8570] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 70.485151][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.493834][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.506103][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.514505][ T2861] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.521561][ T2861] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.529525][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.538167][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.546616][ T2861] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.553711][ T2861] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.561196][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.591451][ T8570] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 70.641285][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.649233][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.657988][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.667557][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.687570][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.697388][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.712165][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.725129][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.734755][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.747996][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.757648][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.772499][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.804486][ T8565] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 70.825864][ T8565] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.918900][ T8567] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.944964][ T8567] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.974567][ T8570] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 175.790379][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 175.797211][ C1] rcu: 1-...!: (1 GPs behind) idle=54e/1/0x4000000000000002 softirq=14137/14146 fqs=34 [ 175.807175][ C1] (t=10501 jiffies g=6917 q=502) [ 175.812190][ C1] rcu: rcu_preempt kthread starved for 10433 jiffies! g6917 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 175.823269][ C1] rcu: RCU grace-period kthread stack dump: [ 175.829143][ C1] rcu_preempt R running task 29104 10 2 0x80004000 [ 175.837029][ C1] Call Trace: [ 175.840314][ C1] __schedule+0x9a0/0xcc0 [ 175.844644][ C1] schedule+0x181/0x210 [ 175.848788][ C1] schedule_timeout+0x14f/0x240 [ 175.853628][ C1] ? run_local_timers+0x120/0x120 [ 175.858648][ C1] rcu_gp_kthread+0xed8/0x1770 [ 175.863412][ C1] kthread+0x332/0x350 [ 175.867467][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 175.872566][ C1] ? kthread_blkcg+0xe0/0xe0 [ 175.877140][ C1] ret_from_fork+0x24/0x30 [ 175.881571][ C1] NMI backtrace for cpu 1 [ 175.885917][ C1] CPU: 1 PID: 4254 Comm: udevd Not tainted 5.5.0-rc5-syzkaller #0 [ 175.893713][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 175.903769][ C1] Call Trace: [ 175.907038][ C1] [ 175.909885][ C1] dump_stack+0x1fb/0x318 [ 175.914204][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 175.919040][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 175.925183][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 175.931243][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 175.937211][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 175.943096][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 175.948304][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 175.953496][ C1] ? trace_hardirqs_off+0x74/0x80 [ 175.958509][ C1] update_process_times+0x12d/0x180 [ 175.963700][ C1] tick_sched_timer+0x263/0x420 [ 175.968538][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 175.974074][ C1] __hrtimer_run_queues+0x403/0x840 [ 175.979276][ C1] hrtimer_interrupt+0x38c/0xda0 [ 175.984220][ C1] ? debug_smp_processor_id+0x9/0x20 [ 175.989500][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 175.995037][ C1] apic_timer_interrupt+0xf/0x20 [ 175.999962][ C1] [ 176.002891][ C1] RIP: 0010:__memcg_kmem_uncharge+0x0/0x1a0 [ 176.008771][ C1] Code: 00 eb 1b 83 3d 20 bf ac 07 00 74 12 48 81 c3 08 02 00 00 48 89 df 4c 89 f6 e8 8c 85 ff ff 5b 41 5e 5d c3 0f 1f 80 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 50 89 f3 49 89 fc 48 b8 00 [ 176.028384][ C1] RSP: 0018:ffffc900019d7b08 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 176.036789][ C1] RAX: ffffffff81489244 RBX: ffffea0002266280 RCX: ffff888092cfe3c0 [ 176.044750][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002266280 [ 176.052737][ C1] RBP: ffffc900019d7b48 R08: 000000000003a728 R09: ffffed101200a2f1 [ 176.060701][ C1] R10: ffffed101200a2f1 R11: 0000000000000000 R12: ffff888093e53920 [ 176.068664][ C1] R13: dffffc0000000000 R14: 1ffff110127ca724 R15: ffff888090051778 [ 176.076646][ C1] ? free_thread_stack+0x124/0x590 [ 176.081751][ C1] ? free_thread_stack+0x12e/0x590 [ 176.086854][ C1] put_task_stack+0xa3/0x130 [ 176.091434][ C1] finish_task_switch+0x3f1/0x550 [ 176.096452][ C1] __schedule+0x9a8/0xcc0 [ 176.100778][ C1] schedule+0x181/0x210 [ 176.104925][ C1] schedule_hrtimeout_range_clock+0x108/0x510 [ 176.111002][ C1] ? _raw_spin_unlock_irq+0x22/0x80 [ 176.116221][ C1] schedule_hrtimeout_range+0x2a/0x40 [ 176.121594][ C1] ep_poll+0xa4d/0xe80 [ 176.125669][ C1] ? debug_smp_processor_id+0x1c/0x20 [ 176.131033][ C1] ? do_task_dead+0xc0/0xc0 [ 176.135531][ C1] do_epoll_wait+0x1ee/0x260 [ 176.140114][ C1] __x64_sys_epoll_wait+0x9a/0xb0 [ 176.145127][ C1] do_syscall_64+0xf7/0x1c0 [ 176.149624][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 176.155503][ C1] RIP: 0033:0x7f841c9f4943 [ 176.159906][ C1] Code: 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 83 3d b5 dc 2a 00 00 75 13 49 89 ca b8 e8 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 3b c4 00 00 48 89 04 24 [ 176.179502][ C1] RSP: 002b:00007ffd6862b3c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [ 176.187903][ C1] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f841c9f4943 [ 176.195863][ C1] RDX: 0000000000000008 RSI: 00007ffd6862b4c0 RDI: 000000000000000a [ 176.203838][ C1] RBP: 0000000000000000 R08: 0000000000dbe0d0 R09: 00007f841ca3e1d0 [ 176.211796][ C1] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000003 [ 176.219753][ C1] R13: 0000000000000010 R14: 0000000000dc24a0 R15: 0000000000dbe250