Warning: Permanently added '10.128.0.21' (ECDSA) to the list of known hosts. 2020/01/08 11:06:50 fuzzer started 2020/01/08 11:06:51 dialing manager at 10.128.0.26:35703 2020/01/08 11:06:51 syscalls: 2824 2020/01/08 11:06:51 code coverage: enabled 2020/01/08 11:06:51 comparison tracing: enabled 2020/01/08 11:06:51 extra coverage: enabled 2020/01/08 11:06:51 setuid sandbox: enabled 2020/01/08 11:06:51 namespace sandbox: enabled 2020/01/08 11:06:51 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 11:06:51 fault injection: enabled 2020/01/08 11:06:51 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 11:06:51 net packet injection: enabled 2020/01/08 11:06:51 net device setup: enabled 2020/01/08 11:06:51 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 11:06:51 devlink PCI setup: PCI device 0000:00:10.0 is not available 11:06:52 executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) syz_open_dev$vcsa(&(0x7f00000000c0)='/dev/vcsa#\x00', 0x10000, 0xf88681e33abd8af7) setsockopt$bt_l2cap_L2CAP_LM(0xffffffffffffffff, 0x6, 0x3, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) socket$inet6_tcp(0xa, 0x1, 0x0) r2 = socket$packet(0x11, 0x3, 0x300) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000240)={'syz_tun\x00', 0x0}) r4 = fcntl$dupfd(0xffffffffffffffff, 0x0, 0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x0) ioctl$FIGETBSZ(0xffffffffffffffff, 0x2, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = gettid() sendmsg$nl_route(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000100)=@newlink={0x4c, 0x10, 0x1, 0x0, 0x0, {0x0, 0x0, 0x0, r3}, [@IFLA_NET_NS_PID={0x8, 0x13, r6}, @IFLA_MAP={0x24}]}, 0x4c}}, 0x0) geteuid() setreuid(0x0, 0x0) ioctl$DRM_IOCTL_GET_CLIENT(0xffffffffffffffff, 0xc0286405, 0x0) 11:06:53 executing program 1: r0 = syz_open_dev$video(&(0x7f0000000480)='/dev/video#\x00', 0x3f, 0x0) ioctl$VIDIOC_G_PARM(r0, 0xc0cc5615, &(0x7f0000000200)={0x800000000001}) syzkaller login: [ 67.573942][ T8585] IPVS: ftp: loaded support on port[0] = 21 [ 67.697165][ T8587] IPVS: ftp: loaded support on port[0] = 21 [ 67.751808][ T8585] chnl_net:caif_netlink_parms(): no params data found [ 67.812866][ T8585] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.821103][ T8585] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.830062][ T8585] device bridge_slave_0 entered promiscuous mode [ 67.841366][ T8585] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.849797][ T8585] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.858348][ T8585] device bridge_slave_1 entered promiscuous mode 11:06:53 executing program 2: r0 = socket$kcm(0x10, 0x400000003, 0x10) perf_event_open(&(0x7f0000000180)={0x2, 0x70, 0xea, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) sendmsg$kcm(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)=[{&(0x7f0000000040)="2e0000002b008163e45ae08700000301130f00000000e0fc4cc91b4dd65b2f22344067b5338a146d1c958c000000", 0x2e}], 0x1}, 0x0) [ 67.883368][ T8585] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.906977][ T8585] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.936267][ T8585] team0: Port device team_slave_0 added [ 67.969826][ T8585] team0: Port device team_slave_1 added [ 68.062736][ T8591] IPVS: ftp: loaded support on port[0] = 21 [ 68.096545][ T8585] device hsr_slave_0 entered promiscuous mode 11:06:53 executing program 3: r0 = socket$vsock_stream(0x28, 0x1, 0x0) getsockopt$inet_IP_IPSEC_POLICY(r0, 0x28, 0x6, &(0x7f0000000300)={{{@in, @in6=@mcast2}}}, &(0x7f0000000040)=0xe8) [ 68.165525][ T8585] device hsr_slave_1 entered promiscuous mode [ 68.229700][ T8587] chnl_net:caif_netlink_parms(): no params data found [ 68.360640][ T8587] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.369131][ T8587] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.377287][ T8587] device bridge_slave_0 entered promiscuous mode 11:06:54 executing program 4: syz_mount_image$hfs(&(0x7f0000000040)='hfs\x00', &(0x7f0000000080)='./bus\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f0000000440)={[{@codepage={'codepage', 0x3d, 'macgaelic'}}, {@codepage={'codepage', 0x3d, 'cp852'}}]}) [ 68.423983][ T8587] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.432025][ T8587] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.441415][ T8593] IPVS: ftp: loaded support on port[0] = 21 [ 68.449273][ T8587] device bridge_slave_1 entered promiscuous mode [ 68.509766][ T8585] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.589252][ T8585] netdevsim netdevsim0 netdevsim1: renamed from eth1 11:06:54 executing program 5: bpf$PROG_LOAD(0x5, &(0x7f00000001c0)={0x8, 0x4, &(0x7f0000346fc8)=@framed={{}, [@alu={0x8000000201a7fe3, 0x0, 0x200003e6, 0x61, 0x0, 0x4c}]}, &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0}, 0x45) [ 68.671558][ T8585] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.745146][ T8591] chnl_net:caif_netlink_parms(): no params data found [ 68.763740][ T8587] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.776235][ T8585] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.849187][ T8587] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.871522][ T8596] IPVS: ftp: loaded support on port[0] = 21 [ 68.885363][ T8598] IPVS: ftp: loaded support on port[0] = 21 [ 68.929824][ T8591] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.938082][ T8591] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.946581][ T8591] device bridge_slave_0 entered promiscuous mode [ 68.980549][ T8587] team0: Port device team_slave_0 added [ 68.988751][ T8591] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.996680][ T8591] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.005180][ T8591] device bridge_slave_1 entered promiscuous mode [ 69.024963][ T8591] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.036666][ T8591] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.052488][ T8587] team0: Port device team_slave_1 added [ 69.146590][ T8587] device hsr_slave_0 entered promiscuous mode [ 69.184090][ T8587] device hsr_slave_1 entered promiscuous mode [ 69.223878][ T8587] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.231728][ T8587] Cannot create hsr debugfs directory [ 69.258732][ T8591] team0: Port device team_slave_0 added [ 69.295696][ T8591] team0: Port device team_slave_1 added [ 69.318788][ T8593] chnl_net:caif_netlink_parms(): no params data found [ 69.476465][ T8591] device hsr_slave_0 entered promiscuous mode [ 69.514062][ T8591] device hsr_slave_1 entered promiscuous mode [ 69.553787][ T8591] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.561904][ T8591] Cannot create hsr debugfs directory [ 69.577252][ T8585] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.584926][ T8593] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.592083][ T8593] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.602028][ T8593] device bridge_slave_0 entered promiscuous mode [ 69.611635][ T8593] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.619267][ T8593] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.627357][ T8593] device bridge_slave_1 entered promiscuous mode [ 69.634530][ T8596] chnl_net:caif_netlink_parms(): no params data found [ 69.664633][ T8598] chnl_net:caif_netlink_parms(): no params data found [ 69.681900][ T8593] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.693353][ T8593] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.711707][ T8587] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 69.759341][ T8587] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 69.818556][ T8587] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 69.872726][ T8587] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 69.947712][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.955885][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.974531][ T8593] team0: Port device team_slave_0 added [ 69.996202][ T8585] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.018659][ T8593] team0: Port device team_slave_1 added [ 70.038300][ T8596] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.046244][ T8596] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.055037][ T8596] device bridge_slave_0 entered promiscuous mode [ 70.073194][ T8598] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.081022][ T8598] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.088842][ T8598] device bridge_slave_0 entered promiscuous mode [ 70.100076][ T8598] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.107932][ T8598] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.116743][ T8598] device bridge_slave_1 entered promiscuous mode [ 70.126011][ T8596] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.133448][ T8596] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.141845][ T8596] device bridge_slave_1 entered promiscuous mode [ 70.185351][ T8598] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.197545][ T8598] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.236443][ T8593] device hsr_slave_0 entered promiscuous mode [ 70.274150][ T8593] device hsr_slave_1 entered promiscuous mode [ 70.333731][ T8593] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.341329][ T8593] Cannot create hsr debugfs directory [ 70.357744][ T2876] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.367311][ T2876] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.376090][ T2876] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.383487][ T2876] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.392178][ T2876] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.401440][ T2876] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.409937][ T2876] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.416998][ T2876] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.425849][ T8596] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.441228][ T8596] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.467837][ T2876] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.483196][ T8591] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 70.528454][ T8598] team0: Port device team_slave_0 added [ 70.537583][ T8598] team0: Port device team_slave_1 added [ 70.553808][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.576529][ T8591] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 70.647671][ T8598] device hsr_slave_0 entered promiscuous mode [ 70.684147][ T8598] device hsr_slave_1 entered promiscuous mode [ 70.743805][ T8598] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.751451][ T8598] Cannot create hsr debugfs directory [ 70.761530][ T8596] team0: Port device team_slave_0 added [ 70.771661][ T8596] team0: Port device team_slave_1 added [ 70.781160][ T8591] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 70.837629][ T2902] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.861251][ T8591] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 70.955923][ T8596] device hsr_slave_0 entered promiscuous mode [ 71.004098][ T8596] device hsr_slave_1 entered promiscuous mode [ 71.043753][ T8596] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.051398][ T8596] Cannot create hsr debugfs directory [ 71.091137][ T2902] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 71.100012][ T2902] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.112093][ T2902] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 71.120743][ T2902] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.142947][ T2902] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.171942][ T8593] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 71.216576][ T8593] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 71.261514][ T8593] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 71.318014][ T8593] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 71.375105][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.383459][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.398811][ T8585] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.412164][ T8585] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.439948][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.448441][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.500378][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.509820][ T2903] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.521900][ T8585] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.563677][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.572382][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.605305][ T8598] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 71.644587][ T8598] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 71.705592][ T8598] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 71.747382][ T8587] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.762062][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.771040][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.779908][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.788502][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.797062][ T8596] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 71.846859][ T8596] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 71.896140][ T8596] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 71.965919][ T8598] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 72.014575][ T8587] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.021450][ T8585] device veth0_vlan entered promiscuous mode [ 72.031427][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.039708][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.053961][ T8596] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 72.100599][ T8585] device veth1_vlan entered promiscuous mode [ 72.125107][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.133208][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.143274][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.152090][ T2754] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.159216][ T2754] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.168183][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 72.192973][ T8591] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.207371][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.216650][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.227094][ T46] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.234253][ T46] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.242133][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 72.277639][ T2876] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 72.292155][ T2876] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 72.301087][ T2876] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.310826][ T2876] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 72.319904][ T2876] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.329681][ T2876] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.353218][ T8587] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 72.365611][ T8587] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 72.399475][ T8593] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.407412][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 72.418211][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.444927][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 72.453548][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.463418][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.471332][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.479436][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 72.487538][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.496147][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.560734][ T8605] A link change request failed with some changes committed already. Interface syz_tun may have been left with an inconsistent configuration, please check. [ 177.463589][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 177.470495][ C0] rcu: 0-...!: (1 GPs behind) idle=d6a/1/0x4000000000000002 softirq=12801/12802 fqs=144 [ 177.481011][ C0] (t=10500 jiffies g=6873 q=103) [ 177.486030][ C0] rcu: rcu_preempt kthread starved for 10205 jiffies! g6873 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 177.497124][ C0] rcu: RCU grace-period kthread stack dump: [ 177.503265][ C0] rcu_preempt R running task 28984 10 2 0x80004000 [ 177.511157][ C0] Call Trace: [ 177.514453][ C0] __schedule+0x9a0/0xcc0 [ 177.518792][ C0] schedule+0x181/0x210 [ 177.522940][ C0] schedule_timeout+0x14f/0x240 [ 177.527784][ C0] ? run_local_timers+0x120/0x120 [ 177.532820][ C0] rcu_gp_kthread+0xed8/0x1770 [ 177.537585][ C0] kthread+0x332/0x350 [ 177.541641][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 177.546742][ C0] ? kthread_blkcg+0xe0/0xe0 [ 177.551324][ C0] ret_from_fork+0x24/0x30 [ 177.555747][ C0] NMI backtrace for cpu 0 [ 177.560078][ C0] CPU: 0 PID: 4304 Comm: udevd Not tainted 5.5.0-rc5-syzkaller #0 [ 177.567957][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 177.578088][ C0] Call Trace: [ 177.581366][ C0] [ 177.584211][ C0] dump_stack+0x1fb/0x318 [ 177.588546][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 177.593404][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 177.599557][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 177.605636][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 177.611636][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 177.617532][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 177.622744][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 177.627934][ C0] ? trace_hardirqs_off+0x74/0x80 [ 177.632953][ C0] update_process_times+0x12d/0x180 [ 177.638156][ C0] tick_sched_timer+0x263/0x420 [ 177.643082][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 177.648616][ C0] __hrtimer_run_queues+0x403/0x840 [ 177.653820][ C0] hrtimer_interrupt+0x38c/0xda0 [ 177.658763][ C0] ? debug_smp_processor_id+0x9/0x20 [ 177.664043][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 177.669584][ C0] apic_timer_interrupt+0xf/0x20 [ 177.674523][ C0] [ 177.677456][ C0] RIP: 0010:__memcg_kmem_uncharge+0x12b/0x1a0 [ 177.683537][ C0] Code: 34 24 49 8d 5f 7c 48 89 d8 48 c1 e8 03 42 8a 04 28 84 c0 75 3b f6 03 01 75 10 49 83 c7 10 4c 89 ff 48 8b 75 d0 e8 f5 90 00 00 <48> 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 44 89 e1 80 e1 07 80 [ 177.703585][ C0] RSP: 0018:ffffc900018f7ad0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 177.712075][ C0] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000 [ 177.720034][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002706e40 [ 177.728168][ C0] RBP: ffffc900018f7b00 R08: 000000000003a728 R09: ffffed1013bcc299 [ 177.736129][ C0] R10: ffffed1013bcc299 R11: 0000000000000000 R12: ffffea0002706e40 [ 177.744175][ C0] R13: 1ffffd40004e0dcf R14: ffffea0002706e78 R15: 0000000000000000 [ 177.752154][ C0] ? free_thread_stack+0x124/0x590 [ 177.757276][ C0] free_thread_stack+0x12e/0x590 [ 177.762212][ C0] put_task_stack+0xa3/0x130 [ 177.766801][ C0] finish_task_switch+0x3f1/0x550 [ 177.771831][ C0] __schedule+0x9a8/0xcc0 [ 177.776163][ C0] schedule+0x181/0x210 [ 177.780311][ C0] schedule_hrtimeout_range_clock+0x108/0x510 [ 177.786401][ C0] ? _raw_spin_unlock_irq+0x22/0x80 [ 177.791598][ C0] schedule_hrtimeout_range+0x2a/0x40 [ 177.796959][ C0] ep_poll+0xa4d/0xe80 [ 177.801046][ C0] ? debug_smp_processor_id+0x1c/0x20 [ 177.806421][ C0] ? do_task_dead+0xc0/0xc0 [ 177.810919][ C0] do_epoll_wait+0x1ee/0x260 [ 177.815507][ C0] __x64_sys_epoll_wait+0x9a/0xb0 [ 177.820618][ C0] do_syscall_64+0xf7/0x1c0 [ 177.825137][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 177.831574][ C0] RIP: 0033:0x7f806cc82943 [ 177.835989][ C0] 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 [ 177.855760][ C0] RSP: 002b:00007ffc72f11aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [ 177.864444][ C0] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f806cc82943 [ 177.872403][ C0] RDX: 0000000000000008 RSI: 00007ffc72f11ba0 RDI: 000000000000000a [ 177.880362][ C0] RBP: 0000000000000000 R08: 00000000007210d0 R09: 00007f806cccc1d0 [ 177.888336][ C0] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000003 [ 177.896299][ C0] R13: 0000000000000010 R14: 0000000000734a20 R15: 0000000000721250