[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 52.085031][ T23] audit: type=1800 audit(1578458944.228:25): pid=8289 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 52.104403][ T23] audit: type=1800 audit(1578458944.228:26): pid=8289 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 52.157644][ T23] audit: type=1800 audit(1578458944.238:27): pid=8289 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 '10.128.1.11' (ECDSA) to the list of known hosts. 2020/01/08 04:49:14 fuzzer started 2020/01/08 04:49:16 dialing manager at 10.128.0.26:35703 2020/01/08 04:49:16 syscalls: 2824 2020/01/08 04:49:16 code coverage: enabled 2020/01/08 04:49:16 comparison tracing: enabled 2020/01/08 04:49:16 extra coverage: enabled 2020/01/08 04:49:16 setuid sandbox: enabled 2020/01/08 04:49:16 namespace sandbox: enabled 2020/01/08 04:49:16 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 04:49:16 fault injection: enabled 2020/01/08 04:49:16 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 04:49:16 net packet injection: enabled 2020/01/08 04:49:16 net device setup: enabled 2020/01/08 04:49:16 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 04:49:16 devlink PCI setup: PCI device 0000:00:10.0 is not available 04:49:17 executing program 0: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000380)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) r1 = socket$inet6(0xa, 0x80001, 0x0) setsockopt$inet6_int(r1, 0x29, 0x33, &(0x7f0000000240)=0x40000000003, 0x4) getsockopt$inet6_buf(r1, 0x29, 0x6, &(0x7f0000c86000), &(0x7f0000000000)=0xfffffd62) 04:49:17 executing program 1: pipe(&(0x7f0000000200)) mkdir(&(0x7f0000000040)='./file0\x00', 0x0) mount$bpf(0x0, 0x0, 0x0, 0x0, &(0x7f0000000200)=ANY=[@ANYBLOB='uid=']) mount(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000080)='tmpfs\x00', 0x0, &(0x7f0000000200)) syzkaller login: [ 65.672765][ T8455] IPVS: ftp: loaded support on port[0] = 21 [ 65.854945][ T8455] chnl_net:caif_netlink_parms(): no params data found [ 65.865218][ T8458] IPVS: ftp: loaded support on port[0] = 21 04:49:18 executing program 2: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_GET_NESTED_STATE(r2, 0xc018ae85, &(0x7f0000000440)) [ 65.998261][ T8455] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.011296][ T8455] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.018985][ T8455] device bridge_slave_0 entered promiscuous mode [ 66.048552][ T8458] chnl_net:caif_netlink_parms(): no params data found [ 66.063826][ T8455] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.070909][ T8455] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.092160][ T8455] device bridge_slave_1 entered promiscuous mode [ 66.144191][ T8455] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.158248][ T8461] IPVS: ftp: loaded support on port[0] = 21 [ 66.194024][ T8455] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.222370][ T8458] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.229639][ T8458] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.237527][ T8458] device bridge_slave_0 entered promiscuous mode 04:49:18 executing program 3: socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000001840)={0xffffffffffffffff}) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) syz_read_part_table(0x0, 0xaaaaaaaaaaaac47, &(0x7f0000000080)=[{&(0x7f0000000000)="0201a9ffffff0a000000ff07000000ffffffbf000800000000000000004000ffffffa6000000e1000000887700720030b5829237c30000000000008000da55aa", 0x40, 0x1c0}]) [ 66.268289][ T8458] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.276497][ T8458] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.286206][ T8458] device bridge_slave_1 entered promiscuous mode [ 66.298246][ T8455] team0: Port device team_slave_0 added [ 66.323663][ T8455] team0: Port device team_slave_1 added [ 66.376147][ T8458] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.434178][ T8455] device hsr_slave_0 entered promiscuous mode 04:49:18 executing program 4: r0 = syz_init_net_socket$ax25(0x3, 0x5, 0x0) ioctl$SIOCAX25ADDUID(r0, 0x89e2, &(0x7f0000000000)={0x3, @bcast}) [ 66.571611][ T8455] device hsr_slave_1 entered promiscuous mode [ 66.647636][ T8458] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.694828][ T8464] IPVS: ftp: loaded support on port[0] = 21 [ 66.716514][ T8461] chnl_net:caif_netlink_parms(): no params data found [ 66.757401][ T8458] team0: Port device team_slave_0 added [ 66.782958][ T8458] team0: Port device team_slave_1 added 04:49:19 executing program 5: r0 = openat$ttynull(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttynull\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000000)=0x7) [ 66.906436][ T8458] device hsr_slave_0 entered promiscuous mode [ 66.962521][ T8458] device hsr_slave_1 entered promiscuous mode [ 67.001315][ T8458] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.009111][ T8458] Cannot create hsr debugfs directory [ 67.053241][ T8461] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.060308][ T8461] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.070799][ T8461] device bridge_slave_0 entered promiscuous mode [ 67.079326][ T8461] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.086685][ T8461] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.094358][ T8461] device bridge_slave_1 entered promiscuous mode [ 67.123929][ T8455] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.124274][ T8469] IPVS: ftp: loaded support on port[0] = 21 [ 67.183611][ T8455] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.237701][ T8455] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.296235][ T8466] IPVS: ftp: loaded support on port[0] = 21 [ 67.308282][ T8455] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.380859][ T8461] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.402048][ T8461] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.470022][ T8458] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 67.541318][ T8461] team0: Port device team_slave_0 added [ 67.548803][ T8461] team0: Port device team_slave_1 added [ 67.559928][ T8458] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 67.629782][ T8458] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 67.773021][ T8461] device hsr_slave_0 entered promiscuous mode [ 67.821727][ T8461] device hsr_slave_1 entered promiscuous mode [ 67.862070][ T8461] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.869643][ T8461] Cannot create hsr debugfs directory [ 67.896460][ T8458] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 67.957355][ T8464] chnl_net:caif_netlink_parms(): no params data found [ 68.065218][ T8464] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.072784][ T8464] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.080399][ T8464] device bridge_slave_0 entered promiscuous mode [ 68.089831][ T8464] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.097069][ T8464] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.105103][ T8464] device bridge_slave_1 entered promiscuous mode [ 68.112337][ T8469] chnl_net:caif_netlink_parms(): no params data found [ 68.165650][ T8464] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.198327][ T8466] chnl_net:caif_netlink_parms(): no params data found [ 68.216343][ T8464] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.255760][ T8455] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.270199][ T8461] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 68.341868][ T8469] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.348926][ T8469] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.357422][ T8469] device bridge_slave_0 entered promiscuous mode [ 68.364961][ T8461] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 68.433683][ T8461] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 68.485186][ T8464] team0: Port device team_slave_0 added [ 68.491079][ T8461] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 68.546319][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.555116][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.564770][ T8455] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.576371][ T8469] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.584292][ T8469] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.592325][ T8469] device bridge_slave_1 entered promiscuous mode [ 68.602174][ T8464] team0: Port device team_slave_1 added [ 68.639107][ T8466] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.646849][ T8466] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.656103][ T8466] device bridge_slave_0 entered promiscuous mode [ 68.671195][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.679932][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.688456][ T2738] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.695660][ T2738] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.704208][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.723215][ T8469] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.732782][ T8466] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.739821][ T8466] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.747849][ T8466] device bridge_slave_1 entered promiscuous mode [ 68.813434][ T8464] device hsr_slave_0 entered promiscuous mode [ 68.861589][ T8464] device hsr_slave_1 entered promiscuous mode [ 68.901234][ T8464] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.908857][ T8464] Cannot create hsr debugfs directory [ 68.918025][ T8458] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.926459][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.935150][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.943725][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.950763][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.959675][ T8469] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.985107][ T8466] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.030988][ T8466] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.041790][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.061392][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.062040][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.079043][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.087666][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.096282][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.107579][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.118205][ T8469] team0: Port device team_slave_0 added [ 69.142491][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.150655][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.162821][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.170981][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.191383][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.199144][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.210411][ T8469] team0: Port device team_slave_1 added [ 69.220295][ T8455] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.230417][ T8466] team0: Port device team_slave_0 added [ 69.240378][ T8466] team0: Port device team_slave_1 added [ 69.247753][ T8458] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.275538][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.285528][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.294014][ T2695] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.301057][ T2695] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.308781][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.317853][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.326239][ T2695] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.333309][ T2695] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.341759][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.403554][ T8469] device hsr_slave_0 entered promiscuous mode [ 69.441594][ T8469] device hsr_slave_1 entered promiscuous mode [ 69.481535][ T8469] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.489082][ T8469] Cannot create hsr debugfs directory [ 69.498827][ T8461] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.564937][ T8466] device hsr_slave_0 entered promiscuous mode [ 69.614517][ T8466] device hsr_slave_1 entered promiscuous mode [ 69.641295][ T8466] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.648865][ T8466] Cannot create hsr debugfs directory [ 69.664944][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.673641][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.697830][ T8464] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 69.733591][ T8464] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 69.783800][ T8464] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 69.815599][ T8464] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 69.877835][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.885870][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.893656][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.902411][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.914775][ T8455] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.937394][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.960958][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.971598][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.979848][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.987712][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.000564][ T8458] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 70.011810][ T8458] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 70.024691][ T8461] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.043223][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.053430][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.061873][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.070140][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.078654][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.135423][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.145021][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.154637][ T2695] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.161731][ T2695] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.169313][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.178429][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.185980][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.194832][ T2695] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.217250][ T8458] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.235771][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.245390][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.254436][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.263311][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.270366][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.281499][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.326612][ T8469] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 70.368191][ T8455] device veth0_vlan entered promiscuous mode [ 70.375178][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.384420][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.393689][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.402788][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.410845][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.419745][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.427627][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.435344][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.460941][ T8469] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 70.519677][ T8455] device veth1_vlan entered promiscuous mode [ 70.532641][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.540660][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.553316][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.563720][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.572730][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.580830][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.590225][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.607654][ T8461] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 70.619800][ T8461] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.628355][ T8469] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 70.693718][ T8466] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 70.734156][ T8466] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 70.773722][ T8466] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 70.827373][ T8466] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 70.873703][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.882053][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.905114][ T8464] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.912593][ T8469] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 70.951369][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.959488][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.968453][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.976519][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.991221][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.999149][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.012231][ T3087] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.027648][ T8464] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.061989][ T8458] device veth0_vlan entered promiscuous mode [ 71.076539][ T8461] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.083995][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.091831][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.108419][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.117053][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.125879][ T2738] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.132973][ T2738] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.142046][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.150511][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.158890][ T2738] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.165942][ T2738] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.175241][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.221675][ T3198] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 71.240508][ T8458] device veth1_vlan entered promiscuous mode [ 71.283641][ T8461] device veth0_vlan entered promiscuous mode [ 71.301120][ T8461] device veth1_vlan entered promiscuous mode [ 176.251127][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 176.257906][ C0] rcu: 0-...!: (10499 ticks this GP) idle=cfa/1/0x4000000000000002 softirq=14270/14270 fqs=41 [ 176.268494][ C0] (t=10500 jiffies g=6873 q=380) [ 176.273524][ C0] rcu: rcu_preempt kthread starved for 10418 jiffies! g6873 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 176.284794][ C0] rcu: RCU grace-period kthread stack dump: [ 176.290678][ C0] rcu_preempt R running task 28984 10 2 0x80004000 [ 176.298584][ C0] Call Trace: [ 176.301879][ C0] __schedule+0x9a0/0xcc0 [ 176.306210][ C0] schedule+0x181/0x210 [ 176.310357][ C0] schedule_timeout+0x14f/0x240 [ 176.315202][ C0] ? run_local_timers+0x120/0x120 [ 176.320223][ C0] rcu_gp_kthread+0xed8/0x1770 [ 176.324984][ C0] kthread+0x332/0x350 [ 176.329039][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 176.334142][ C0] ? kthread_blkcg+0xe0/0xe0 [ 176.338721][ C0] ret_from_fork+0x24/0x30 [ 176.343139][ C0] NMI backtrace for cpu 0 [ 176.347458][ C0] CPU: 0 PID: 8425 Comm: udevd Not tainted 5.5.0-rc5-syzkaller #0 [ 176.355383][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 176.365439][ C0] Call Trace: [ 176.368719][ C0] [ 176.371570][ C0] dump_stack+0x1fb/0x318 [ 176.375906][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 176.380748][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 176.386894][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 176.392951][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 176.398925][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 176.404811][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 176.409921][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 176.415114][ C0] ? trace_hardirqs_off+0x74/0x80 [ 176.420126][ C0] update_process_times+0x12d/0x180 [ 176.425316][ C0] tick_sched_timer+0x263/0x420 [ 176.430154][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 176.435687][ C0] __hrtimer_run_queues+0x403/0x840 [ 176.440908][ C0] hrtimer_interrupt+0x38c/0xda0 [ 176.445862][ C0] ? debug_smp_processor_id+0x9/0x20 [ 176.451140][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 176.456679][ C0] apic_timer_interrupt+0xf/0x20 [ 176.461604][ C0] [ 176.464536][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x14/0x50 [ 176.470681][ C0] Code: 00 00 00 48 8b 3d f4 f4 ed 07 48 89 de e8 84 f4 3b 00 5b 5d c3 cc 48 8b 04 24 65 48 8b 0c 25 c0 1d 02 00 65 8b 15 38 5f 8b 7e c2 00 01 1f 00 75 2c 8b 91 80 13 00 00 83 fa 02 75 21 48 8b 91 [ 176.490273][ C0] RSP: 0018:ffffc90001d67ad8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 176.498677][ C0] RAX: ffffffff814897d3 RBX: 0000000000000000 RCX: ffff888090910280 [ 176.506638][ C0] RDX: 0000000000000001 RSI: 00000000fffffffc RDI: ffffea0002463cc0 [ 176.514600][ C0] RBP: ffffc90001d67b00 R08: 000000000003a728 R09: fffffbfff124248a [ 176.522557][ C0] R10: fffffbfff124248a R11: 0000000000000000 R12: dffffc0000000000 [ 176.530514][ C0] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff888096fc5638 [ 176.538488][ C0] ? mod_memcg_page_state+0x123/0x190 [ 176.543854][ C0] ? free_thread_stack+0x124/0x590 [ 176.548953][ C0] ? mod_memcg_page_state+0x123/0x190 [ 176.554316][ C0] free_thread_stack+0x168/0x590 [ 176.559245][ C0] put_task_stack+0xa3/0x130 [ 176.563825][ C0] finish_task_switch+0x3f1/0x550 [ 176.569007][ C0] __schedule+0x9a8/0xcc0 [ 176.573420][ C0] schedule+0x181/0x210 [ 176.577565][ C0] schedule_hrtimeout_range_clock+0x3c7/0x510 [ 176.583624][ C0] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 176.589422][ C0] schedule_hrtimeout_range+0x2a/0x40 [ 176.594786][ C0] ep_poll+0xa4d/0xe80 [ 176.598858][ C0] ? do_task_dead+0xc0/0xc0 [ 176.603351][ C0] ? __kasan_check_read+0x11/0x20 [ 176.608376][ C0] do_epoll_wait+0x1ee/0x260 [ 176.612965][ C0] __x64_sys_epoll_wait+0x9a/0xb0 [ 176.617982][ C0] do_syscall_64+0xf7/0x1c0 [ 176.622476][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 176.628354][ C0] RIP: 0033:0x7f9bc74e1943 [ 176.632784][ 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 [ 176.652385][ C0] RSP: 002b:00007ffd22e72a48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [ 176.660780][ C0] RAX: ffffffffffffffda RBX: 00000000013bf250 RCX: 00007f9bc74e1943 [ 176.668736][ C0] RDX: 0000000000000004 RSI: 00007ffd22e72b10 RDI: 0000000000000007 [ 176.676693][ C0] RBP: 0000000000625500 R08: 00007ffd22e72a30 R09: 00007ffd22f610b8 [ 176.684650][ C0] R10: 000000000000ee42 R11: 0000000000000246 R12: 00000000013c3190 [ 176.692618][ C0] R13: 00007ffd22e73b67 R14: 0000000000000005 R15: 00000000013bf250