[ 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 '10.128.0.151' (ECDSA) to the list of known hosts. 2020/12/08 13:16:07 fuzzer started 2020/12/08 13:16:08 dialing manager at 10.128.0.105:41375 2020/12/08 13:16:08 syscalls: 3456 2020/12/08 13:16:08 code coverage: enabled 2020/12/08 13:16:08 comparison tracing: enabled 2020/12/08 13:16:08 extra coverage: enabled 2020/12/08 13:16:08 setuid sandbox: enabled 2020/12/08 13:16:08 namespace sandbox: enabled 2020/12/08 13:16:08 Android sandbox: /sys/fs/selinux/policy does not exist 2020/12/08 13:16:08 fault injection: enabled 2020/12/08 13:16:08 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/12/08 13:16:08 net packet injection: enabled 2020/12/08 13:16:08 net device setup: enabled 2020/12/08 13:16:08 concurrency sanitizer: enabled 2020/12/08 13:16:08 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/12/08 13:16:08 USB emulation: enabled 2020/12/08 13:16:08 hci packet injection: enabled 2020/12/08 13:16:08 wifi device emulation: enabled 2020/12/08 13:16:12 suppressing KCSAN reports in functions: 'dd_has_work' 'ext4_mb_regular_allocator' 'n_tty_receive_buf_common' 'wbt_issue' '__ext4_update_other_inode_time' 'snd_rawmidi_poll' 'audit_log_start' 'ext4_handle_inode_extension' '__blk_mq_sched_dispatch_requests' 'find_get_pages_range_tag' 'bpf_lru_pop_free' 'pcpu_alloc' 'step_into' 'ext4_writepages' 'ext4_mark_iloc_dirty' '__mark_inode_dirty' 'futex_wait_queue_me' 'mark_buffer_dirty_inode' 'lbmIODone' 'do_nanosleep' 'blk_mq_sched_dispatch_requests' '__filemap_fdatawrite_range' '__io_cqring_fill_event' '__add_to_page_cache_locked' 'kauditd_thread' '_prb_read_valid' '__xa_clear_mark' 'ext4_free_inode' 'blk_mq_dispatch_rq_list' 'do_select' 'do_sys_poll' 'lru_add_drain_all' '__bpf_lru_list_rotate' 'dput' '__ext4_new_inode' 'ext4_setattr' 'shmem_add_to_page_cache' 'generic_write_end' 'filemap_map_pages' 'expire_timers' 'xas_find_marked' 'do_signal_stop' 'ext4_mb_find_by_goal' 'caching_thread' 'ext4_free_inodes_count' 'alloc_pid' 'ext4_mb_good_group' 'isolate_migratepages_block' '__mod_timer' 'blk_mq_rq_ctx_init' '__delete_from_page_cache' 'tick_nohz_next_event' 'ondemand_readahead' 'kvm_mmu_notifier_invalidate_range_end' 'generic_file_buffered_read' 13:19:10 executing program 0: r0 = bpf$PROG_LOAD(0x5, &(0x7f0000000080)={0x1, 0x5, &(0x7f00000003c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000140)='GPL\x00'}, 0x48) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000000c0)={r0, 0x18000000000002a0, 0xe, 0x0, &(0x7f0000000380)="b9e403c6630d698cb8a00b04339c", 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x40) 13:19:10 executing program 1: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x210000000013, &(0x7f00000000c0)=0x100000001, 0x4) bind$inet(r0, &(0x7f0000000080)={0x2, 0x4e21, @local}, 0x10) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000040)='bbr\x00', 0x4) connect$inet(r0, &(0x7f0000000180)={0x2, 0x4e21, @local}, 0x10) setsockopt$inet_tcp_TCP_REPAIR(r0, 0x6, 0x13, &(0x7f0000000200), 0x88) sendto$inet(r0, &(0x7f0000000240)="b8a309b80b77bce75fa2108e5bede96abb6bcfe50d6091680ab3ea62b792c869dd9911681d5580a363e81091611894365d0d49d665fedd89d2c05049f95de8b92087eb0ac866b2263d1f5b97f715", 0x4e, 0x0, 0x0, 0x0) 13:19:10 executing program 2: r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) bpf$PROG_LOAD(0x5, &(0x7f0000000440)={0xd, 0x4, &(0x7f0000000400)=@framed={{0xffffffb4, 0x0, 0x0, 0x0, 0x0, 0x61, 0x11, 0x50}, [@ldst={0x5}]}, &(0x7f0000000080)='GPL\x00', 0x4, 0x3f7, &(0x7f000000cf3d)=""/195, 0x0, 0x0, [0x2e]}, 0x48) 13:19:10 executing program 3: mkdir(&(0x7f00000003c0)='./file0\x00', 0x0) mkdir(&(0x7f0000000300)='./bus\x00', 0x0) syz_mount_image$tmpfs(&(0x7f0000000100)='tmpfs\x00', &(0x7f0000000400)='./bus/file0\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f0000003ac0)) lsetxattr$trusted_overlay_redirect(&(0x7f0000000340)='./file0\x00', &(0x7f00000004c0)='trusted.overlay.redirect\x00', 0x0, 0x0, 0x0) mount(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000000)='configfs\x00', 0x0, 0x0) mount$overlay(0x0, &(0x7f0000000200)='./file0\x00', &(0x7f00000000c0)='overlay\x00', 0x0, &(0x7f0000000240)=ANY=[@ANYBLOB='lowerdir=.:file0']) mkdir(&(0x7f00000002c0)='./file1\x00', 0x0) mount$overlay(0x0, &(0x7f0000000040)='./bus\x00', &(0x7f0000000080)='overlay\x00', 0x0, &(0x7f0000000280)=ANY=[@ANYBLOB='upperdir=./bus,workdir=./file1,lowerdir=./file0']) chdir(&(0x7f00000001c0)='./bus\x00') rename(&(0x7f0000000380)='./file0\x00', &(0x7f0000000440)='./bus/file0\x00') 13:19:11 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000200)='/dev/snapshot\x00', 0x0, 0x0) ioctl$SNAPSHOT_SET_SWAP_AREA(r0, 0x400c330d, &(0x7f0000000240)) 13:19:11 executing program 5: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)={0x70, 0x2, 0x6, 0x5, 0x0, 0x9000000, {}, [@IPSET_ATTR_TYPENAME={0xe, 0x3, 'bitmap:ip\x00'}, @IPSET_ATTR_REVISION={0x5}, @IPSET_ATTR_SETNAME={0x9, 0x2, 'syz0\x00'}, @IPSET_ATTR_DATA={0x28, 0x7, 0x0, 0x1, [@IPSET_ATTR_IP={0xc, 0x1, 0x0, 0x1, @IPSET_ATTR_IPADDR_IPV4={0x8, 0x1, 0x1, 0x0, @multicast1}}, @IPSET_ATTR_IP_TO={0x18, 0x2, 0x0, 0x1, @IPSET_ATTR_IPADDR_IPV6={0x14, 0x2, 0x1, 0x0, @initdev={0xfe, 0x88, [], 0x0, 0x0}}}]}, @IPSET_ATTR_FAMILY={0x5, 0x5, 0x2}, @IPSET_ATTR_PROTOCOL={0x5, 0x1, 0x6}]}, 0x70}}, 0x0) syzkaller login: [ 214.849564][ T8477] IPVS: ftp: loaded support on port[0] = 21 [ 214.911173][ T8477] chnl_net:caif_netlink_parms(): no params data found [ 214.944910][ T8477] bridge0: port 1(bridge_slave_0) entered blocking state [ 214.953843][ T8477] bridge0: port 1(bridge_slave_0) entered disabled state [ 214.961343][ T8477] device bridge_slave_0 entered promiscuous mode [ 214.968880][ T8477] bridge0: port 2(bridge_slave_1) entered blocking state [ 214.975978][ T8477] bridge0: port 2(bridge_slave_1) entered disabled state [ 214.991249][ T8477] device bridge_slave_1 entered promiscuous mode [ 215.019653][ T8477] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 215.020029][ T8479] IPVS: ftp: loaded support on port[0] = 21 [ 215.041289][ T8477] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 215.062381][ T8477] team0: Port device team_slave_0 added [ 215.071473][ T8477] team0: Port device team_slave_1 added [ 215.088724][ T8477] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 215.095675][ T8477] 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. [ 215.121629][ T8477] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 215.134234][ T8477] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 215.141572][ T8477] 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. [ 215.167727][ T8477] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 215.194575][ T8477] device hsr_slave_0 entered promiscuous mode [ 215.201104][ T8477] device hsr_slave_1 entered promiscuous mode [ 215.213653][ T8481] IPVS: ftp: loaded support on port[0] = 21 [ 215.281105][ T8479] chnl_net:caif_netlink_parms(): no params data found [ 215.329009][ T8477] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 215.348472][ T8477] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 215.364206][ T8483] IPVS: ftp: loaded support on port[0] = 21 [ 215.370757][ T8477] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 215.381755][ T8477] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 215.401484][ T8479] bridge0: port 1(bridge_slave_0) entered blocking state [ 215.408930][ T8479] bridge0: port 1(bridge_slave_0) entered disabled state [ 215.417394][ T8479] device bridge_slave_0 entered promiscuous mode [ 215.444860][ T8479] bridge0: port 2(bridge_slave_1) entered blocking state [ 215.452025][ T8479] bridge0: port 2(bridge_slave_1) entered disabled state [ 215.459505][ T8479] device bridge_slave_1 entered promiscuous mode [ 215.475808][ T8477] bridge0: port 2(bridge_slave_1) entered blocking state [ 215.482869][ T8477] bridge0: port 2(bridge_slave_1) entered forwarding state [ 215.490113][ T8477] bridge0: port 1(bridge_slave_0) entered blocking state [ 215.497142][ T8477] bridge0: port 1(bridge_slave_0) entered forwarding state [ 215.542025][ T8485] IPVS: ftp: loaded support on port[0] = 21 [ 215.565936][ T8479] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 215.580427][ T8481] chnl_net:caif_netlink_parms(): no params data found [ 215.616991][ T8479] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 215.662183][ T8487] IPVS: ftp: loaded support on port[0] = 21 [ 215.675951][ T8483] chnl_net:caif_netlink_parms(): no params data found [ 215.688209][ T8479] team0: Port device team_slave_0 added [ 215.695729][ T8479] team0: Port device team_slave_1 added [ 215.726211][ T8481] bridge0: port 1(bridge_slave_0) entered blocking state [ 215.733376][ T8481] bridge0: port 1(bridge_slave_0) entered disabled state [ 215.741318][ T8481] device bridge_slave_0 entered promiscuous mode [ 215.756909][ T8477] 8021q: adding VLAN 0 to HW filter on device bond0 [ 215.766995][ T8481] bridge0: port 2(bridge_slave_1) entered blocking state [ 215.775632][ T8481] bridge0: port 2(bridge_slave_1) entered disabled state [ 215.783563][ T8481] device bridge_slave_1 entered promiscuous mode [ 215.800559][ T8479] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 215.807510][ T8479] 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. [ 215.834571][ T8479] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 215.846570][ T8479] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 215.853908][ T8479] 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. [ 215.880460][ T8479] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 215.928991][ T8479] device hsr_slave_0 entered promiscuous mode [ 215.935506][ T8479] device hsr_slave_1 entered promiscuous mode [ 215.942580][ T8479] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 215.950554][ T8479] Cannot create hsr debugfs directory [ 215.961804][ T8481] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 215.975710][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 215.983876][ T3710] bridge0: port 1(bridge_slave_0) entered disabled state [ 215.991882][ T3710] bridge0: port 2(bridge_slave_1) entered disabled state [ 216.000269][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 216.014518][ T8481] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 216.025911][ T8485] chnl_net:caif_netlink_parms(): no params data found [ 216.052945][ T8477] 8021q: adding VLAN 0 to HW filter on device team0 [ 216.080947][ T8487] chnl_net:caif_netlink_parms(): no params data found [ 216.092416][ T8481] team0: Port device team_slave_0 added [ 216.098349][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 216.106859][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 216.115382][ T9152] bridge0: port 1(bridge_slave_0) entered blocking state [ 216.122526][ T9152] bridge0: port 1(bridge_slave_0) entered forwarding state [ 216.130241][ T8483] bridge0: port 1(bridge_slave_0) entered blocking state [ 216.137259][ T8483] bridge0: port 1(bridge_slave_0) entered disabled state [ 216.145723][ T8483] device bridge_slave_0 entered promiscuous mode [ 216.162831][ T8481] team0: Port device team_slave_1 added [ 216.169118][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 216.177596][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 216.186359][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 216.193399][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 216.201520][ T8483] bridge0: port 2(bridge_slave_1) entered blocking state [ 216.208632][ T8483] bridge0: port 2(bridge_slave_1) entered disabled state [ 216.216000][ T8483] device bridge_slave_1 entered promiscuous mode [ 216.237842][ T8481] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 216.244892][ T8481] 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. [ 216.271142][ T8481] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 216.295551][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 216.304652][ T8481] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 216.312194][ T8481] 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. [ 216.339450][ T8481] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 216.351358][ T8483] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 216.362859][ T8483] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 216.376274][ T8485] bridge0: port 1(bridge_slave_0) entered blocking state [ 216.383516][ T8485] bridge0: port 1(bridge_slave_0) entered disabled state [ 216.390924][ T8485] device bridge_slave_0 entered promiscuous mode [ 216.398579][ T8485] bridge0: port 2(bridge_slave_1) entered blocking state [ 216.405604][ T8485] bridge0: port 2(bridge_slave_1) entered disabled state [ 216.413026][ T8485] device bridge_slave_1 entered promiscuous mode [ 216.420505][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 216.456638][ T8483] team0: Port device team_slave_0 added [ 216.471142][ T8481] device hsr_slave_0 entered promiscuous mode [ 216.477611][ T8481] device hsr_slave_1 entered promiscuous mode [ 216.484243][ T8481] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 216.491969][ T8481] Cannot create hsr debugfs directory [ 216.502602][ T8483] team0: Port device team_slave_1 added [ 216.509270][ T8485] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 216.518555][ T8487] bridge0: port 1(bridge_slave_0) entered blocking state [ 216.525616][ T8487] bridge0: port 1(bridge_slave_0) entered disabled state [ 216.533134][ T8487] device bridge_slave_0 entered promiscuous mode [ 216.547347][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 216.557161][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 216.565985][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 216.579483][ T8485] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 216.591528][ T8479] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 216.607250][ T8485] team0: Port device team_slave_0 added [ 216.615189][ T8485] team0: Port device team_slave_1 added [ 216.621099][ T8487] bridge0: port 2(bridge_slave_1) entered blocking state [ 216.628109][ T8487] bridge0: port 2(bridge_slave_1) entered disabled state [ 216.635681][ T8487] device bridge_slave_1 entered promiscuous mode [ 216.647809][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 216.656175][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 216.665010][ T8479] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 216.677764][ T8479] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 216.702753][ T8483] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 216.709772][ T8483] 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. [ 216.735915][ T8483] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 216.747918][ T8483] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 216.754910][ T8483] 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. [ 216.781258][ T8483] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 216.792151][ T3768] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 216.800464][ T3768] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 216.817029][ T8479] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 216.835330][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 216.843775][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 216.853055][ T8477] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 216.861839][ T8487] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 216.871274][ T8485] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 216.878207][ T8485] 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. [ 216.898518][ T17] Bluetooth: hci0: command 0x0409 tx timeout [ 216.905430][ T8485] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 216.932872][ T8483] device hsr_slave_0 entered promiscuous mode [ 216.939452][ T8483] device hsr_slave_1 entered promiscuous mode [ 216.945859][ T8483] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 216.953484][ T8483] Cannot create hsr debugfs directory [ 216.969155][ T8487] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 216.978237][ T8481] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 216.991624][ T8485] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 216.998998][ T8485] 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. [ 217.025304][ T8485] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 217.057912][ T8481] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 217.064671][ T3768] Bluetooth: hci1: command 0x0409 tx timeout [ 217.074329][ T8481] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 217.086839][ T8485] device hsr_slave_0 entered promiscuous mode [ 217.093401][ T8485] device hsr_slave_1 entered promiscuous mode [ 217.099998][ T8485] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 217.107532][ T8485] Cannot create hsr debugfs directory [ 217.122723][ T8481] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 217.137622][ T8487] team0: Port device team_slave_0 added [ 217.145122][ T8487] team0: Port device team_slave_1 added [ 217.162587][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 217.172674][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 217.200709][ T8477] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 217.220619][ T17] Bluetooth: hci2: command 0x0409 tx timeout [ 217.230485][ T8483] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 217.250659][ T8483] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 217.259363][ T8487] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 217.266311][ T8487] 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. [ 217.292638][ T8487] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 217.312501][ T8483] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 217.322674][ T8483] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 217.350010][ T8487] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 217.356968][ T8487] 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. [ 217.378283][ T17] Bluetooth: hci3: command 0x0409 tx timeout [ 217.385279][ T8487] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 217.402391][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 217.411233][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 217.423578][ T8479] 8021q: adding VLAN 0 to HW filter on device bond0 [ 217.435276][ T8477] device veth0_vlan entered promiscuous mode [ 217.451757][ T8487] device hsr_slave_0 entered promiscuous mode [ 217.458721][ T8487] device hsr_slave_1 entered promiscuous mode [ 217.465435][ T8487] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 217.473166][ T8487] Cannot create hsr debugfs directory [ 217.478848][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 217.486933][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 217.500968][ T8485] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 217.523789][ T8481] 8021q: adding VLAN 0 to HW filter on device bond0 [ 217.532123][ T8477] device veth1_vlan entered promiscuous mode [ 217.538843][ T8884] Bluetooth: hci4: command 0x0409 tx timeout [ 217.545160][ T3768] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 217.553454][ T3768] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 217.561310][ T3768] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 217.570394][ T8485] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 217.584158][ T8485] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 217.593725][ T8485] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 217.624621][ T3710] Bluetooth: hci5: command 0x0409 tx timeout [ 217.624813][ T8487] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 217.640302][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 217.648046][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 217.660353][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 217.669894][ T8479] 8021q: adding VLAN 0 to HW filter on device team0 [ 217.681707][ T8481] 8021q: adding VLAN 0 to HW filter on device team0 [ 217.691207][ T8487] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 217.705282][ T8487] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 217.714183][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 217.722285][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 217.730243][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 217.738819][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 217.747042][ T3710] bridge0: port 1(bridge_slave_0) entered blocking state [ 217.754089][ T3710] bridge0: port 1(bridge_slave_0) entered forwarding state [ 217.761931][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 217.770474][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 217.778858][ T3710] bridge0: port 2(bridge_slave_1) entered blocking state [ 217.785912][ T3710] bridge0: port 2(bridge_slave_1) entered forwarding state [ 217.801650][ T8487] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 217.827353][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 217.835268][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 217.844064][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 217.852987][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 217.861526][ T9289] bridge0: port 1(bridge_slave_0) entered blocking state [ 217.868572][ T9289] bridge0: port 1(bridge_slave_0) entered forwarding state [ 217.876295][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 217.884834][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 217.893141][ T9289] bridge0: port 2(bridge_slave_1) entered blocking state [ 217.900181][ T9289] bridge0: port 2(bridge_slave_1) entered forwarding state [ 217.913524][ T8477] device veth0_macvtap entered promiscuous mode [ 217.931159][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 217.940740][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 217.949574][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 217.957904][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 217.966972][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 217.976004][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 217.984803][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 217.993169][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 218.008578][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 218.016364][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 218.024633][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 218.033089][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 218.041808][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 218.050486][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 218.061336][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 218.080126][ T8477] device veth1_macvtap entered promiscuous mode [ 218.090106][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 218.099297][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 218.107744][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 218.116285][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 218.124762][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 218.133150][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 218.141514][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 218.149860][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 218.164228][ T8483] 8021q: adding VLAN 0 to HW filter on device bond0 [ 218.178003][ T8481] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 218.185677][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 218.194925][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 218.203105][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 218.210734][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 218.227088][ T8477] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 218.235670][ T8479] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 218.245337][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 218.254086][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 218.266363][ T8483] 8021q: adding VLAN 0 to HW filter on device team0 [ 218.285600][ T8485] 8021q: adding VLAN 0 to HW filter on device bond0 [ 218.294666][ T8477] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 218.305514][ T8487] 8021q: adding VLAN 0 to HW filter on device bond0 [ 218.313325][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 218.322159][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 218.333143][ T8477] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 218.346505][ T8477] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 218.355449][ T8477] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 218.364487][ T8477] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 218.378548][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 218.386913][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 218.404442][ T9289] bridge0: port 1(bridge_slave_0) entered blocking state [ 218.411516][ T9289] bridge0: port 1(bridge_slave_0) entered forwarding state [ 218.419441][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 218.427948][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 218.436230][ T9289] bridge0: port 2(bridge_slave_1) entered blocking state [ 218.443288][ T9289] bridge0: port 2(bridge_slave_1) entered forwarding state [ 218.451210][ T9289] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 218.465355][ T8485] 8021q: adding VLAN 0 to HW filter on device team0 [ 218.480766][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 218.493578][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 218.501390][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 218.510364][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 218.517913][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 218.526846][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 218.535776][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 218.543361][ T9152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 218.555172][ T8479] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 218.564909][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 218.573408][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 218.583320][ T3710] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 218.607491][ T3710] ================================================================== [ 218.615602][ T3710] BUG: KCSAN: data-race in skb_queue_tail / wg_packet_handshake_receive_worker [ 218.624517][ T3710] [ 218.626838][ T3710] read-write to 0xffff88810cf49c30 of 4 bytes by interrupt on cpu 1: [ 218.634901][ T3710] skb_queue_tail+0x75/0x90 [ 218.639402][ T3710] wg_packet_receive+0x4ff/0xca0 [ 218.641164][ T3083] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 218.644401][ T3710] wg_receive+0x4a/0x70 [ 218.656326][ T3710] udp_queue_rcv_one_skb+0x6eb/0x7e0 [ 218.660954][ T3083] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 218.661610][ T3710] udp_queue_rcv_skb+0xd2/0x430 [ 218.673721][ T3710] __udp4_lib_rcv+0x1354/0x1a80 [ 218.677053][ T8479] device veth0_vlan entered promiscuous mode [ 218.678558][ T3710] udp_rcv+0x1d/0x20 [ 218.678568][ T3710] ip_protocol_deliver_rcu+0x1f9/0x3e0 [ 218.678583][ T3710] ip_local_deliver+0x1c0/0x280 [ 218.698669][ T3710] ip_rcv+0x1a6/0x250 [ 218.702640][ T3710] __netif_receive_skb+0x8b/0x1b0 [ 218.707654][ T3710] process_backlog+0x23f/0x3d0 [ 218.712409][ T3710] napi_poll+0x178/0x4c0 [ 218.716641][ T3710] net_rx_action+0x17a/0x480 [ 218.720732][ T8485] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 218.721222][ T3710] __do_softirq+0x12c/0x2b1 [ 218.733544][ T8485] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 218.736279][ T3710] asm_call_irq_on_stack+0xf/0x20 [ 218.751571][ T3710] do_softirq_own_stack+0x32/0x40 [ 218.756586][ T3710] __local_bh_enable_ip+0xba/0xd0 [ 218.761605][ T3710] _raw_read_unlock_bh+0x17/0x20 [ 218.763905][ T8485] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 218.766576][ T3710] wg_socket_send_buffer_to_peer+0x1b6/0x1e0 [ 218.779269][ T3710] wg_packet_handshake_send_worker+0xf9/0x140 [ 218.785416][ T3710] process_one_work+0x3e1/0x950 [ 218.790263][ T3710] worker_thread+0x635/0xb90 [ 218.794941][ T3710] kthread+0x1fd/0x220 [ 218.798985][ T3710] ret_from_fork+0x1f/0x30 [ 218.803369][ T3710] [ 218.805674][ T3710] read to 0xffff88810cf49c30 of 4 bytes by task 3710 on cpu 0: [ 218.813203][ T3710] wg_packet_handshake_receive_worker+0xbd/0x440 [ 218.819526][ T3710] process_one_work+0x3e1/0x950 [ 218.824370][ T3710] worker_thread+0x635/0xb90 [ 218.828955][ T3710] kthread+0x1fd/0x220 [ 218.833020][ T3710] ret_from_fork+0x1f/0x30 [ 218.837425][ T3710] [ 218.839741][ T3710] Reported by Kernel Concurrency Sanitizer on: [ 218.845882][ T3710] CPU: 0 PID: 3710 Comm: kworker/0:2 Not tainted 5.10.0-rc7-syzkaller #0 [ 218.854280][ T3710] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 218.862322][ T8485] device veth0_vlan entered promiscuous mode [ 218.864338][ T3710] Workqueue: wg-kex-wg2 wg_packet_handshake_receive_worker [ 218.876734][ T8485] device veth1_vlan entered promiscuous mode [ 218.877469][ T3710] ================================================================== [ 218.891461][ T3710] Kernel panic - not syncing: panic_on_warn set ... [ 218.898039][ T3710] CPU: 0 PID: 3710 Comm: kworker/0:2 Not tainted 5.10.0-rc7-syzkaller #0 [ 218.903606][ T8485] device veth0_macvtap entered promiscuous mode [ 218.906442][ T3710] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 218.917048][ T8485] device veth1_macvtap entered promiscuous mode [ 218.922720][ T3710] Workqueue: wg-kex-wg2 wg_packet_handshake_receive_worker [ 218.922726][ T3710] Call Trace: [ 218.922743][ T3710] dump_stack+0x116/0x15d [ 218.922768][ T3710] panic+0x1e7/0x5fa [ 218.941846][ T8485] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 218.943767][ T3710] ? vprintk_emit+0x2f2/0x370 [ 218.947635][ T8485] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 218.958018][ T3710] kcsan_report+0x67b/0x680 [ 218.958030][ T3710] ? kcsan_setup_watchpoint+0x46a/0x4d0 [ 218.958042][ T3710] ? wg_packet_handshake_receive_worker+0xbd/0x440 [ 218.958054][ T3710] ? process_one_work+0x3e1/0x950 [ 218.958064][ T3710] ? worker_thread+0x635/0xb90 [ 218.958073][ T3710] ? kthread+0x1fd/0x220 [ 218.958082][ T3710] ? ret_from_fork+0x1f/0x30 [ 218.958100][ T3710] kcsan_setup_watchpoint+0x46a/0x4d0 [ 218.958109][ T3710] ? skb_dequeue+0xb3/0xd0 [ 218.958120][ T3710] wg_packet_handshake_receive_worker+0xbd/0x440 [ 218.958131][ T3710] process_one_work+0x3e1/0x950 [ 218.958143][ T3710] worker_thread+0x635/0xb90 [ 218.958154][ T3710] ? finish_task_switch+0x178/0x280 [ 218.958172][ T3710] ? process_one_work+0x950/0x950 [ 218.970193][ T8485] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 218.972623][ T3710] kthread+0x1fd/0x220 [ 218.978244][ T54] Bluetooth: hci0: command 0x041b tx timeout [ 218.982646][ T3710] ? process_one_work+0x950/0x950 [ 218.993030][ T8485] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 218.994122][ T3710] ? kthread_blkcg+0x80/0x80 [ 218.998881][ T8485] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 219.003075][ T3710] ret_from_fork+0x1f/0x30 [ 219.011069][ T8485] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 219.017944][ T3710] Kernel Offset: disabled [ 219.106456][ T3710] Rebooting in 86400 seconds..