[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 58.624592][ T23] audit: type=1800 audit(1578468398.688:25): pid=8548 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 58.643813][ T23] audit: type=1800 audit(1578468398.688:26): pid=8548 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 58.685004][ T23] audit: type=1800 audit(1578468398.698:27): pid=8548 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 '10.128.1.22' (ECDSA) to the list of known hosts. 2020/01/08 07:26:47 fuzzer started 2020/01/08 07:26:48 dialing manager at 10.128.0.26:35703 2020/01/08 07:26:48 syscalls: 2824 2020/01/08 07:26:48 code coverage: enabled 2020/01/08 07:26:48 comparison tracing: enabled 2020/01/08 07:26:48 extra coverage: enabled 2020/01/08 07:26:48 setuid sandbox: enabled 2020/01/08 07:26:48 namespace sandbox: enabled 2020/01/08 07:26:48 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 07:26:48 fault injection: enabled 2020/01/08 07:26:48 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 07:26:48 net packet injection: enabled 2020/01/08 07:26:48 net device setup: enabled 2020/01/08 07:26:48 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 07:26:48 devlink PCI setup: PCI device 0000:00:10.0 is not available 07:26:49 executing program 0: r0 = socket$inet6(0xa, 0x80003, 0xff) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x0, @mcast1, 0x4}, 0x1c) io_setup(0x2, &(0x7f0000000340)=0x0) io_submit(r1, 0x1, &(0x7f0000356ff0)=[&(0x7f00000000c0)={0x0, 0x0, 0x0, 0x1, 0x0, r0, &(0x7f0000000040), 0x354}]) 07:26:50 executing program 1: r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000f76fa8)={0x26, 'rng\x00', 0x0, 0x0, 'ansi_cprng\x00'}, 0x58) r1 = accept4(r0, 0x0, 0x0, 0x0) recvfrom$unix(r1, &(0x7f0000000080)=""/21, 0x15, 0x0, 0x0, 0xfffffffffffffe8b) syzkaller login: [ 70.006869][ T8714] IPVS: ftp: loaded support on port[0] = 21 [ 70.148862][ T8714] chnl_net:caif_netlink_parms(): no params data found [ 70.196355][ T8714] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.205614][ T8714] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.214022][ T8714] device bridge_slave_0 entered promiscuous mode [ 70.224663][ T8714] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.232289][ T8714] bridge0: port 2(bridge_slave_1) entered disabled state 07:26:50 executing program 2: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000040)=0xf) ioctl$KDADDIO(r0, 0x800455ca, 0x0) [ 70.241397][ T8714] device bridge_slave_1 entered promiscuous mode [ 70.259664][ T8717] IPVS: ftp: loaded support on port[0] = 21 [ 70.268700][ T8714] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.282753][ T8714] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.323127][ T8714] team0: Port device team_slave_0 added [ 70.360880][ T8714] team0: Port device team_slave_1 added 07:26:50 executing program 3: r0 = syz_open_dev$usbfs(&(0x7f0000000080)='/dev/bus/usb/00#/00#\x00', 0x73, 0x1) ioctl$USBDEVFS_CONTROL(r0, 0x8008551d, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) [ 70.471276][ T8714] device hsr_slave_0 entered promiscuous mode [ 70.519909][ T8714] device hsr_slave_1 entered promiscuous mode [ 70.616292][ T8719] IPVS: ftp: loaded support on port[0] = 21 [ 70.666547][ T8721] IPVS: ftp: loaded support on port[0] = 21 07:26:50 executing program 4: r0 = socket(0x10, 0x80002, 0x0) r1 = socket$inet_udp(0x2, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000600)={'bridge_slave_1\x00', 0x0}) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000003c0)=ANY=[@ANYBLOB="6000000024000705000000400000009cc1569f00", @ANYRES32=r2, @ANYBLOB="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"], 0x60}}, 0x0) sendmmsg$alg(r0, &(0x7f0000000140), 0xa, 0x0) [ 70.832017][ T8717] chnl_net:caif_netlink_parms(): no params data found [ 70.846412][ T8714] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.912607][ T8714] netdevsim netdevsim0 netdevsim1: renamed from eth1 07:26:51 executing program 5: perf_event_open(&(0x7f0000000100)={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) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'vcan0\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @random="ecee8b1483f4"}, 0x14) setsockopt$packet_int(r0, 0x107, 0x14, &(0x7f0000000180)=0x20, 0x4) sendmmsg(r0, &(0x7f0000000d00), 0x1c4, 0x0) [ 70.974342][ T8714] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.062764][ T8714] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.162097][ T8724] IPVS: ftp: loaded support on port[0] = 21 [ 71.183387][ T8727] IPVS: ftp: loaded support on port[0] = 21 [ 71.213760][ T8719] chnl_net:caif_netlink_parms(): no params data found [ 71.228007][ T8717] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.235601][ T8717] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.243464][ T8717] device bridge_slave_0 entered promiscuous mode [ 71.252815][ T8717] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.259941][ T8717] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.267650][ T8717] device bridge_slave_1 entered promiscuous mode [ 71.291273][ T8721] chnl_net:caif_netlink_parms(): no params data found [ 71.336470][ T8717] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.348054][ T8717] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.403444][ T8719] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.411302][ T8719] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.418883][ T8719] device bridge_slave_0 entered promiscuous mode [ 71.427376][ T8721] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.434549][ T8721] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.442165][ T8721] device bridge_slave_0 entered promiscuous mode [ 71.456038][ T8717] team0: Port device team_slave_0 added [ 71.467291][ T8719] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.474487][ T8719] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.482194][ T8719] device bridge_slave_1 entered promiscuous mode [ 71.489057][ T8721] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.497057][ T8721] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.506304][ T8721] device bridge_slave_1 entered promiscuous mode [ 71.518282][ T8717] team0: Port device team_slave_1 added [ 71.580828][ T8717] device hsr_slave_0 entered promiscuous mode [ 71.629561][ T8717] device hsr_slave_1 entered promiscuous mode [ 71.669341][ T8717] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.677192][ T8717] Cannot create hsr debugfs directory [ 71.706133][ T8719] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.719757][ T8721] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.732946][ T8721] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.753735][ T8719] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.779968][ T8721] team0: Port device team_slave_0 added [ 71.789002][ T8721] team0: Port device team_slave_1 added [ 71.855809][ T8719] team0: Port device team_slave_0 added [ 71.921889][ T8721] device hsr_slave_0 entered promiscuous mode [ 71.979784][ T8721] device hsr_slave_1 entered promiscuous mode [ 72.049376][ T8721] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 72.057043][ T8721] Cannot create hsr debugfs directory [ 72.072389][ T8719] team0: Port device team_slave_1 added [ 72.081229][ T8714] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.152069][ T8719] device hsr_slave_0 entered promiscuous mode [ 72.190017][ T8719] device hsr_slave_1 entered promiscuous mode [ 72.249340][ T8719] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 72.256964][ T8719] Cannot create hsr debugfs directory [ 72.265237][ T8727] chnl_net:caif_netlink_parms(): no params data found [ 72.278152][ T8724] chnl_net:caif_netlink_parms(): no params data found [ 72.323883][ T8714] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.357984][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 72.367258][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.416990][ T8724] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.424809][ T8724] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.432916][ T8724] device bridge_slave_0 entered promiscuous mode [ 72.442713][ T8724] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.450046][ T8724] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.457622][ T8724] device bridge_slave_1 entered promiscuous mode [ 72.471499][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.480729][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.489065][ T2870] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.496308][ T2870] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.504494][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 72.549745][ T3205] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.558934][ T3205] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.567834][ T3205] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.574935][ T3205] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.606217][ T8724] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.638858][ T8727] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.648102][ T8727] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.658648][ T8727] device bridge_slave_0 entered promiscuous mode [ 72.667331][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 72.679441][ T8724] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.688728][ T8717] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 72.756364][ T8717] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 72.804038][ T8717] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 72.851489][ T8727] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.858627][ T8727] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.866493][ T8727] device bridge_slave_1 entered promiscuous mode [ 72.882266][ T3205] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 72.898102][ T8717] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 72.980008][ T8727] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.998400][ T8727] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.012298][ T8724] team0: Port device team_slave_0 added [ 73.020750][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 73.029824][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.038068][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 73.046727][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.055185][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.063396][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.083263][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.092523][ T8719] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 73.162223][ T8719] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 73.212462][ T8724] team0: Port device team_slave_1 added [ 73.218233][ T8719] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 73.275058][ T8714] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.286336][ T8714] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.294351][ T8721] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 73.364136][ T8727] team0: Port device team_slave_0 added [ 73.376552][ T8719] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 73.414245][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.422913][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.431620][ T8721] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 73.471830][ T8721] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 73.516251][ T8727] team0: Port device team_slave_1 added [ 73.561464][ T8724] device hsr_slave_0 entered promiscuous mode [ 73.609548][ T8724] device hsr_slave_1 entered promiscuous mode [ 73.660036][ T8724] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 73.667625][ T8724] Cannot create hsr debugfs directory [ 73.689603][ T8721] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 73.802445][ T8727] device hsr_slave_0 entered promiscuous mode [ 73.859892][ T8727] device hsr_slave_1 entered promiscuous mode [ 73.899409][ T8727] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 73.906995][ T8727] Cannot create hsr debugfs directory [ 73.917624][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.925317][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.970614][ T8714] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.030814][ T8724] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 74.062001][ T8724] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 74.139079][ T8724] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 74.203024][ T8724] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 74.263537][ T8717] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.275054][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.286554][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.298665][ T8721] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.315652][ T8714] device veth0_vlan entered promiscuous mode [ 74.351000][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.362919][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.371868][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.380324][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.388395][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.396208][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.412817][ T8717] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.424781][ T8719] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.436865][ T8727] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 74.484575][ T8714] device veth1_vlan entered promiscuous mode [ 74.500962][ T8727] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 74.532267][ T8727] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 74.585989][ T8721] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.614895][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.624299][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.638644][ T3063] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.645788][ T3063] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.654076][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.662131][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.669902][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.678405][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.687048][ T3063] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.694134][ T3063] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.702396][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.710363][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.718675][ T8727] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 74.780602][ T8719] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.804993][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.813999][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.835807][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.856037][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.864979][ T2870] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.872074][ T2870] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.886191][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.895037][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.908974][ T2870] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.916086][ T2870] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.930052][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.938779][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.953305][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.066120][ T8719] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 75.083419][ T8719] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.148224][ T8717] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 75.158676][ T8717] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.202416][ T8717] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.248697][ T8717] device veth0_vlan entered promiscuous mode [ 75.267245][ T8717] device veth1_vlan entered promiscuous mode [ 179.849156][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 179.855939][ C1] rcu: 1-...!: (10499 ticks this GP) idle=ff6/1/0x4000000000000002 softirq=15433/15433 fqs=146 [ 179.866620][ C1] (t=10501 jiffies g=6961 q=839) [ 179.871641][ C1] rcu: rcu_preempt kthread starved for 10204 jiffies! g6961 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 179.882723][ C1] rcu: RCU grace-period kthread stack dump: [ 179.888600][ C1] rcu_preempt R running task 28984 10 2 0x80004000 [ 179.896492][ C1] Call Trace: [ 179.899779][ C1] __schedule+0x9a0/0xcc0 [ 179.904124][ C1] schedule+0x181/0x210 [ 179.908274][ C1] schedule_timeout+0x14f/0x240 [ 179.913116][ C1] ? run_local_timers+0x120/0x120 [ 179.918132][ C1] rcu_gp_kthread+0xed8/0x1770 [ 179.922917][ C1] kthread+0x332/0x350 [ 179.926972][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 179.932072][ C1] ? kthread_blkcg+0xe0/0xe0 [ 179.936706][ C1] ret_from_fork+0x24/0x30 [ 179.941125][ C1] NMI backtrace for cpu 1 [ 179.945444][ C1] CPU: 1 PID: 8732 Comm: syz-executor.0 Not tainted 5.5.0-rc5-syzkaller #0 [ 179.954012][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 179.964164][ C1] Call Trace: [ 179.967436][ C1] [ 179.970278][ C1] dump_stack+0x1fb/0x318 [ 179.974606][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 179.979444][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 179.985590][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 179.991644][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 179.997624][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 180.003505][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 180.008611][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 180.013802][ C1] ? trace_hardirqs_off+0x74/0x80 [ 180.018817][ C1] update_process_times+0x12d/0x180 [ 180.024007][ C1] tick_sched_timer+0x263/0x420 [ 180.028851][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 180.034387][ C1] __hrtimer_run_queues+0x403/0x840 [ 180.039591][ C1] hrtimer_interrupt+0x38c/0xda0 [ 180.044535][ C1] ? debug_smp_processor_id+0x9/0x20 [ 180.049819][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 180.055354][ C1] apic_timer_interrupt+0xf/0x20 [ 180.060276][ C1] [ 180.063208][ C1] RIP: 0010:__memcg_kmem_uncharge+0x1d/0x1a0 [ 180.069179][ C1] Code: ff 5b 41 5e 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 50 89 f3 49 89 fc 48 b8 00 00 00 00 00 fc ff df <4c> 8d 77 38 4d 89 f5 49 c1 ed 03 41 80 7c 05 00 00 74 08 4c 89 f7 [ 180.088784][ C1] RSP: 0018:ffffc90002077848 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 180.097189][ C1] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880935c0580 [ 180.105156][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00024d9800 [ 180.113116][ C1] RBP: ffffc90002077878 R08: 000000000003a728 R09: ffffed1012d50ee9 [ 180.121076][ C1] R10: ffffed1012d50ee9 R11: 0000000000000000 R12: ffffea00024d9800 [ 180.129121][ C1] R13: dffffc0000000000 R14: 1ffff110132a1a64 R15: ffff888096a87738 [ 180.137108][ C1] ? free_thread_stack+0x124/0x590 [ 180.142208][ C1] free_thread_stack+0x12e/0x590 [ 180.147136][ C1] put_task_stack+0xa3/0x130 [ 180.151718][ C1] finish_task_switch+0x3f1/0x550 [ 180.156731][ C1] __schedule+0x9a8/0xcc0 [ 180.161057][ C1] ? ___preempt_schedule+0x16/0x18 [ 180.166153][ C1] preempt_schedule+0xdb/0x120 [ 180.170908][ C1] ___preempt_schedule+0x16/0x18 [ 180.175830][ C1] ? page_poisoning_enabled+0x1c/0x30 [ 180.181188][ C1] prep_new_page+0x161/0x2e0 [ 180.185772][ C1] get_page_from_freelist+0x850/0xaa0 [ 180.191147][ C1] __alloc_pages_nodemask+0x264/0x5d0 [ 180.196512][ C1] alloc_pages_vma+0x94a/0xd50 [ 180.201270][ C1] do_huge_pmd_anonymous_page+0x883/0xe50 [ 180.207074][ C1] handle_mm_fault+0x2017/0x2890 [ 180.212022][ C1] do_user_addr_fault+0x589/0xaf0 [ 180.217052][ C1] __do_page_fault+0xd3/0x1f0 [ 180.221723][ C1] do_page_fault+0x99/0xb0 [ 180.226141][ C1] page_fault+0x39/0x40 [ 180.230285][ C1] RIP: 0033:0x4005c0 [ 180.234443][ C1] Code: 01 e9 cd 01 00 00 48 8b 44 24 10 48 0b 44 24 28 75 20 48 8b 14 24 48 8b 7c 24 20 be 02 00 00 00 e8 a5 55 00 00 48 8b 4c 24 08 <66> 89 01 e9 a1 01 00 00 48 8b 44 24 08 48 8b 14 24 be 02 00 00 00 [ 180.254034][ C1] RSP: 002b:00007ffd75dca420 EFLAGS: 00010206 [ 180.260096][ C1] RAX: 000000000000000a RBX: 000000000075c9a0 RCX: 0000000020000040 [ 180.268058][ C1] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000000000000000a [ 180.276030][ C1] RBP: 0000000000760060 R08: 0000000000000000 R09: 0000000000000000 [ 180.284098][ C1] R10: 00007ffd75dca530 R11: 0000000000000246 R12: 000000000075bf20 [ 180.292056][ C1] R13: 0000000000012451 R14: 0000000000760068 R15: 000000000075bf2c