[ 49.040865][ T27] audit: type=1800 audit(1578452924.652:27): pid=8257 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 49.115261][ T27] audit: type=1800 audit(1578452924.782:28): pid=8257 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 49.975384][ T27] audit: type=1800 audit(1578452925.642:29): pid=8257 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 49.994544][ T27] audit: type=1800 audit(1578452925.642:30): pid=8257 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.59' (ECDSA) to the list of known hosts. 2020/01/08 03:08:55 fuzzer started 2020/01/08 03:08:57 dialing manager at 10.128.0.26:35703 2020/01/08 03:08:57 syscalls: 2824 2020/01/08 03:08:57 code coverage: enabled 2020/01/08 03:08:57 comparison tracing: enabled 2020/01/08 03:08:57 extra coverage: enabled 2020/01/08 03:08:57 setuid sandbox: enabled 2020/01/08 03:08:57 namespace sandbox: enabled 2020/01/08 03:08:57 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 03:08:57 fault injection: enabled 2020/01/08 03:08:57 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 03:08:57 net packet injection: enabled 2020/01/08 03:08:57 net device setup: enabled 2020/01/08 03:08:57 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 03:08:57 devlink PCI setup: PCI device 0000:00:10.0 is not available 03:08:58 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) r3 = dup2(r2, r1) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newlink={0x40, 0x10, 0xe3b, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xa, 0x6}, @IFLA_LINKINFO={0x18, 0x12, @ip6ip6={{0x14, 0x1, 'ip6tnl\x00'}, {0x8, 0x2, [@tunl6_policy=[@tunl_policy=[@IFLA_IPTUN_COLLECT_METADATA={0x4}]]]}}}]}, 0x40}}, 0x0) 03:08:58 executing program 1: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000a00)=@newsa={0xf0, 0x10, 0x40d, 0x0, 0x0, {{@in=@empty, @in6=@mcast1, 0x0, 0x0, 0x0, 0x0, 0x7041cb5a195a173e}, {@in=@multicast2}, @in=@remote, {}, {}, {}, 0x0, 0x0, 0xa}}, 0xf0}}, 0x0) syzkaller login: [ 62.871367][ T8422] IPVS: ftp: loaded support on port[0] = 21 [ 63.008476][ T8422] chnl_net:caif_netlink_parms(): no params data found [ 63.047751][ T8422] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.055394][ T8422] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.063372][ T8422] device bridge_slave_0 entered promiscuous mode [ 63.073327][ T8422] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.080496][ T8422] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.088416][ T8422] device bridge_slave_1 entered promiscuous mode [ 63.108417][ T8422] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.120448][ T8422] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.144750][ T8422] team0: Port device team_slave_0 added [ 63.152384][ T8422] team0: Port device team_slave_1 added 03:08:58 executing program 2: r0 = openat$uinput(0xffffffffffffff9c, &(0x7f0000000040)='/dev/uinput\x00', 0x200000000801, 0x0) ioctl$UI_SET_ABSBIT(r0, 0x40045567, 0x0) ioctl$UI_SET_EVBIT(r0, 0x40045564, 0x3) write$uinput_user_dev(r0, &(0x7f0000000c80)={'syz1\x00', {}, 0x0, [], [], [0x6]}, 0x45c) ioctl$UI_DEV_CREATE(r0, 0x5501) write$uinput_user_dev(r0, &(0x7f00000000c0)={'syz1\x00', {}, 0x0, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0xfffffffd]}, 0x45c) [ 63.166157][ T8425] IPVS: ftp: loaded support on port[0] = 21 [ 63.206599][ T8422] device hsr_slave_0 entered promiscuous mode [ 63.244027][ T8422] device hsr_slave_1 entered promiscuous mode 03:08:59 executing program 3: r0 = openat$fb0(0xffffffffffffff9c, &(0x7f00000004c0)='/dev/fb0\x00', 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 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) ioctl$EXT4_IOC_SETFLAGS(0xffffffffffffffff, 0x40086602, 0x0) ioctl$EVIOCGSW(0xffffffffffffffff, 0x8040451b, 0x0) ioctl$sock_inet_SIOCDARP(0xffffffffffffffff, 0x8953, 0x0) ioctl$USBDEVFS_SETCONFIGURATION(r0, 0x4606, &(0x7f0000000000)) [ 63.411217][ T8427] IPVS: ftp: loaded support on port[0] = 21 [ 63.527535][ T8422] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.576831][ T8422] netdevsim netdevsim0 netdevsim1: renamed from eth1 03:08:59 executing program 4: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 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, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) clock_gettime(0x0, 0x0) r0 = socket$kcm(0xa, 0x6, 0x0) r1 = fcntl$dupfd(0xffffffffffffffff, 0x0, 0xffffffffffffffff) setsockopt$sock_attach_bpf(r0, 0x10d, 0xb, &(0x7f0000000080)=r1, 0x4) [ 63.671437][ T8425] chnl_net:caif_netlink_parms(): no params data found [ 63.701522][ T8422] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.785424][ T8422] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.859253][ T8430] IPVS: ftp: loaded support on port[0] = 21 [ 63.883384][ T8422] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.883480][ T8432] IPVS: ftp: loaded support on port[0] = 21 [ 63.890531][ T8422] bridge0: port 2(bridge_slave_1) entered forwarding state 03:08:59 executing program 5: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000440)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000100)=[@textreal={0x8, &(0x7f0000000080)="f2a6bad004b00fee0f090f3036f30f1a970000660f3806581e0f08bad004b0beeef30f2af8baa100b000ee", 0x1c}], 0x1, 0x0, 0x0, 0x0) r2 = add_key(&(0x7f00000000c0)='cifs.spnego\x00', &(0x7f0000000140)={'syz', 0x0}, 0x0, 0x0, 0xfffffffffffffffc) keyctl$KEYCTL_PKEY_DECRYPT(0x1a, &(0x7f0000000180)={r2, 0xda, 0x44}, &(0x7f00000001c0)={'enc=', 'oaep', ' hash=', {'sha256-ni\x00'}}, &(0x7f0000000240)="610935119c4217727cfedf5904d2d927616f58b53f6dff2a1a15666602d0efd990e93b344f2530eb4f8ada6e6792d591a78416d5a1d6ceff694678dc0b673a7495f2b29e70969fa5ff4efca94c2b1b1fdf2a306246273fda7d5f1bc68687fb95cf0dc9b4511cecae94bca512b38ebf91ccd2606b4c8389a41bc070ac3b272af69fbac30d139e1b324383cbafc5fb1cbad25ad17ec7b20c9ce8262bc3507a894f049b397fad0c50f2b0dc89ba1ae0d348c619340e12fb8d42319e05d7358ada8da51449d973d12f91ee0e5beffc36b76a61b6b685276996354e65", &(0x7f0000000480)=""/68) ioctl$KVM_CREATE_IRQCHIP(r1, 0xae60) r3 = open(0x0, 0x0, 0x0) mmap(&(0x7f0000003000/0x4000)=nil, 0x4000, 0xa, 0x1012, 0xffffffffffffffff, 0xfffff000) getsockname(r3, &(0x7f0000000500)=@pppol2tp={0x18, 0x1, {0x0, 0xffffffffffffffff, {0x2, 0x0, @dev}}}, &(0x7f0000000340)=0x80) syz_genetlink_get_family_id$tipc2(&(0x7f0000000080)='TIPCv2\x00') r4 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000bf7000)={0x0, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) bind$netlink(0xffffffffffffffff, &(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000000041}, 0xc) ioctl$KVM_SET_REGS(r4, 0x4090ae82, &(0x7f0000000380)={[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4cc], 0x100000}) ioctl$KVM_RUN(r4, 0xae80, 0x0) [ 63.904190][ T8422] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.911238][ T8422] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.024904][ T8425] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.031971][ T8425] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.040142][ T8425] device bridge_slave_0 entered promiscuous mode [ 64.065322][ T8427] chnl_net:caif_netlink_parms(): no params data found [ 64.088097][ T2688] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.098064][ T2688] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.115580][ T8425] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.122631][ T8425] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.130392][ T8425] device bridge_slave_1 entered promiscuous mode [ 64.150150][ T8425] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.162709][ T8425] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.183830][ T8435] IPVS: ftp: loaded support on port[0] = 21 [ 64.220418][ T8425] team0: Port device team_slave_0 added [ 64.229072][ T8425] team0: Port device team_slave_1 added [ 64.258015][ T8422] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.269360][ T8427] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.276635][ T8427] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.284507][ T8427] device bridge_slave_0 entered promiscuous mode [ 64.293691][ T8427] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.300731][ T8427] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.308636][ T8427] device bridge_slave_1 entered promiscuous mode [ 64.366218][ T8425] device hsr_slave_0 entered promiscuous mode [ 64.413720][ T8425] device hsr_slave_1 entered promiscuous mode [ 64.483055][ T8425] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 64.490733][ T8425] Cannot create hsr debugfs directory [ 64.526337][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.534951][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.553748][ T8422] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.578293][ T8427] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.603616][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.612591][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.621225][ T2675] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.628455][ T2675] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.637312][ T8427] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.654858][ T8430] chnl_net:caif_netlink_parms(): no params data found [ 64.694637][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.705546][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.714233][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.721315][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.739178][ T8427] team0: Port device team_slave_0 added [ 64.756868][ T8432] chnl_net:caif_netlink_parms(): no params data found [ 64.776400][ T8427] team0: Port device team_slave_1 added [ 64.818943][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.835308][ T8430] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.842493][ T8430] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.852143][ T8430] device bridge_slave_0 entered promiscuous mode [ 64.862277][ T8430] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.869416][ T8430] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.877648][ T8430] device bridge_slave_1 entered promiscuous mode [ 64.894563][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.911657][ T8422] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 64.922858][ T8422] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.976667][ T8430] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.986584][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.997348][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.005893][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.014277][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.022469][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.030967][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.039977][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.048266][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.105553][ T8427] device hsr_slave_0 entered promiscuous mode [ 65.133295][ T8427] device hsr_slave_1 entered promiscuous mode [ 65.173075][ T8427] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.180652][ T8427] Cannot create hsr debugfs directory [ 65.201145][ T8432] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.209352][ T8432] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.217174][ T8432] device bridge_slave_0 entered promiscuous mode [ 65.227057][ T8432] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.234722][ T8432] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.242258][ T8432] device bridge_slave_1 entered promiscuous mode [ 65.258991][ T8430] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.269425][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.277535][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.329912][ T8430] team0: Port device team_slave_0 added [ 65.337655][ T8435] chnl_net:caif_netlink_parms(): no params data found [ 65.350579][ T8432] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.367476][ T8432] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.380079][ T8430] team0: Port device team_slave_1 added [ 65.391752][ T8425] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 65.445246][ T8425] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 65.479684][ T8425] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 65.552491][ T8425] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 65.629103][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.636987][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.674864][ T8430] device hsr_slave_0 entered promiscuous mode [ 65.713298][ T8430] device hsr_slave_1 entered promiscuous mode [ 65.753490][ T8430] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.761079][ T8430] Cannot create hsr debugfs directory [ 65.768697][ T8432] team0: Port device team_slave_0 added [ 65.778500][ T8432] team0: Port device team_slave_1 added [ 65.793798][ T8427] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 65.838303][ T8422] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.879848][ T8427] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 65.938709][ T8427] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 65.995370][ T8427] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 66.087611][ T8432] device hsr_slave_0 entered promiscuous mode [ 66.133640][ T8432] device hsr_slave_1 entered promiscuous mode [ 66.183359][ T8432] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.190944][ T8432] Cannot create hsr debugfs directory [ 66.214681][ T8435] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.221760][ T8435] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.230314][ T8435] device bridge_slave_0 entered promiscuous mode [ 66.238979][ T8435] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.246482][ T8435] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.254477][ T8435] device bridge_slave_1 entered promiscuous mode [ 66.325123][ T8435] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.338023][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.347259][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.356412][ T8430] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 66.415373][ T8430] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 66.448450][ T8435] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.472114][ T8435] team0: Port device team_slave_0 added [ 66.486253][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.496511][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.505573][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.513355][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.524169][ T8430] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 66.577882][ T8422] device veth0_vlan entered promiscuous mode [ 66.586455][ T8435] team0: Port device team_slave_1 added [ 66.596250][ T8430] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 66.678245][ T8422] device veth1_vlan entered promiscuous mode [ 66.726114][ T8435] device hsr_slave_0 entered promiscuous mode [ 66.774170][ T8435] device hsr_slave_1 entered promiscuous mode [ 66.823153][ T8435] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.830760][ T8435] Cannot create hsr debugfs directory [ 66.862283][ T8425] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.893037][ T8432] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 66.945636][ T8432] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 66.987945][ T8427] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.007180][ T8432] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 67.046432][ T8432] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 67.120259][ T8425] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.138861][ T8427] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.155664][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.171603][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 172.182910][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 172.189929][ C1] rcu: 1-...!: (10499 ticks this GP) idle=4ca/1/0x4000000000000002 softirq=11902/11902 fqs=41 [ 172.200565][ C1] (t=10500 jiffies g=6593 q=74) [ 172.205498][ C1] rcu: rcu_preempt kthread starved for 10417 jiffies! g6593 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 172.216581][ C1] rcu: RCU grace-period kthread stack dump: [ 172.222456][ C1] rcu_preempt R running task 29104 10 2 0x80004000 [ 172.230344][ C1] Call Trace: [ 172.233632][ C1] __schedule+0x9a0/0xcc0 [ 172.237960][ C1] schedule+0x181/0x210 [ 172.242109][ C1] schedule_timeout+0x14f/0x240 [ 172.246947][ C1] ? run_local_timers+0x120/0x120 [ 172.251967][ C1] rcu_gp_kthread+0xed8/0x1770 [ 172.256732][ C1] kthread+0x332/0x350 [ 172.260787][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 172.265888][ C1] ? kthread_blkcg+0xe0/0xe0 [ 172.270466][ C1] ret_from_fork+0x24/0x30 [ 172.274880][ C1] NMI backtrace for cpu 1 [ 172.279201][ C1] CPU: 1 PID: 4115 Comm: udevd Not tainted 5.5.0-rc5-syzkaller #0 [ 172.287006][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 172.297064][ C1] Call Trace: [ 172.300343][ C1] [ 172.303193][ C1] dump_stack+0x1fb/0x318 [ 172.307515][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 172.312360][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 172.318502][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 172.324556][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 172.330528][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 172.336413][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 172.341517][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 172.346709][ C1] ? trace_hardirqs_off+0x74/0x80 [ 172.351736][ C1] update_process_times+0x12d/0x180 [ 172.356923][ C1] tick_sched_timer+0x263/0x420 [ 172.361760][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 172.367297][ C1] __hrtimer_run_queues+0x403/0x840 [ 172.372497][ C1] hrtimer_interrupt+0x38c/0xda0 [ 172.377523][ C1] ? debug_smp_processor_id+0x9/0x20 [ 172.382830][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 172.388382][ C1] apic_timer_interrupt+0xf/0x20 [ 172.393317][ C1] [ 172.396252][ C1] RIP: 0010:free_thread_stack+0x124/0x590 [ 172.401963][ C1] Code: ff 48 c1 e8 06 48 83 e0 c0 48 bf 00 00 00 00 00 ea ff ff 48 01 c7 be 03 00 00 00 e8 86 91 61 00 e9 5d 04 00 00 e8 3c 2c 2e 00 <48> 89 df 31 f6 e8 02 8d 6f 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 73 [ 172.421556][ C1] RSP: 0018:ffffc90001277b10 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 172.429955][ C1] RAX: ffffffff81489244 RBX: ffffea00023a5cc0 RCX: ffff88809475c1c0 [ 172.437915][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00023a5cc0 [ 172.445877][ C1] RBP: ffffc90001277b48 R08: 000000000003a728 R09: ffffed10122056a9 [ 172.453838][ C1] R10: ffffed10122056a9 R11: 0000000000000000 R12: ffff8880a8814520 [ 172.461970][ C1] R13: dffffc0000000000 R14: 1ffff110151028a4 R15: ffff88809102b538 [ 172.469946][ C1] ? free_thread_stack+0x124/0x590 [ 172.475056][ C1] put_task_stack+0xa3/0x130 [ 172.479633][ C1] finish_task_switch+0x3f1/0x550 [ 172.484655][ C1] __schedule+0x9a8/0xcc0 [ 172.488981][ C1] schedule+0x181/0x210 [ 172.493130][ C1] schedule_hrtimeout_range_clock+0x108/0x510 [ 172.499190][ C1] ? _raw_spin_unlock_irq+0x22/0x80 [ 172.504381][ C1] schedule_hrtimeout_range+0x2a/0x40 [ 172.509744][ C1] ep_poll+0xa4d/0xe80 [ 172.513816][ C1] ? debug_smp_processor_id+0x1c/0x20 [ 172.519176][ C1] ? do_task_dead+0xc0/0xc0 [ 172.523672][ C1] do_epoll_wait+0x1ee/0x260 [ 172.528255][ C1] __x64_sys_epoll_wait+0x9a/0xb0 [ 172.533456][ C1] do_syscall_64+0xf7/0x1c0 [ 172.537951][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 172.543830][ C1] RIP: 0033:0x7ff5f242b943 [ 172.548250][ C1] 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 [ 172.567851][ C1] RSP: 002b:00007fff792de7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [ 172.576268][ C1] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007ff5f242b943 [ 172.584243][ C1] RDX: 0000000000000008 RSI: 00007fff792de8c0 RDI: 000000000000000a [ 172.592223][ C1] RBP: 0000000000000000 R08: 0000000001cac0d0 R09: 00007ff5f24751d0 [ 172.600209][ C1] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000003 [ 172.608178][ C1] R13: 0000000000000010 R14: 0000000001cc5180 R15: 0000000001cac250