[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.72' (ECDSA) to the list of known hosts. 2020/07/01 14:08:22 fuzzer started 2020/07/01 14:08:22 dialing manager at 10.128.0.105:36825 2020/07/01 14:08:23 syscalls: 3106 2020/07/01 14:08:23 code coverage: enabled 2020/07/01 14:08:23 comparison tracing: enabled 2020/07/01 14:08:23 extra coverage: enabled 2020/07/01 14:08:23 setuid sandbox: enabled 2020/07/01 14:08:23 namespace sandbox: enabled 2020/07/01 14:08:23 Android sandbox: /sys/fs/selinux/policy does not exist 2020/07/01 14:08:23 fault injection: enabled 2020/07/01 14:08:23 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/07/01 14:08:23 net packet injection: enabled 2020/07/01 14:08:23 net device setup: enabled 2020/07/01 14:08:23 concurrency sanitizer: enabled 2020/07/01 14:08:23 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/07/01 14:08:23 USB emulation: enabled 2020/07/01 14:08:24 suppressing KCSAN reports in functions: 'blk_mq_dispatch_rq_list' '__xa_clear_mark' 'ext4_mark_iloc_dirty' 'dd_has_work' 'exit_mm' 'ext4_free_inodes_count' '__ext4_new_inode' 'do_signal_stop' 'generic_file_buffered_read' 'pcpu_alloc' 'futex_wait_queue_me' 'ext4_setattr' 'ext4_free_inode' 'do_nanosleep' 'do_epoll_wait' 'alloc_pid' 14:08:40 executing program 0: clone(0x20002004ffc, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) exit_group(0x0) wait4(0xffffffffffffffff, &(0x7f0000000000), 0xa000000a, 0x0) syzkaller login: [ 48.863567][ T8650] IPVS: ftp: loaded support on port[0] = 21 [ 48.915615][ T8650] chnl_net:caif_netlink_parms(): no params data found [ 48.951740][ T8650] bridge0: port 1(bridge_slave_0) entered blocking state 14:08:40 executing program 1: openat$procfs(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sysvipc/shm\x00', 0x0, 0x0) recvmmsg(0xffffffffffffffff, &(0x7f0000001e40)=[{{&(0x7f0000000100)=@rxrpc=@in6={0x21, 0x0, 0x2, 0x1c, {0xa, 0x0, 0x0, @local}}, 0x80, 0x0, 0x0, &(0x7f0000001500)=""/117, 0x75}}], 0x1, 0x0, 0x0) r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='fd/3\x00') preadv(r0, &(0x7f00000017c0), 0x3da, 0x0) [ 48.959188][ T8650] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.966615][ T8650] device bridge_slave_0 entered promiscuous mode [ 48.975046][ T8650] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.984438][ T8650] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.992452][ T8650] device bridge_slave_1 entered promiscuous mode [ 49.006492][ T8650] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 49.017405][ T8650] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 49.034174][ T8650] team0: Port device team_slave_0 added [ 49.041028][ T8650] team0: Port device team_slave_1 added [ 49.053613][ T8650] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 49.060813][ T8650] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 49.087523][ T8650] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 49.099982][ T8650] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 49.106916][ T8650] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 49.140223][ T8650] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 49.155543][ T8804] IPVS: ftp: loaded support on port[0] = 21 14:08:41 executing program 2: r0 = socket$inet(0x2, 0x2000080001, 0x84) bind$inet(r0, &(0x7f0000000080)={0x2, 0x4e20, @empty}, 0x10) connect$inet(r0, &(0x7f00000000c0)={0x2, 0x0, @private=0xa010102}, 0x10) sendmsg(r0, &(0x7f000001afc8)={&(0x7f0000000000)=@in={0x2, 0x4e20, @loopback}, 0x80, &(0x7f0000007f80)=[{&(0x7f00000001c0)='*', 0x1}], 0x1}, 0x0) setsockopt$inet_sctp_SCTP_PRIMARY_ADDR(r0, 0x84, 0x6, &(0x7f00000001c0)={0x0, @in={{0x2, 0x4e20, @local}}}, 0x84) [ 49.198824][ T8650] device hsr_slave_0 entered promiscuous mode [ 49.247848][ T8650] device hsr_slave_1 entered promiscuous mode [ 49.332772][ T8820] IPVS: ftp: loaded support on port[0] = 21 14:08:41 executing program 3: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$ipvs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/net/ipv4/vs/sync_qlen_max\x00', 0x2, 0x0) sendfile(r2, r2, 0x0, 0x401) [ 49.461291][ T8804] chnl_net:caif_netlink_parms(): no params data found [ 49.492002][ T8650] netdevsim netdevsim0 netdevsim0: renamed from eth0 14:08:41 executing program 4: r0 = socket$kcm(0x2, 0x1000000000000002, 0x0) sendmsg$inet(r0, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24}, 0x10, 0x0, 0x0, &(0x7f0000007880)=[@ip_retopts={{0x14, 0x0, 0x7, {[@ra={0x94, 0x2}]}}}], 0x18, 0xa8980000}, 0x0) [ 49.569445][ T8650] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 49.631207][ T9023] IPVS: ftp: loaded support on port[0] = 21 [ 49.661727][ T8820] chnl_net:caif_netlink_parms(): no params data found [ 49.674295][ T8650] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.721229][ T8650] netdevsim netdevsim0 netdevsim3: renamed from eth3 14:08:41 executing program 5: r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000000100)={0x26, 'skcipher\x00', 0x0, 0x0, 'ecb(cipher_null)\x00'}, 0x58) r1 = accept4$alg(r0, 0x0, 0x0, 0x0) io_setup(0xff, &(0x7f0000000380)=0x0) io_submit(r2, 0x27f, &(0x7f0000001440)=[&(0x7f0000000200)={0x1000000, 0x0, 0x700000000000000, 0x0, 0x0, r1, &(0x7f0000000340), 0xfdef}]) [ 49.766967][ T8650] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.774044][ T8650] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.781296][ T8650] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.788411][ T8650] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.807009][ T8804] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.816585][ T8804] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.824785][ T8804] device bridge_slave_0 entered promiscuous mode [ 49.856393][ T9078] IPVS: ftp: loaded support on port[0] = 21 [ 49.867873][ T8804] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.875019][ T8804] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.888019][ T8804] device bridge_slave_1 entered promiscuous mode [ 49.915648][ T8804] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 49.926916][ T8804] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 49.936493][ T8820] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.943967][ T8820] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.951653][ T8820] device bridge_slave_0 entered promiscuous mode [ 49.960151][ T8820] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.967231][ T8820] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.974720][ T8820] device bridge_slave_1 entered promiscuous mode [ 49.993693][ T9126] IPVS: ftp: loaded support on port[0] = 21 [ 50.008728][ T8330] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.016363][ T8330] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.026407][ T8820] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 50.044987][ T8820] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.077230][ T8820] team0: Port device team_slave_0 added [ 50.083389][ T8804] team0: Port device team_slave_0 added [ 50.110004][ T8820] team0: Port device team_slave_1 added [ 50.120042][ T8804] team0: Port device team_slave_1 added [ 50.166445][ T9078] chnl_net:caif_netlink_parms(): no params data found [ 50.181426][ T8820] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 50.188490][ T8820] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 50.214710][ T8820] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 50.231713][ T9023] chnl_net:caif_netlink_parms(): no params data found [ 50.245370][ T8650] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.252792][ T8804] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 50.260729][ T8804] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 50.287362][ T8804] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 50.301669][ T8804] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 50.309095][ T8804] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 50.335530][ T8804] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 50.350808][ T9126] chnl_net:caif_netlink_parms(): no params data found [ 50.360836][ T8820] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 50.367969][ T8820] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 50.394776][ T8820] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 50.468758][ T8820] device hsr_slave_0 entered promiscuous mode [ 50.517356][ T8820] device hsr_slave_1 entered promiscuous mode [ 50.567243][ T8820] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 50.575230][ T8820] Cannot create hsr debugfs directory [ 50.598110][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.605821][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.633683][ T8650] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.698826][ T8804] device hsr_slave_0 entered promiscuous mode [ 50.767612][ T8804] device hsr_slave_1 entered promiscuous mode [ 50.817221][ T8804] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 50.824793][ T8804] Cannot create hsr debugfs directory [ 50.852035][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.860511][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.868859][ T8330] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.875886][ T8330] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.883469][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.892166][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.900402][ T8330] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.907483][ T8330] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.915417][ T9078] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.923027][ T9078] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.930757][ T9078] device bridge_slave_0 entered promiscuous mode [ 50.959706][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.968284][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.977067][ T9078] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.984803][ T9078] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.992802][ T9078] device bridge_slave_1 entered promiscuous mode [ 51.015140][ T9078] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.038519][ T8650] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 51.048889][ T8650] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 51.066732][ T9126] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.075540][ T9126] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.083272][ T9126] device bridge_slave_0 entered promiscuous mode [ 51.090455][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.100504][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.109157][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.119405][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.128044][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.136309][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.145924][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.154400][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.162878][ T9023] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.170028][ T9023] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.179883][ T9023] device bridge_slave_0 entered promiscuous mode [ 51.188413][ T9078] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.201126][ T8820] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 51.248920][ T8820] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 51.300315][ T9126] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.307804][ T9126] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.315176][ T9126] device bridge_slave_1 entered promiscuous mode [ 51.322469][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.330485][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.338432][ T9023] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.345505][ T9023] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.353163][ T9023] device bridge_slave_1 entered promiscuous mode [ 51.369803][ T9023] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.378986][ T8820] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 51.443818][ T9023] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.453988][ T9078] team0: Port device team_slave_0 added [ 51.462409][ T9078] team0: Port device team_slave_1 added [ 51.468597][ T8820] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 51.535727][ T9078] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 51.544276][ T9078] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 51.571922][ T9078] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 51.583982][ T9126] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.594991][ T9126] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.605954][ T9023] team0: Port device team_slave_0 added [ 51.612987][ T8804] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 51.658980][ T8804] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 51.698617][ T9078] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 51.705916][ T9078] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 51.732386][ T9078] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.752168][ T9126] team0: Port device team_slave_0 added [ 51.758440][ T9023] team0: Port device team_slave_1 added [ 51.764175][ T8804] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 51.809244][ T8804] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 51.849832][ T9126] team0: Port device team_slave_1 added [ 51.864306][ T9126] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 51.871545][ T9126] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 51.898033][ T9126] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 51.921199][ T8650] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.933482][ T9126] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 51.942754][ T9126] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 51.971840][ T9126] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.987107][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.994496][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.020252][ T9023] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.027836][ T9023] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 52.053945][ T9023] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.065594][ T9023] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.072602][ T9023] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 52.098814][ T9023] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.158788][ T9078] device hsr_slave_0 entered promiscuous mode [ 52.197253][ T9078] device hsr_slave_1 entered promiscuous mode [ 52.237115][ T9078] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 52.244664][ T9078] Cannot create hsr debugfs directory [ 52.251174][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 52.259885][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 52.325615][ T8804] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.378421][ T9023] device hsr_slave_0 entered promiscuous mode [ 52.427320][ T9023] device hsr_slave_1 entered promiscuous mode [ 52.467091][ T9023] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 52.474644][ T9023] Cannot create hsr debugfs directory [ 52.528445][ T9126] device hsr_slave_0 entered promiscuous mode [ 52.577416][ T9126] device hsr_slave_1 entered promiscuous mode [ 52.617099][ T9126] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 52.624653][ T9126] Cannot create hsr debugfs directory [ 52.630731][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 52.639068][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 52.647637][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 52.655206][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 52.663103][ T8650] device veth0_vlan entered promiscuous mode [ 52.676612][ T8804] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.704766][ T9078] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 52.738731][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 52.746208][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.758519][ T8820] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.770208][ T9078] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 52.829171][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.837760][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.845918][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.853032][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.862314][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 52.875384][ T8820] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.888878][ T8650] device veth1_vlan entered promiscuous mode [ 52.897626][ T9078] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 52.939453][ T9078] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 52.998642][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 53.006652][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 53.014962][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.022650][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.031494][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.039994][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.047048][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.054687][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.063258][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.071503][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.078540][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.086210][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.096597][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 53.108930][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 53.116824][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.127408][ T8330] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.135490][ T8330] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.142709][ T8330] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.164056][ T25] ================================================================== [ 53.172160][ T25] BUG: KCSAN: data-race in copy_process / copy_process [ 53.178996][ T25] [ 53.180623][ T8804] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 53.181333][ T25] write to 0xffffffff8927a410 of 4 bytes by task 3296 on cpu 1: [ 53.191658][ T8804] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.199240][ T25] copy_process+0x2e84/0x3300 [ 53.199256][ T25] _do_fork+0xf1/0x660 [ 53.218257][ T25] kernel_thread+0x85/0xb0 [ 53.221914][ T8804] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.222665][ T25] call_usermodehelper_exec_work+0x4f/0x1b0 [ 53.235272][ T25] process_one_work+0x3e1/0x9a0 [ 53.240108][ T25] worker_thread+0x665/0xbe0 [ 53.244682][ T25] kthread+0x20d/0x230 [ 53.248734][ T25] ret_from_fork+0x1f/0x30 [ 53.249604][ T8804] device veth0_vlan entered promiscuous mode [ 53.253129][ T25] [ 53.261389][ T25] read to 0xffffffff8927a410 of 4 bytes by task 25 on cpu 0: [ 53.263565][ T8804] device veth1_vlan entered promiscuous mode [ 53.268746][ T25] copy_process+0xac4/0x3300 [ 53.268756][ T25] _do_fork+0xf1/0x660 [ 53.268770][ T25] kernel_thread+0x85/0xb0 [ 53.287719][ T25] call_usermodehelper_exec_work+0x4f/0x1b0 [ 53.288573][ T8804] device veth0_macvtap entered promiscuous mode [ 53.293597][ T25] process_one_work+0x3e1/0x9a0 [ 53.302623][ T8804] device veth1_macvtap entered promiscuous mode [ 53.304666][ T25] worker_thread+0x665/0xbe0 [ 53.315693][ T25] kthread+0x20d/0x230 [ 53.319156][ T8804] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 53.319747][ T25] ret_from_fork+0x1f/0x30 [ 53.329529][ T8804] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.331287][ T25] [ 53.340765][ T25] Reported by Kernel Concurrency Sanitizer on: [ 53.346901][ T25] CPU: 0 PID: 25 Comm: kworker/u4:2 Not tainted 5.8.0-rc3-syzkaller #0 [ 53.355109][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.365256][ T25] Workqueue: events_unbound call_usermodehelper_exec_work [ 53.372350][ T25] ================================================================== [ 53.380396][ T25] Kernel panic - not syncing: panic_on_warn set ... [ 53.387648][ T25] CPU: 0 PID: 25 Comm: kworker/u4:2 Not tainted 5.8.0-rc3-syzkaller #0 [ 53.395863][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.406194][ T25] Workqueue: events_unbound call_usermodehelper_exec_work [ 53.413537][ T25] Call Trace: [ 53.416991][ T25] dump_stack+0x10f/0x19d [ 53.421300][ T25] panic+0x207/0x64a [ 53.425191][ T25] ? vprintk_emit+0x44a/0x4f0 [ 53.429861][ T25] kcsan_report+0x684/0x690 [ 53.434341][ T25] ? kcsan_setup_watchpoint+0x453/0x4d0 [ 53.439945][ T25] ? copy_process+0xac4/0x3300 [ 53.444688][ T25] ? _do_fork+0xf1/0x660 [ 53.448928][ T25] ? kernel_thread+0x85/0xb0 [ 53.453494][ T25] ? call_usermodehelper_exec_work+0x4f/0x1b0 [ 53.459531][ T25] ? process_one_work+0x3e1/0x9a0 [ 53.464538][ T25] ? worker_thread+0x665/0xbe0 [ 53.469275][ T25] ? kthread+0x20d/0x230 [ 53.473493][ T25] ? ret_from_fork+0x1f/0x30 [ 53.478064][ T25] ? debug_smp_processor_id+0x18/0x20 [ 53.483409][ T25] ? copy_creds+0x280/0x350 [ 53.487884][ T25] ? copy_creds+0x280/0x350 [ 53.492359][ T25] kcsan_setup_watchpoint+0x453/0x4d0 [ 53.497715][ T25] ? copy_creds+0x280/0x350 [ 53.502213][ T25] copy_process+0xac4/0x3300 [ 53.506808][ T25] ? select_idle_sibling+0x258/0x430 [ 53.512081][ T25] ? __rcu_read_unlock+0x4b/0x260 [ 53.517087][ T25] ? proc_cap_handler+0x280/0x280 [ 53.522087][ T25] _do_fork+0xf1/0x660 [ 53.526128][ T25] ? enqueue_entity+0x25a/0x480 [ 53.530951][ T25] ? proc_cap_handler+0x280/0x280 [ 53.535961][ T25] kernel_thread+0x85/0xb0 [ 53.540350][ T25] ? proc_cap_handler+0x280/0x280 [ 53.545446][ T25] call_usermodehelper_exec_work+0x4f/0x1b0 [ 53.551309][ T25] process_one_work+0x3e1/0x9a0 [ 53.556135][ T25] worker_thread+0x665/0xbe0 [ 53.560883][ T25] ? finish_task_switch+0x8b/0x270 [ 53.566141][ T25] ? process_one_work+0x9a0/0x9a0 [ 53.571137][ T25] kthread+0x20d/0x230 [ 53.575190][ T25] ? process_one_work+0x9a0/0x9a0 [ 53.580185][ T25] ? kthread_blkcg+0x80/0x80 [ 53.584760][ T25] ret_from_fork+0x1f/0x30 [ 53.590388][ T25] Kernel Offset: disabled [ 53.594702][ T25] Rebooting in 86400 seconds..