[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 56.089887][ T26] audit: type=1800 audit(1578480527.586:25): pid=8496 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 56.109607][ T26] audit: type=1800 audit(1578480527.586:26): pid=8496 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 56.147689][ T26] audit: type=1800 audit(1578480527.586:27): pid=8496 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 '10.128.0.196' (ECDSA) to the list of known hosts. 2020/01/08 10:48:58 fuzzer started 2020/01/08 10:48:59 dialing manager at 10.128.0.26:35703 2020/01/08 10:48:59 syscalls: 2824 2020/01/08 10:48:59 code coverage: enabled 2020/01/08 10:48:59 comparison tracing: enabled 2020/01/08 10:48:59 extra coverage: enabled 2020/01/08 10:48:59 setuid sandbox: enabled 2020/01/08 10:48:59 namespace sandbox: enabled 2020/01/08 10:48:59 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 10:48:59 fault injection: enabled 2020/01/08 10:48:59 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 10:48:59 net packet injection: enabled 2020/01/08 10:48:59 net device setup: enabled 2020/01/08 10:48:59 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 10:48:59 devlink PCI setup: PCI device 0000:00:10.0 is not available 10:49:00 executing program 0: r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000000940)={0x26, 'hash\x00', 0x0, 0x0, 'blake2b-512\x00'}, 0x58) r1 = accept4(r0, 0x0, 0x0, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) sendmmsg$sock(r1, &(0x7f0000000080), 0x6f, 0x0) 10:49:00 executing program 1: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140)='/dev/kvm\x00', 0x0, 0x0) syz_open_dev$mice(0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) ioctl$KVM_CREATE_IRQCHIP(r1, 0xae60) ioctl$TUNSETQUEUE(0xffffffffffffffff, 0x400454d9, 0x0) ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1) ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, 0x0) ioctl$KVM_RUN(0xffffffffffffffff, 0xae80, 0x0) syzkaller login: [ 69.261355][ T8663] IPVS: ftp: loaded support on port[0] = 21 10:49:00 executing program 2: sendmsg$nl_generic(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=ANY=[@ANYBLOB="200000006800130800000000a90300000200000004000000080008000000000000000001f36b6744254ffe2e417304795bd3bfc6afb407dcb7d4380144abbbd96a81b4bc9481b4358416561939062c20f394e598b574000000000c6d757a3cc10ed9abb13edfa687bdd02808a2605d1b73d76ea549e2012287087c9acc01ec20b742f70000000000080076dc99133f08000000232b013034197c9ff810f6f56c338fe8f6f900f8a14c6fd77505d76a2b096b4570a57e49c0f3d8164537", @ANYRES32=0x0], 0x20}}, 0x0) r0 = socket(0x10, 0x80002, 0x0) sendmmsg$alg(r0, &(0x7f0000000140)=[{0x6, 0x0, &(0x7f0000000100), 0x6, &(0x7f0000000100)}], 0x218fe53f1794f59, 0x0) [ 69.438018][ T8663] chnl_net:caif_netlink_parms(): no params data found [ 69.532881][ T8663] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.553332][ T8663] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.573192][ T8663] device bridge_slave_0 entered promiscuous mode [ 69.602527][ T8666] IPVS: ftp: loaded support on port[0] = 21 [ 69.611893][ T8663] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.619829][ T8663] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.634744][ T8663] device bridge_slave_1 entered promiscuous mode [ 69.689976][ T8663] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.715097][ T8663] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 10:49:01 executing program 3: perf_event_open(&(0x7f0000000100)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3c43, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = syz_open_dev$video(&(0x7f0000000100)='/dev/video#\x00', 0x3, 0x0) ioctl$VIDIOC_S_FMT(r0, 0xc0d05605, &(0x7f0000000180)={0x1, @vbi}) [ 69.752576][ T8663] team0: Port device team_slave_0 added [ 69.770880][ T8668] IPVS: ftp: loaded support on port[0] = 21 [ 69.784017][ T8663] team0: Port device team_slave_1 added 10:49:01 executing program 4: r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000500)={0x7, 0x4, 0x8, 0xf1a}, 0x2c) bpf$PROG_LOAD(0x5, &(0x7f0000000040)={0x15, 0x7, &(0x7f0000000100)=@framed={{0x18, 0x2}, [@map={0x18, 0x0, 0x1, 0x0, r1}, @map={0x18, 0x0, 0x1, 0x0, r1}]}, &(0x7f00000000c0)='GPL\x00', 0x4, 0x1000, &(0x7f000062b000)=""/4096, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0}, 0x70) [ 69.936844][ T8663] device hsr_slave_0 entered promiscuous mode [ 70.003453][ T8663] device hsr_slave_1 entered promiscuous mode [ 70.062425][ T8671] IPVS: ftp: loaded support on port[0] = 21 [ 70.097560][ T8666] chnl_net:caif_netlink_parms(): no params data found [ 70.147710][ T8673] IPVS: ftp: loaded support on port[0] = 21 10:49:01 executing program 5: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) clone(0xffd, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) keyctl$set_reqkey_keyring(0xe, 0x5) keyctl$join(0x1, 0x0) request_key(&(0x7f0000000000)='user\x00', &(0x7f0000000080)={'syz', 0x2, 0x74}, &(0x7f00000000c0)='\x00', 0x0) [ 70.294794][ T8666] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.301887][ T8666] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.312725][ T8666] device bridge_slave_0 entered promiscuous mode [ 70.329619][ T8666] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.338304][ T8666] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.347903][ T8666] device bridge_slave_1 entered promiscuous mode [ 70.409049][ T8668] chnl_net:caif_netlink_parms(): no params data found [ 70.459053][ T8666] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.469125][ T8663] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.526460][ T8666] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.545692][ T8677] IPVS: ftp: loaded support on port[0] = 21 [ 70.553472][ T8663] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.606164][ T8666] team0: Port device team_slave_0 added [ 70.612628][ T8663] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.656498][ T8663] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.727622][ T8666] team0: Port device team_slave_1 added [ 70.734617][ T8671] chnl_net:caif_netlink_parms(): no params data found [ 70.770812][ T8668] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.778357][ T8668] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.787670][ T8668] device bridge_slave_0 entered promiscuous mode [ 70.796791][ T8668] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.804088][ T8668] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.811914][ T8668] device bridge_slave_1 entered promiscuous mode [ 70.850771][ T8668] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.871549][ T8673] chnl_net:caif_netlink_parms(): no params data found [ 70.915872][ T8666] device hsr_slave_0 entered promiscuous mode [ 70.963439][ T8666] device hsr_slave_1 entered promiscuous mode [ 71.013439][ T8666] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.021281][ T8666] Cannot create hsr debugfs directory [ 71.032526][ T8668] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.090143][ T8668] team0: Port device team_slave_0 added [ 71.101395][ T8668] team0: Port device team_slave_1 added [ 71.110955][ T8671] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.118963][ T8671] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.127052][ T8671] device bridge_slave_0 entered promiscuous mode [ 71.161559][ T8671] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.170564][ T8671] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.179430][ T8671] device bridge_slave_1 entered promiscuous mode [ 71.211707][ T8673] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.218948][ T8673] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.227035][ T8673] device bridge_slave_0 entered promiscuous mode [ 71.241703][ T8671] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.292942][ T8673] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.300550][ T8673] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.308247][ T8673] device bridge_slave_1 entered promiscuous mode [ 71.317347][ T8671] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.386049][ T8668] device hsr_slave_0 entered promiscuous mode [ 71.423549][ T8668] device hsr_slave_1 entered promiscuous mode [ 71.463277][ T8668] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.470853][ T8668] Cannot create hsr debugfs directory [ 71.497529][ T8671] team0: Port device team_slave_0 added [ 71.505209][ T8677] chnl_net:caif_netlink_parms(): no params data found [ 71.528369][ T8673] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.542371][ T8673] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.553192][ T8671] team0: Port device team_slave_1 added [ 71.614741][ T8666] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 71.667152][ T8673] team0: Port device team_slave_0 added [ 71.673285][ T8666] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 71.766017][ T8671] device hsr_slave_0 entered promiscuous mode [ 71.813550][ T8671] device hsr_slave_1 entered promiscuous mode [ 71.873221][ T8671] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.880851][ T8671] Cannot create hsr debugfs directory [ 71.898089][ T8673] team0: Port device team_slave_1 added [ 71.903975][ T8666] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 71.939392][ T8666] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 72.045251][ T8677] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.052379][ T8677] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.060388][ T8677] device bridge_slave_0 entered promiscuous mode [ 72.116185][ T8673] device hsr_slave_0 entered promiscuous mode [ 72.154027][ T8673] device hsr_slave_1 entered promiscuous mode [ 72.193403][ T8673] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 72.200983][ T8673] Cannot create hsr debugfs directory [ 72.209459][ T8663] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.226455][ T8677] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.234613][ T8677] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.242498][ T8677] device bridge_slave_1 entered promiscuous mode [ 72.284662][ T8677] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.305191][ T8663] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.316442][ T8668] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 72.347836][ T2784] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 72.356255][ T2784] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.370263][ T8677] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.389201][ T8668] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 72.439849][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.448963][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.457661][ T2903] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.464923][ T2903] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.475117][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 72.507091][ T8668] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 72.564526][ T8677] team0: Port device team_slave_0 added [ 72.571710][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.581785][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.590501][ T2734] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.597701][ T2734] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.610083][ T8668] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 72.665774][ T8677] team0: Port device team_slave_1 added [ 72.674683][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 72.713946][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 72.722826][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 72.732591][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.741401][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 72.750192][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.758641][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 72.767249][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.775558][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.805052][ T8671] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 72.848405][ T8671] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 72.909482][ T8671] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 72.966463][ T8673] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 73.009412][ T8673] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 73.065414][ T8671] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 73.118614][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.130274][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.185289][ T8677] device hsr_slave_0 entered promiscuous mode [ 73.233755][ T8677] device hsr_slave_1 entered promiscuous mode [ 73.303259][ T8677] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 73.311249][ T8677] Cannot create hsr debugfs directory [ 73.317893][ T8673] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 73.379351][ T8673] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 73.438384][ T8663] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.519893][ T8663] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.537744][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.548650][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.574340][ T8666] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.607759][ T8677] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 73.675897][ T8677] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 73.736147][ T8677] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 73.806214][ T8677] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 73.879325][ T8666] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.902268][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.910408][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.927642][ T8668] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.943689][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.952241][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.961128][ T2903] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.968640][ T2903] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.978217][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 73.986382][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.995340][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.004356][ T2903] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.012369][ T2903] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.039667][ T8668] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.049987][ T8663] device veth0_vlan entered promiscuous mode [ 74.062552][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.071557][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.080718][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.091059][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.099504][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.107449][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.144084][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.151789][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.160658][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.169441][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.181328][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.188440][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.196804][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.205447][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.214441][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.222851][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.235470][ T8663] device veth1_vlan entered promiscuous mode [ 74.249748][ T8671] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.259477][ T8673] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.276990][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.285606][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.293802][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.301702][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.310656][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.319437][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.328472][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.337003][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.345822][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.354324][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.361457][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.388031][ T8671] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.407370][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.416745][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.426288][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.434796][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.444194][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.452357][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.461092][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.500269][ T8666] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.534653][ T8677] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.548242][ T8673] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.561375][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.570606][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.579507][ T2903] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.586607][ T2903] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.595241][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.604191][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.612505][ T2903] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.619637][ T2903] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.627406][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.635931][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.643783][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.652308][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.661561][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.670054][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.702148][ T8668] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 74.712928][ T8668] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.751360][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.769467][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.785495][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.794479][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.802825][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.810961][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.819282][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.828304][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.837217][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.846523][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.864597][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.879026][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.888688][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.902204][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 179.853077][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 179.859929][ C0] rcu: 0-...!: (1 GPs behind) idle=b96/1/0x4000000000000002 softirq=14742/14750 fqs=36 [ 179.869892][ C0] (t=10501 jiffies g=7549 q=242) [ 179.874909][ C0] rcu: rcu_preempt kthread starved for 10430 jiffies! g7549 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 179.885994][ C0] rcu: RCU grace-period kthread stack dump: [ 179.891873][ C0] rcu_preempt R running task 28984 10 2 0x80004000 [ 179.899924][ C0] Call Trace: [ 179.903250][ C0] __schedule+0x9a0/0xcc0 [ 179.907581][ C0] schedule+0x181/0x210 [ 179.911727][ C0] schedule_timeout+0x14f/0x240 [ 179.916580][ C0] ? run_local_timers+0x120/0x120 [ 179.921597][ C0] rcu_gp_kthread+0xed8/0x1770 [ 179.926365][ C0] kthread+0x332/0x350 [ 179.930419][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 179.935516][ C0] ? kthread_blkcg+0xe0/0xe0 [ 179.940098][ C0] ret_from_fork+0x24/0x30 [ 179.944601][ C0] NMI backtrace for cpu 0 [ 179.948925][ C0] CPU: 0 PID: 8682 Comm: syz-executor.0 Not tainted 5.5.0-rc5-syzkaller #0 [ 179.957493][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 179.967623][ C0] Call Trace: [ 179.970894][ C0] [ 179.973742][ C0] dump_stack+0x1fb/0x318 [ 179.978062][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 179.982920][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 179.989090][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 179.995164][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 180.001169][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 180.007433][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 180.012548][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 180.017753][ C0] ? trace_hardirqs_off+0x74/0x80 [ 180.022786][ C0] update_process_times+0x12d/0x180 [ 180.027986][ C0] tick_sched_timer+0x263/0x420 [ 180.033010][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 180.038561][ C0] __hrtimer_run_queues+0x403/0x840 [ 180.043854][ C0] hrtimer_interrupt+0x38c/0xda0 [ 180.048809][ C0] ? debug_smp_processor_id+0x9/0x20 [ 180.054086][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 180.059624][ C0] apic_timer_interrupt+0xf/0x20 [ 180.064545][ C0] [ 180.067477][ C0] RIP: 0010:mod_memcg_page_state+0x6/0x190 [ 180.073273][ C0] Code: 60 00 eb 0c e8 eb 27 2e 00 eb 05 e8 e4 27 2e 00 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 55 48 89 e5 41 57 <41> 56 41 54 53 41 89 f6 48 89 fb e8 ba 27 2e 00 48 83 c3 38 48 89 [ 180.092869][ C0] RSP: 0018:ffffc90002697e28 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 180.101273][ C0] RAX: 1ffff110145f72e1 RBX: ffff8880a2fb9708 RCX: 0000000000000000 [ 180.109232][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea000247c580 [ 180.117188][ C0] RBP: ffffc90002697e30 R08: 000000000003a728 R09: ffffed10129fd6f9 [ 180.125147][ C0] R10: ffffed10129fd6f9 R11: 0000000000000000 R12: ffff8880a2fb97a0 [ 180.133107][ C0] R13: dffffc0000000000 R14: 1ffff110145f72f4 R15: ffff888094feb7b8 [ 180.141091][ C0] free_thread_stack+0x168/0x590 [ 180.146019][ C0] put_task_stack+0xa3/0x130 [ 180.150600][ C0] finish_task_switch+0x3f1/0x550 [ 180.155613][ C0] schedule_tail+0x20/0x1a0 [ 180.160108][ C0] ret_from_fork+0x8/0x30 [ 180.164425][ C0] RIP: 0033:0x45d919 [ 180.168319][ 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 [ 180.188100][ C0] RSP: 002b:00007f182bb00db0 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 [ 180.196497][ C0] RAX: 0000000000000000 RBX: 00007f182bb01700 RCX: 000000000045d919 [ 180.204455][ C0] RDX: 00007f182bb019d0 RSI: 00007f182bb00db0 RDI: 00000000003d0f00 [ 180.212412][ C0] RBP: 00007fff19175da0 R08: 00007f182bb01700 R09: 00007f182bb01700 [ 180.220380][ C0] R10: 00007f182bb019d0 R11: 0000000000000202 R12: 0000000000000000 [ 180.228339][ C0] R13: 00007fff19175c3f R14: 00007f182bb019c0 R15: 000000000075bf2c