[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 44.006414][ T23] audit: type=1800 audit(1575327833.417:25): pid=8113 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 44.025357][ T23] audit: type=1800 audit(1575327833.417:26): pid=8113 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.047115][ T23] audit: type=1800 audit(1575327833.417:27): pid=8113 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 '10.128.0.198' (ECDSA) to the list of known hosts. 2019/12/02 23:04:04 fuzzer started 2019/12/02 23:04:06 dialing manager at 10.128.0.26:38907 2019/12/02 23:04:06 syscalls: 2697 2019/12/02 23:04:06 code coverage: enabled 2019/12/02 23:04:06 comparison tracing: enabled 2019/12/02 23:04:06 extra coverage: extra coverage is not supported by the kernel 2019/12/02 23:04:06 setuid sandbox: enabled 2019/12/02 23:04:06 namespace sandbox: enabled 2019/12/02 23:04:06 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/02 23:04:06 fault injection: enabled 2019/12/02 23:04:06 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/02 23:04:06 net packet injection: enabled 2019/12/02 23:04:06 net device setup: enabled 2019/12/02 23:04:06 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/02 23:04:06 devlink PCI setup: PCI device 0000:00:10.0 is not available 23:04:07 executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = syz_open_procfs(0x0, &(0x7f0000000000)='ns\x00') getdents64(r2, &(0x7f0000001100)=""/142, 0x1e) getdents64(r2, &(0x7f0000000700)=""/143, 0xff53) 23:04:07 executing program 1: r0 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$inet(0x15, 0x5, 0x0) bind$inet(r1, &(0x7f0000000080)={0x2, 0x0, @local}, 0x10) dup2(r0, r1) syzkaller login: [ 58.298693][ T8276] IPVS: ftp: loaded support on port[0] = 21 [ 58.374104][ T8278] IPVS: ftp: loaded support on port[0] = 21 [ 58.441121][ T8276] chnl_net:caif_netlink_parms(): no params data found 23:04:07 executing program 2: r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup\x00', 0x200002, 0x0) r1 = openat$cgroup_int(r0, &(0x7f0000000000)='io.bfq.weight\x00', 0x2, 0x0) write$cgroup_int(r1, 0x0, 0x0) [ 58.530710][ T8276] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.538400][ T8276] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.546540][ T8276] device bridge_slave_0 entered promiscuous mode [ 58.557456][ T8278] chnl_net:caif_netlink_parms(): no params data found [ 58.568122][ T8276] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.576045][ T8276] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.585135][ T8276] device bridge_slave_1 entered promiscuous mode [ 58.626267][ T8276] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.641476][ T8276] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.662216][ T8278] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.684781][ T8278] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.692309][ T8278] device bridge_slave_0 entered promiscuous mode [ 58.722875][ T8278] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.744691][ T8278] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.752277][ T8278] device bridge_slave_1 entered promiscuous mode [ 58.768468][ T8276] team0: Port device team_slave_0 added [ 58.787191][ T8276] team0: Port device team_slave_1 added [ 58.805897][ T8282] IPVS: ftp: loaded support on port[0] = 21 [ 58.820337][ T8278] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link 23:04:08 executing program 3: r0 = socket$inet6_sctp(0xa, 0x5, 0x84) setsockopt$inet_sctp6_SCTP_ENABLE_STREAM_RESET(r0, 0x84, 0x7b, &(0x7f00000000c0), 0x8) [ 58.846952][ T8278] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.937264][ T8276] device hsr_slave_0 entered promiscuous mode [ 58.974891][ T8276] device hsr_slave_1 entered promiscuous mode 23:04:08 executing program 4: bpf$MAP_CREATE(0x0, &(0x7f0000001480)={0x7, 0x0, 0x0, 0xffff}, 0x8f) [ 59.056681][ T8284] IPVS: ftp: loaded support on port[0] = 21 [ 59.084507][ T8278] team0: Port device team_slave_0 added [ 59.122575][ T8278] team0: Port device team_slave_1 added [ 59.244137][ T8276] netdevsim netdevsim0 netdevsim0: renamed from eth0 23:04:08 executing program 5: syz_open_procfs(0x0, &(0x7f0000000200)='fd/4\x00\xa7$\xbf\x05l\xb8\t\xd0\x06\xae\b\x86$dV\x92M%\xfd)0m6Z\x05\xae\xa7\rM\bp\xa6Q\x871B\x973\xfe\x05\x12\xf3\xd496\xf9\x1aM6\xb2|\xc5\x05\xbc\xe71g\xe4<&\xd2\xd8g\xb6\xa2U\xae\x9a\x17F\xa5xi\xe8_\xa8R\x96d\x99\xf6_E\xd0\x8f<\xa840\xd6\x84\xd0\x17\xafP\'\xdc{\b\x94\x00Y+\x18N\\\xc9\x1f\a\xf9X\x125\xb9\xd6\xbf\x1a4V\x10\xa6Uq\xceN\xeb\xa8M\xb2?\xda\xfb\xb1\x9d\x94\x13O\xab\xde\xc0t\x8c\")\x05~\x0f\xb8\xf3\xf6d\xbe\xad\xee\"\xaa\x91\x05\xcb9A\x1a\x8d&\x9e\x81\xcf\x9eWvT\x8a\xbfl\x8a\x83%\xec\x94\xfd\x90\xeb\xb3\xa3\xa8\x90\x90\xdb\xc2X\xf48\xd1\x83Eu\xe5c\xd7\xb7qe\xab\xae\xef*\x9e\x95\xde\xa0\x894r[\\\xc4?\xb7\xcfo\xdb\xbeR\xc5\xbc\xb34\xbe}\xf7n/4}\xbc.t\x94\x1c%\xcb\x93\xea\"Aa(\xd6FX\xd8\b\xd1\x10N{\xe8\xbc)\xc8\x1e6\xff\x95\xa3\xf3\x84\xf4\xa5\xe8f\xc2@\x1f7h\xb3\xd6\xab\x9a\x03\x95>V\\\xc4%T\x94M\xc7`\x83\xa1\xa0\xc8gn\xe3\xfe\xef[\xb3\xbd\x18R\x1b=\xab\x97$\x03\xaa\x84C\x0eWD\xeea\xf5\xb9\x82\xea\xbd5:\"\xf6f/\xa1\x8f%8\xa8\x1e\xcf\xb6\xa7\xe1\x1b1\x94\xc1G\xf9\xfc\xc77\x1c\x00'/370) getsockopt$inet_mreqn(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0) stat(0x0, 0x0) r0 = openat$kvm(0xffffffffffffff9c, &(0x7f00000001c0)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000032000/0x18000)=nil, &(0x7f0000000280)=[@text32={0x20, &(0x7f00000000c0)="b9800000c00f3235010000000f309a090000006500660f3882af724d00002ed8ddc74424008fc4bd87c7442402c43a727fc7442406000000000f011424f30f090f013a360f06c4c18d72d68366baa100ed", 0x299}], 0x1, 0x0, 0x0, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000bf7000)={0x0, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) perf_event_open(&(0x7f0000000000)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc100, 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, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10000003, 0x4, @perf_config_ext={0x2, 0x7}, 0x0, 0x0, 0x0, 0x6}, 0x0, 0x0, 0xffffffffffffffff, 0x0) syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f000002e000/0x18000)=nil, 0x0, 0x0, 0x0, 0x0, 0x0) openat(0xffffffffffffffff, &(0x7f00000000c0)='./bus\x00', 0x0, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000049000/0x18000)=nil, &(0x7f0000000080)=[@textreal={0x8, 0x0}], 0x1, 0x0, 0x0, 0xffffffffffffff11) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x800, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_RUN(r2, 0xae80, 0x0) write$P9_RXATTRWALK(0xffffffffffffffff, &(0x7f0000000080)={0xffffffffffffffe0, 0x1f, 0x1}, 0x20000357) socket$inet6(0xa, 0x0, 0x3) setsockopt$inet_tcp_int(0xffffffffffffffff, 0x6, 0x80000000000002, &(0x7f00000005c0)=0x78, 0x4) [ 59.378525][ T8278] device hsr_slave_0 entered promiscuous mode [ 59.424915][ T8278] device hsr_slave_1 entered promiscuous mode [ 59.504801][ T8278] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.524826][ T8276] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.581227][ T8284] chnl_net:caif_netlink_parms(): no params data found [ 59.592520][ T8276] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.602846][ T8288] IPVS: ftp: loaded support on port[0] = 21 [ 59.636740][ T8276] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.686641][ T8282] chnl_net:caif_netlink_parms(): no params data found [ 59.712532][ T8290] IPVS: ftp: loaded support on port[0] = 21 [ 59.750606][ T8278] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 59.830997][ T8278] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 59.867130][ T8278] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.939191][ T8278] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 60.019747][ T8284] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.027881][ T8284] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.036716][ T8284] device bridge_slave_0 entered promiscuous mode [ 60.050829][ T8282] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.058354][ T8282] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.066178][ T8282] device bridge_slave_0 entered promiscuous mode [ 60.074034][ T8282] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.081194][ T8282] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.089003][ T8282] device bridge_slave_1 entered promiscuous mode [ 60.102062][ T8284] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.110649][ T8284] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.119020][ T8284] device bridge_slave_1 entered promiscuous mode [ 60.139710][ T8284] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.179321][ T8284] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.192088][ T8282] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.204052][ T8282] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.253279][ T8284] team0: Port device team_slave_0 added [ 60.260469][ T8284] team0: Port device team_slave_1 added [ 60.269456][ T8282] team0: Port device team_slave_0 added [ 60.306129][ T8282] team0: Port device team_slave_1 added [ 60.366445][ T8284] device hsr_slave_0 entered promiscuous mode [ 60.424955][ T8284] device hsr_slave_1 entered promiscuous mode [ 60.474869][ T8284] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.487024][ T8288] chnl_net:caif_netlink_parms(): no params data found [ 60.537285][ T8278] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.552028][ T8288] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.559745][ T8288] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.568046][ T8288] device bridge_slave_0 entered promiscuous mode [ 60.576963][ T8288] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.584057][ T8288] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.591954][ T8288] device bridge_slave_1 entered promiscuous mode [ 60.646949][ T8282] device hsr_slave_0 entered promiscuous mode [ 60.684886][ T8282] device hsr_slave_1 entered promiscuous mode [ 60.724793][ T8282] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.749736][ T8276] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.772258][ T8288] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.784074][ T8288] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.830851][ T3948] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.839734][ T3948] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.852004][ T8278] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.862157][ T8288] team0: Port device team_slave_0 added [ 60.869224][ T8284] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 60.941170][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.950284][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.960579][ T8288] team0: Port device team_slave_1 added [ 60.968188][ T8284] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 61.029737][ T8276] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.051906][ T8284] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 61.106030][ T8290] chnl_net:caif_netlink_parms(): no params data found [ 61.114641][ T8284] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 61.160062][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.169374][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.178141][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.185370][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.193376][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.203077][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.211620][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.218739][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.226623][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.235329][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.243956][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.251045][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.258843][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.267852][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.276595][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.284494][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.330766][ T8282] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 61.386483][ T8282] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 61.437206][ T8282] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 61.489788][ T8282] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.541276][ T8295] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.551154][ T8295] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.560175][ T8295] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.567305][ T8295] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.617040][ T8288] device hsr_slave_0 entered promiscuous mode [ 61.665140][ T8288] device hsr_slave_1 entered promiscuous mode [ 61.724937][ T8288] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.758257][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.774328][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.783184][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.791985][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.800480][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.809449][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.818356][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.826152][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.843541][ T8276] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.856137][ T8276] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.868297][ T8290] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.876020][ T8290] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.883626][ T8290] device bridge_slave_0 entered promiscuous mode [ 61.904903][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.913390][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.922018][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.930944][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.939923][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.948223][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.956491][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.965627][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.973873][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.982440][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.991231][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.002493][ T8290] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.013182][ T8290] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.021058][ T8290] device bridge_slave_1 entered promiscuous mode [ 62.042180][ T8278] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.053706][ T8278] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.076710][ T8293] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.086530][ T8293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.096551][ T8290] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.108402][ T8290] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.125217][ T8288] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 62.177002][ T8288] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 62.250717][ T8288] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 62.317627][ T3948] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.325386][ T3948] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.348643][ T8288] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 62.411122][ T3948] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.419906][ T3948] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.442368][ T8284] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.452499][ T8290] team0: Port device team_slave_0 added [ 62.464063][ T8290] team0: Port device team_slave_1 added [ 62.472285][ T8278] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.488857][ T8276] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.525869][ T8284] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.578524][ T8290] device hsr_slave_0 entered promiscuous mode [ 62.635090][ T8290] device hsr_slave_1 entered promiscuous mode [ 62.684818][ T8290] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.694077][ T8293] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.705602][ T8293] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.742424][ T8295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.756553][ T8295] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.795017][ T8295] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.802123][ T8295] bridge0: port 1(bridge_slave_0) entered forwarding state [ 167.794521][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 167.801307][ C0] rcu: 0-...!: (10499 ticks this GP) idle=4f6/1/0x4000000000000002 softirq=11491/11491 fqs=1 [ 167.811827][ C0] (t=10500 jiffies g=6441 q=78) [ 167.816766][ C0] rcu: rcu_preempt kthread starved for 10498 jiffies! g6441 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 167.827874][ C0] rcu: RCU grace-period kthread stack dump: [ 167.834271][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 167.844086][ C0] Call Trace: [ 167.847375][ C0] __schedule+0x9a0/0xcc0 [ 167.851710][ C0] schedule+0x181/0x210 [ 167.855948][ C0] schedule_timeout+0x14f/0x240 [ 167.860822][ C0] ? run_local_timers+0x120/0x120 [ 167.865866][ C0] rcu_gp_kthread+0xed8/0x1770 [ 167.870667][ C0] kthread+0x332/0x350 [ 167.874832][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 167.879937][ C0] ? kthread_blkcg+0xe0/0xe0 [ 167.884517][ C0] ret_from_fork+0x24/0x30 [ 167.889979][ C0] NMI backtrace for cpu 0 [ 167.894302][ C0] CPU: 0 PID: 8298 Comm: syz-executor.1 Not tainted 5.4.0-syzkaller #0 [ 167.902522][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.912564][ C0] Call Trace: [ 167.915857][ C0] [ 167.918715][ C0] dump_stack+0x1fb/0x318 [ 167.923090][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 167.927966][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 167.934232][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 167.940302][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 167.946284][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 167.952165][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 167.957271][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 167.962479][ C0] ? trace_hardirqs_off+0x74/0x80 [ 167.967626][ C0] update_process_times+0x12d/0x180 [ 167.972829][ C0] tick_sched_timer+0x263/0x420 [ 167.977793][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 167.983349][ C0] __hrtimer_run_queues+0x403/0x840 [ 167.988569][ C0] hrtimer_interrupt+0x38c/0xda0 [ 167.993515][ C0] ? debug_smp_processor_id+0x9/0x20 [ 167.998792][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 168.004333][ C0] apic_timer_interrupt+0xf/0x20 [ 168.009271][ C0] [ 168.012209][ C0] RIP: 0010:free_thread_stack+0x177/0x590 [ 168.017925][ C0] Code: 80 3c 28 00 74 08 48 89 df e8 25 a4 69 00 48 8b 3b be fc ff ff ff e8 28 04 00 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 09 a4 69 00 <49> 8b 1c 24 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 [ 168.037526][ C0] RSP: 0018:ffffc90002717730 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 168.045924][ C0] RAX: ffffffff81487433 RBX: ffff88809f886f08 RCX: ffff8880a706e440 [ 168.053885][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002825a00 [ 168.061861][ C0] RBP: ffffc90002717768 R08: 000000000003a768 R09: ffffed10131902ff [ 168.070097][ C0] R10: ffffed10131902ff R11: 0000000000000000 R12: ffff88809f886fa0 [ 168.079013][ C0] R13: dffffc0000000000 R14: 1ffff11013f10df4 R15: ffff888098c817e8 [ 168.087019][ C0] ? mod_memcg_page_state+0x123/0x190 [ 168.092393][ C0] put_task_stack+0xa3/0x130 [ 168.096977][ C0] finish_task_switch+0x3f1/0x550 [ 168.102606][ C0] __schedule+0x9a8/0xcc0 [ 168.106950][ C0] ? ___preempt_schedule+0x16/0x18 [ 168.112144][ C0] preempt_schedule+0xdb/0x120 [ 168.116897][ C0] ___preempt_schedule+0x16/0x18 [ 168.121871][ C0] ? page_poisoning_enabled+0x1c/0x30 [ 168.127329][ C0] prep_new_page+0x161/0x2e0 [ 168.131914][ C0] get_page_from_freelist+0x850/0xaa0 [ 168.137476][ C0] __alloc_pages_nodemask+0x264/0x5d0 [ 168.142878][ C0] alloc_pages_current+0x2db/0x500 [ 168.148113][ C0] __vmalloc_node_range+0x42f/0x940 [ 168.153520][ C0] dup_task_struct+0x5b4/0x910 [ 168.158298][ C0] ? copy_process+0x4c5/0x5510 [ 168.163075][ C0] copy_process+0x4c5/0x5510 [ 168.167802][ C0] _do_fork+0x13e/0x660 [ 168.171962][ C0] __x64_sys_clone+0x20b/0x250 [ 168.176725][ C0] do_syscall_64+0xf7/0x1c0 [ 168.181245][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 168.187144][ C0] RIP: 0033:0x45d049 [ 168.191035][ C0] Code: ff 48 85 f6 0f 84 d7 8c fb ff 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 0f 8c ae 8c fb ff 74 01 c3 31 ed 48 f7 c7 00 00 01 00 75 [ 168.210777][ C0] RSP: 002b:00007ffcf4fe5a88 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 [ 168.219283][ C0] RAX: ffffffffffffffda RBX: 00007f63c50b1700 RCX: 000000000045d049 [ 168.227261][ C0] RDX: 00007f63c50b19d0 RSI: 00007f63c50b0db0 RDI: 00000000003d0f00 [ 168.235222][ C0] RBP: 00007ffcf4fe5ca0 R08: 00007f63c50b1700 R09: 00007f63c50b1700 [ 168.243269][ C0] R10: 00007f63c50b19d0 R11: 0000000000000202 R12: 0000000000000000 [ 168.251369][ C0] R13: 00007ffcf4fe5b3f R14: 00007f63c50b19c0 R15: 000000000075bf2c