[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 49.231776][ T23] audit: type=1800 audit(1578463774.038:25): pid=8356 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 49.250764][ T23] audit: type=1800 audit(1578463774.038:26): pid=8356 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 49.276257][ T23] audit: type=1800 audit(1578463774.038:27): pid=8356 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 '10.128.0.249' (ECDSA) to the list of known hosts. 2020/01/08 06:09:45 fuzzer started 2020/01/08 06:09:48 dialing manager at 10.128.0.26:35703 2020/01/08 06:09:48 syscalls: 2824 2020/01/08 06:09:48 code coverage: enabled 2020/01/08 06:09:48 comparison tracing: enabled 2020/01/08 06:09:48 extra coverage: enabled 2020/01/08 06:09:48 setuid sandbox: enabled 2020/01/08 06:09:48 namespace sandbox: enabled 2020/01/08 06:09:48 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 06:09:48 fault injection: enabled 2020/01/08 06:09:48 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 06:09:48 net packet injection: enabled 2020/01/08 06:09:48 net device setup: enabled 2020/01/08 06:09:48 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 06:09:48 devlink PCI setup: PCI device 0000:00:10.0 is not available 06:09:49 executing program 0: socket$inet_icmp_raw(0x2, 0x3, 0x1) socket$inet_icmp_raw(0x2, 0x3, 0x1) r0 = socket$inet6(0xa, 0x3, 0x6) r1 = syz_open_procfs(0x0, &(0x7f00000001c0)='net/raw\x00') sendfile(r0, r1, &(0x7f0000000240)=0xea, 0x4000000000dc) 06:09:49 executing program 1: socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000280)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = fcntl$dupfd(r1, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) rt_sigprocmask(0x0, &(0x7f0000000080)={0xfffffffffffffffd}, 0x0, 0x8) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) close(r4) sendmsg$DEVLINK_CMD_GET(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x802002}, 0xc, 0x0}, 0x0) io_setup(0x7, &(0x7f0000000100)=0x0) io_submit(r5, 0x32f, &(0x7f00000000c0)=[&(0x7f0000000000)={0x0, 0x0, 0x0, 0x1000800000000001, 0x0, r3, 0x0}]) syzkaller login: [ 64.688485][ T8522] IPVS: ftp: loaded support on port[0] = 21 06:09:49 executing program 2: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) bpf$BPF_BTF_LOAD(0x12, &(0x7f0000000200)={&(0x7f0000000000)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0xc, 0xc, 0x4, [@struct={0x1, 0x0, 0x0, 0x5}]}, {0x0, [0x5a649dab7795f4ff, 0x61]}}, &(0x7f00000002c0)=""/250, 0x28, 0xfa, 0x8}, 0x20) [ 64.854975][ T8522] chnl_net:caif_netlink_parms(): no params data found [ 64.910759][ T8525] IPVS: ftp: loaded support on port[0] = 21 [ 64.962647][ T8522] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.985646][ T8522] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.995111][ T8522] device bridge_slave_0 entered promiscuous mode [ 65.019504][ T8527] IPVS: ftp: loaded support on port[0] = 21 [ 65.026632][ T8522] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.033687][ T8522] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.046274][ T8522] device bridge_slave_1 entered promiscuous mode [ 65.084179][ T8522] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.098296][ T8522] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.136555][ T8522] team0: Port device team_slave_0 added [ 65.144364][ T8522] team0: Port device team_slave_1 added 06:09:50 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) pipe2(0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 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) ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000000000/0x18000)=nil, 0x0, 0x73, 0x0, 0x0, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=@newlink={0x3c, 0x10, 0x501, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, @bond={{0xc, 0x1, 'bond\x00'}, {0xc, 0x2, [@IFLA_BOND_RESEND_IGMP={0x8, 0xf, 0xffffffff}]}}}]}, 0x3c}}, 0x0) [ 65.268285][ T8522] device hsr_slave_0 entered promiscuous mode [ 65.305953][ T8522] device hsr_slave_1 entered promiscuous mode 06:09:50 executing program 4: r0 = socket$inet6_sctp(0xa, 0x801, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r0, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) connect$inet6(r0, &(0x7f0000000080)={0xa, 0x404e23, 0x0, @loopback}, 0x1c) getsockopt$inet_sctp6_SCTP_PR_ASSOC_STATUS(r0, 0x84, 0x73, &(0x7f0000000000)={0x0, 0x0, 0x20}, &(0x7f0000000040)=0x18) [ 65.390631][ T8530] IPVS: ftp: loaded support on port[0] = 21 [ 65.450833][ T8525] chnl_net:caif_netlink_parms(): no params data found [ 65.469425][ T8527] chnl_net:caif_netlink_parms(): no params data found [ 65.636412][ T8525] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.643563][ T8525] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.654541][ T8525] device bridge_slave_0 entered promiscuous mode [ 65.691037][ T8527] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.702753][ T8527] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.712094][ T8527] device bridge_slave_0 entered promiscuous mode [ 65.723417][ T8525] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.731695][ T8525] bridge0: port 2(bridge_slave_1) entered disabled state 06:09:50 executing program 5: r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000140)='auxv\x00') setgroups(0x0, 0x0) lseek(r0, 0x12, 0x0) [ 65.732733][ T8534] IPVS: ftp: loaded support on port[0] = 21 [ 65.745664][ T8525] device bridge_slave_1 entered promiscuous mode [ 65.797581][ T8527] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.807681][ T8527] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.815973][ T8527] device bridge_slave_1 entered promiscuous mode [ 65.822971][ T8522] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.878358][ T8522] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.940867][ T8522] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.015600][ T8527] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.038969][ T8522] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.109639][ T8527] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.126274][ T8537] IPVS: ftp: loaded support on port[0] = 21 [ 66.137995][ T8525] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.150363][ T8525] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.170789][ T8527] team0: Port device team_slave_0 added [ 66.181271][ T8527] team0: Port device team_slave_1 added [ 66.187181][ T8530] chnl_net:caif_netlink_parms(): no params data found [ 66.209419][ T8525] team0: Port device team_slave_0 added [ 66.220711][ T8525] team0: Port device team_slave_1 added [ 66.298179][ T8525] device hsr_slave_0 entered promiscuous mode [ 66.345501][ T8525] device hsr_slave_1 entered promiscuous mode [ 66.394880][ T8525] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.402621][ T8525] Cannot create hsr debugfs directory [ 66.466403][ T8527] device hsr_slave_0 entered promiscuous mode [ 66.495094][ T8527] device hsr_slave_1 entered promiscuous mode [ 66.544739][ T8527] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.552306][ T8527] Cannot create hsr debugfs directory [ 66.597175][ T8530] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.604255][ T8530] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.612454][ T8530] device bridge_slave_0 entered promiscuous mode [ 66.622468][ T8530] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.629858][ T8530] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.637966][ T8530] device bridge_slave_1 entered promiscuous mode [ 66.737639][ T8534] chnl_net:caif_netlink_parms(): no params data found [ 66.758199][ T8530] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.769432][ T8530] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.841838][ T8530] team0: Port device team_slave_0 added [ 66.866684][ T8527] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 66.910580][ T8527] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 66.967395][ T8530] team0: Port device team_slave_1 added [ 66.973904][ T8527] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 67.031153][ T8527] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 67.077651][ T8537] chnl_net:caif_netlink_parms(): no params data found [ 67.088317][ T8534] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.095898][ T8534] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.103496][ T8534] device bridge_slave_0 entered promiscuous mode [ 67.114120][ T8534] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.121288][ T8534] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.129274][ T8534] device bridge_slave_1 entered promiscuous mode [ 67.153189][ T8522] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.163893][ T8525] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 67.227375][ T8530] device hsr_slave_0 entered promiscuous mode [ 67.275731][ T8530] device hsr_slave_1 entered promiscuous mode [ 67.314756][ T8530] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.322340][ T8530] Cannot create hsr debugfs directory [ 67.347955][ T8525] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 67.424521][ T8534] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.442296][ T8534] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.460917][ T8522] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.468657][ T8525] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 67.554721][ T8534] team0: Port device team_slave_0 added [ 67.561141][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.569748][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.585628][ T8525] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 67.643816][ T8537] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.651029][ T8537] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.658856][ T8537] device bridge_slave_0 entered promiscuous mode [ 67.669631][ T8534] team0: Port device team_slave_1 added [ 67.675853][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.684350][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.693396][ T2672] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.700612][ T2672] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.708901][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.717641][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.726192][ T2672] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.733235][ T2672] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.740906][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.752616][ T8537] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.760088][ T8537] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.768235][ T8537] device bridge_slave_1 entered promiscuous mode [ 67.792432][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.878894][ T8534] device hsr_slave_0 entered promiscuous mode [ 67.945027][ T8534] device hsr_slave_1 entered promiscuous mode [ 67.975722][ T8534] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.983318][ T8534] Cannot create hsr debugfs directory [ 67.990355][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.999226][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.007949][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.016649][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.025876][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.035107][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.048686][ T8537] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.082932][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.091631][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.103848][ T8522] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.116030][ T8522] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.134193][ T8537] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.153148][ T3911] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.162286][ T3911] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.223306][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.231788][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.241916][ T8530] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 68.268164][ T8522] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.280073][ T8537] team0: Port device team_slave_0 added [ 68.289395][ T8537] team0: Port device team_slave_1 added [ 68.312116][ T8534] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 68.368252][ T8530] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 68.437309][ T8534] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 68.498006][ T8534] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 68.547807][ T8534] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 68.604960][ T8530] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 68.697364][ T8537] device hsr_slave_0 entered promiscuous mode [ 68.725039][ T8537] device hsr_slave_1 entered promiscuous mode [ 68.765613][ T8537] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.773209][ T8537] Cannot create hsr debugfs directory [ 68.801924][ T3911] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.810798][ T3911] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.820027][ T8530] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 68.879138][ T8525] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.887045][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.895580][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.903798][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.913251][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.960079][ T8522] device veth0_vlan entered promiscuous mode [ 68.982465][ T8527] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.992826][ T8522] device veth1_vlan entered promiscuous mode [ 69.001927][ T3911] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.012555][ T3911] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.020841][ T3911] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.032131][ T8525] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.068518][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.078682][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.088948][ T8527] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.120201][ T8537] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 69.152633][ T8537] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 69.225444][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.235741][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.244396][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.253653][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.260814][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.269400][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.278222][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.287775][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.294893][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.302841][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.343612][ T8537] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 174.354603][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 174.361361][ C1] rcu: 1-...!: (10499 ticks this GP) idle=cda/1/0x4000000000000002 softirq=12546/12551 fqs=1 [ 174.371845][ C1] (t=10501 jiffies g=6761 q=117) [ 174.376862][ C1] rcu: rcu_preempt kthread starved for 10500 jiffies! g6761 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 174.387945][ C1] rcu: RCU grace-period kthread stack dump: [ 174.393824][ C1] rcu_preempt R running task 29104 10 2 0x80004000 [ 174.401712][ C1] Call Trace: [ 174.405023][ C1] __schedule+0x9a0/0xcc0 [ 174.409354][ C1] schedule+0x181/0x210 [ 174.413504][ C1] schedule_timeout+0x14f/0x240 [ 174.418343][ C1] ? run_local_timers+0x120/0x120 [ 174.423360][ C1] rcu_gp_kthread+0xed8/0x1770 [ 174.428123][ C1] kthread+0x332/0x350 [ 174.432200][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 174.437312][ C1] ? kthread_blkcg+0xe0/0xe0 [ 174.441896][ C1] ret_from_fork+0x24/0x30 [ 174.446328][ C1] NMI backtrace for cpu 1 [ 174.450651][ C1] CPU: 1 PID: 8522 Comm: syz-executor.0 Not tainted 5.5.0-rc5-syzkaller #0 [ 174.459217][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 174.469261][ C1] Call Trace: [ 174.472562][ C1] [ 174.475426][ C1] dump_stack+0x1fb/0x318 [ 174.479768][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 174.484607][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 174.490770][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 174.496834][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 174.502824][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 174.508711][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 174.513825][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 174.519023][ C1] ? trace_hardirqs_off+0x74/0x80 [ 174.524064][ C1] update_process_times+0x12d/0x180 [ 174.529261][ C1] tick_sched_timer+0x263/0x420 [ 174.534106][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 174.539642][ C1] __hrtimer_run_queues+0x403/0x840 [ 174.544857][ C1] hrtimer_interrupt+0x38c/0xda0 [ 174.549805][ C1] ? debug_smp_processor_id+0x9/0x20 [ 174.555093][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 174.560625][ C1] apic_timer_interrupt+0xf/0x20 [ 174.565548][ C1] [ 174.568476][ C1] RIP: 0010:mod_memcg_page_state+0x6/0x190 [ 174.574280][ C1] 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 [ 174.593870][ C1] RSP: 0018:ffffc90001fb7bb8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 174.602443][ C1] RAX: 1ffff110128268b1 RBX: ffff888094134588 RCX: 0000000000000000 [ 174.610400][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002669600 [ 174.618362][ C1] RBP: ffffc90001fb7bc0 R08: 000000000003a728 R09: ffffed1013ddea99 [ 174.626466][ C1] R10: ffffed1013ddea99 R11: 0000000000000000 R12: ffff888094134620 [ 174.634547][ C1] R13: dffffc0000000000 R14: 1ffff110128268c4 R15: ffff88809eef54b8 [ 174.642814][ C1] free_thread_stack+0x168/0x590 [ 174.647751][ C1] put_task_stack+0xa3/0x130 [ 174.652333][ C1] finish_task_switch+0x3f1/0x550 [ 174.657355][ C1] __schedule+0x9a8/0xcc0 [ 174.661684][ C1] schedule+0x181/0x210 [ 174.665829][ C1] do_nanosleep+0x1d0/0x6c0 [ 174.670331][ C1] hrtimer_nanosleep+0x3a6/0x5b0 [ 174.675261][ C1] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 174.681056][ C1] __x64_sys_nanosleep+0x186/0x1d0 [ 174.686159][ C1] do_syscall_64+0xf7/0x1c0 [ 174.690662][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 174.696542][ C1] RIP: 0033:0x4593f0 [ 174.700430][ C1] Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d 41 f5 61 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 d1 fb ff c3 48 83 ec 08 e8 ea 46 00 00 [ 174.720020][ C1] RSP: 002b:00007ffd98a1b1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 [ 174.728421][ C1] RAX: ffffffffffffffda RBX: 0000000000010ed4 RCX: 00000000004593f0 [ 174.736377][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffd98a1b1f0 [ 174.744334][ C1] RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000001ea6940 [ 174.752289][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 174.760333][ C1] R13: 00007ffd98a1b240 R14: 0000000000010ec1 R15: 00007ffd98a1b250