[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 42.702480][ T23] audit: type=1800 audit(1575434861.773:25): pid=8112 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 42.740964][ T23] audit: type=1800 audit(1575434861.773:26): pid=8112 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.780482][ T23] audit: type=1800 audit(1575434861.773:27): pid=8112 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 '10.128.0.218' (ECDSA) to the list of known hosts. 2019/12/04 04:47:52 fuzzer started 2019/12/04 04:47:54 dialing manager at 10.128.0.26:42111 2019/12/04 04:47:54 syscalls: 2689 2019/12/04 04:47:54 code coverage: enabled 2019/12/04 04:47:54 comparison tracing: enabled 2019/12/04 04:47:54 extra coverage: extra coverage is not supported by the kernel 2019/12/04 04:47:54 setuid sandbox: enabled 2019/12/04 04:47:54 namespace sandbox: enabled 2019/12/04 04:47:54 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 04:47:54 fault injection: enabled 2019/12/04 04:47:54 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 04:47:54 net packet injection: enabled 2019/12/04 04:47:54 net device setup: enabled 2019/12/04 04:47:54 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 04:47:54 devlink PCI setup: PCI device 0000:00:10.0 is not available 04:47:55 executing program 0: r0 = socket$inet6(0xa, 0x1, 0x8010000000000084) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x0) setsockopt$inet_sctp6_SCTP_PEER_ADDR_PARAMS(r0, 0x84, 0x9, &(0x7f0000000240)={0x0, @in={{0xa, 0x0, @dev}}}, 0x98) 04:47:55 executing program 1: syz_open_dev$sndseq(0x0, 0x0, 0x0) timer_create(0x0, &(0x7f0000000100)={0x0, 0x12}, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) timer_settime(0x0, 0x0, &(0x7f00000004c0), 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, &(0x7f0000000880)={@remote}, 0x20) r0 = syz_open_dev$video(&(0x7f0000000040)='/dev/video#\x00', 0x108000001, 0x0) preadv(r0, &(0x7f0000000800)=[{&(0x7f0000000000)=""/31, 0x1f}, {0x0}, {0x0}, {0x0}], 0x4, 0x0) syzkaller login: [ 56.647154][ T8279] IPVS: ftp: loaded support on port[0] = 21 04:47:55 executing program 2: r0 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) getsockopt$bt_BT_FLUSHABLE(r0, 0x112, 0x8, 0x0, &(0x7f0000000080)) [ 56.800033][ T8279] chnl_net:caif_netlink_parms(): no params data found [ 56.863429][ T8282] IPVS: ftp: loaded support on port[0] = 21 [ 56.925093][ T8279] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.941152][ T8279] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.949073][ T8279] device bridge_slave_0 entered promiscuous mode [ 56.985953][ T8284] IPVS: ftp: loaded support on port[0] = 21 [ 56.995961][ T8279] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.003888][ T8279] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.012975][ T8279] device bridge_slave_1 entered promiscuous mode 04:47:56 executing program 3: perf_event_open(&(0x7f0000000580)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = socket$nl_route(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) sendmsg$nl_route(r1, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000006c0)={&(0x7f0000000040)=@newlink={0x54, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, r2}, [@IFLA_LINKINFO={0x34, 0x12, @bridge_slave={{0x14, 0x1, 'bridge_slave\x00'}, {0x1c, 0x5, [@IFLA_BRPORT_PROTECT={0x8}, @IFLA_BRPORT_UNICAST_FLOOD={0x8}, @IFLA_BRPORT_FAST_LEAVE={0x8}]}}}]}, 0x54}}, 0x0) [ 57.084447][ T8279] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.101587][ T8279] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.195258][ T8279] team0: Port device team_slave_0 added [ 57.206447][ T8279] team0: Port device team_slave_1 added [ 57.264514][ T8282] chnl_net:caif_netlink_parms(): no params data found [ 57.307355][ T8288] IPVS: ftp: loaded support on port[0] = 21 04:47:56 executing program 4: syz_open_dev$evdev(&(0x7f00000002c0)='/dev/input/event#\x00', 0x0, 0x0) unshare(0x20600) r0 = syz_open_dev$evdev(0x0, 0x0, 0x0) ioctl$EVIOCGRAB(r0, 0x40044581, 0x0) [ 57.363432][ T8279] device hsr_slave_0 entered promiscuous mode [ 57.402837][ T8279] device hsr_slave_1 entered promiscuous mode [ 57.463222][ T8284] chnl_net:caif_netlink_parms(): no params data found [ 57.562834][ T8282] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.569933][ T8282] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.581499][ T8282] device bridge_slave_0 entered promiscuous mode [ 57.591674][ T8279] netdevsim netdevsim0 netdevsim0: renamed from eth0 04:47:56 executing program 5: unshare(0x600) r0 = timerfd_create(0x0, 0x0) timerfd_gettime(r0, &(0x7f0000000180)) [ 57.654798][ T8282] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.665258][ T8282] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.676709][ T8282] device bridge_slave_1 entered promiscuous mode [ 57.690748][ T8279] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.706577][ T8290] IPVS: ftp: loaded support on port[0] = 21 [ 57.735349][ T8279] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.804334][ T8279] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.862021][ T8284] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.869112][ T8284] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.877408][ T8284] device bridge_slave_0 entered promiscuous mode [ 57.928927][ T8284] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.939175][ T8284] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.947074][ T8284] device bridge_slave_1 entered promiscuous mode [ 57.965711][ T8284] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.976563][ T8282] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.988611][ T8282] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.012589][ T8284] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.033088][ T8284] team0: Port device team_slave_0 added [ 58.040102][ T8284] team0: Port device team_slave_1 added [ 58.063376][ T8293] IPVS: ftp: loaded support on port[0] = 21 [ 58.086415][ T8282] team0: Port device team_slave_0 added [ 58.093640][ T8288] chnl_net:caif_netlink_parms(): no params data found [ 58.153481][ T8284] device hsr_slave_0 entered promiscuous mode [ 58.201078][ T8284] device hsr_slave_1 entered promiscuous mode [ 58.240841][ T8284] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.249451][ T8282] team0: Port device team_slave_1 added [ 58.322938][ T8282] device hsr_slave_0 entered promiscuous mode [ 58.361117][ T8282] device hsr_slave_1 entered promiscuous mode [ 58.401396][ T8282] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.437880][ T8284] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 58.553431][ T8284] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 58.597026][ T8284] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 58.654026][ T8288] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.661353][ T8288] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.669033][ T8288] device bridge_slave_0 entered promiscuous mode [ 58.682392][ T8290] chnl_net:caif_netlink_parms(): no params data found [ 58.696517][ T8284] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 58.754203][ T8288] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.762037][ T8288] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.769755][ T8288] device bridge_slave_1 entered promiscuous mode [ 58.793667][ T8282] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 58.844394][ T8282] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 58.905423][ T8282] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 58.952927][ T8282] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 59.004967][ T8288] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.038049][ T8290] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.045353][ T8290] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.053350][ T8290] device bridge_slave_0 entered promiscuous mode [ 59.072241][ T8288] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.095804][ T8290] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.103094][ T8290] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.111809][ T8290] device bridge_slave_1 entered promiscuous mode [ 59.133921][ T8288] team0: Port device team_slave_0 added [ 59.167394][ T8288] team0: Port device team_slave_1 added [ 59.180317][ T8290] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.203075][ T8290] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.223068][ T8293] chnl_net:caif_netlink_parms(): no params data found [ 59.248069][ T8290] team0: Port device team_slave_0 added [ 59.265200][ T8279] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.277623][ T8290] team0: Port device team_slave_1 added [ 59.322639][ T8288] device hsr_slave_0 entered promiscuous mode [ 59.371119][ T8288] device hsr_slave_1 entered promiscuous mode [ 59.420806][ T8288] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.474724][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.483571][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.496924][ T8279] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.514056][ T8293] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.521397][ T8293] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.528976][ T8293] device bridge_slave_0 entered promiscuous mode [ 59.536355][ T8288] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.576663][ T8288] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.614459][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.623782][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.632814][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.639945][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.648690][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.662741][ T8293] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.669813][ T8293] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.679347][ T8293] device bridge_slave_1 entered promiscuous mode [ 59.734406][ T8290] device hsr_slave_0 entered promiscuous mode [ 59.771571][ T8290] device hsr_slave_1 entered promiscuous mode [ 59.811198][ T8290] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.818811][ T8288] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.891610][ T8288] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.937736][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.946454][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.956909][ T8292] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.964036][ T8292] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.972370][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.001439][ T8284] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.018449][ T8293] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.032597][ T8293] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.042682][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.052251][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.061282][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.069550][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.078320][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.089185][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.099932][ T8282] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.119787][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.128591][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.147890][ T8293] team0: Port device team_slave_0 added [ 60.158290][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.168002][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.188566][ T8293] team0: Port device team_slave_1 added [ 60.233648][ T8293] device hsr_slave_0 entered promiscuous mode [ 60.271179][ T8293] device hsr_slave_1 entered promiscuous mode [ 60.311178][ T8293] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.331141][ T8290] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 60.385294][ T8282] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.393382][ T8284] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.401037][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.408719][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.420117][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.428520][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.441145][ T8279] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.458725][ T8290] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 60.503150][ T8290] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 60.558920][ T8293] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 60.614880][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.624930][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.633758][ T2993] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.641110][ T2993] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.648702][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.657661][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.667090][ T2993] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.674223][ T2993] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.682445][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.691400][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.699655][ T2993] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.706758][ T2993] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.714277][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.722923][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.731322][ T2993] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.738361][ T2993] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.745925][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.754500][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.763120][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.771966][ T8290] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 60.828009][ T8279] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.839118][ T8293] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 60.882356][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.890212][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.898606][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.907390][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.916122][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.924552][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.932257][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.941136][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.949422][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.957795][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.966139][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.985177][ T8282] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.998720][ T8282] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.011723][ T8293] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 61.063990][ T8293] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 61.128800][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.137272][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.145667][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.200443][ T8284] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.215854][ T8284] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.227671][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.238196][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.247053][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.256659][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.265470][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.273535][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.281321][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.289964][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.298401][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.306630][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.316767][ T8282] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.326680][ T8288] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.359041][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.367247][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.381263][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.388811][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 166.430628][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 166.437711][ C0] (detected by 0, t=10502 jiffies, g=6497, q=231) [ 166.444207][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953775-4294943272), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 166.457552][ C0] syz-executor.3 R running task 24840 8288 8286 0x0000400a [ 166.465439][ C0] Call Trace: [ 166.468709][ C0] [ 166.471554][ C0] sched_show_task+0x40f/0x560 [ 166.476320][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 166.481600][ C0] update_process_times+0x12d/0x180 [ 166.486782][ C0] tick_sched_timer+0x263/0x420 [ 166.491616][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 166.497145][ C0] __hrtimer_run_queues+0x403/0x840 [ 166.502436][ C0] hrtimer_interrupt+0x38c/0xda0 [ 166.507374][ C0] ? debug_smp_processor_id+0x9/0x20 [ 166.512648][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 166.518182][ C0] apic_timer_interrupt+0xf/0x20 [ 166.523105][ C0] [ 166.526043][ C0] RIP: 0010:free_thread_stack+0x16d/0x590 [ 166.531749][ C0] Code: c3 08 48 89 d8 48 c1 e8 03 42 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 [ 166.551335][ C0] RSP: 0018:ffffc900022c7528 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 166.559730][ C0] RAX: ffffffff81487433 RBX: ffff88808f763008 RCX: ffff8880958b4440 [ 166.567688][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea000250d900 [ 166.575645][ C0] RBP: ffffc900022c7560 R08: 000000000003a768 R09: fffffbfff120248a [ 166.583603][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88808f7630a0 [ 166.591695][ C0] R13: dffffc0000000000 R14: 1ffff11011eec614 R15: ffff88808e1a5728 [ 166.599663][ C0] ? mod_memcg_page_state+0x123/0x190 [ 166.605024][ C0] ? free_thread_stack+0x168/0x590 [ 166.610124][ C0] put_task_stack+0xa3/0x130 [ 166.614787][ C0] finish_task_switch+0x3f1/0x550 [ 166.619815][ C0] __schedule+0x9a8/0xcc0 [ 166.624140][ C0] ? ___preempt_schedule+0x16/0x18 [ 166.629236][ C0] preempt_schedule+0xdb/0x120 [ 166.633985][ C0] ___preempt_schedule+0x16/0x18 [ 166.638909][ C0] try_to_wake_up+0xe78/0x1050 [ 166.643668][ C0] wake_up_q+0x8c/0xe0 [ 166.647725][ C0] __mutex_unlock_slowpath+0x586/0x5b0 [ 166.653173][ C0] mutex_unlock+0x1b/0x30 [ 166.657493][ C0] __rtnl_unlock+0x2c/0xa0 [ 166.661904][ C0] netdev_run_todo+0xe5/0xe10 [ 166.666575][ C0] rtnetlink_rcv_msg+0x890/0xd40 [ 166.671513][ C0] ? rcu_lock_release+0x9/0x30 [ 166.676260][ C0] ? rcu_lock_release+0x9/0x30 [ 166.681017][ C0] ? rcu_lock_release+0x9/0x30 [ 166.686553][ C0] netlink_rcv_skb+0x19e/0x3d0 [ 166.691304][ C0] ? rtnetlink_bind+0x80/0x80 [ 166.695974][ C0] rtnetlink_rcv+0x1c/0x20 [ 166.700372][ C0] netlink_unicast+0x767/0x920 [ 166.705129][ C0] netlink_sendmsg+0xa21/0xd40 [ 166.709885][ C0] ? netlink_getsockopt+0x9f0/0x9f0 [ 166.715071][ C0] __sys_sendto+0x442/0x5e0 [ 166.719596][ C0] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 166.725645][ C0] ? prepare_exit_to_usermode+0x221/0x5b0 [ 166.731349][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 166.736793][ C0] __x64_sys_sendto+0xe5/0x100 [ 166.741544][ C0] do_syscall_64+0xf7/0x1c0 [ 166.746033][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.751911][ C0] RIP: 0033:0x414373 [ 166.755790][ C0] Code: ff 0f 83 b0 19 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d fd 40 66 00 00 75 17 49 89 ca b8 2c 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 81 19 00 00 c3 48 83 ec 08 e8 87 fa ff ff [ 166.775379][ C0] RSP: 002b:00007ffd7f56b9f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 166.783771][ C0] RAX: ffffffffffffffda RBX: 0000000000a72200 RCX: 0000000000414373 [ 166.791727][ C0] RDX: 000000000000002c RSI: 0000000000a72250 RDI: 0000000000000003 [ 166.799680][ C0] RBP: 0000000000000000 R08: 00007ffd7f56ba00 R09: 000000000000000c [ 166.807636][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 166.815589][ C0] R13: 0000000000000000 R14: 0000000000a72250 R15: 0000000000000003 [ 166.823562][ C0] rcu: rcu_preempt kthread starved for 10541 jiffies! g6497 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 166.834734][ C0] rcu: RCU grace-period kthread stack dump: [ 166.840612][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 166.848495][ C0] Call Trace: [ 166.851776][ C0] __schedule+0x9a0/0xcc0 [ 166.856130][ C0] schedule+0x181/0x210 [ 166.860281][ C0] schedule_timeout+0x14f/0x240 [ 166.865208][ C0] ? run_local_timers+0x120/0x120 [ 166.870227][ C0] rcu_gp_kthread+0xed8/0x1770 [ 166.874990][ C0] kthread+0x332/0x350 [ 166.879040][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 166.884137][ C0] ? kthread_blkcg+0xe0/0xe0 [ 166.888711][ C0] ret_from_fork+0x24/0x30