[ 47.663216][ T27] audit: type=1800 audit(1578447067.317:25): pid=8207 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 47.689723][ T27] audit: type=1800 audit(1578447067.317:26): pid=8207 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 47.750991][ T27] audit: type=1800 audit(1578447067.327:27): pid=8207 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 47.789659][ T27] audit: type=1800 audit(1578447067.327:28): pid=8207 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.22' (ECDSA) to the list of known hosts. 2020/01/08 01:31:17 fuzzer started 2020/01/08 01:31:18 dialing manager at 10.128.0.26:35703 2020/01/08 01:31:18 syscalls: 2824 2020/01/08 01:31:18 code coverage: enabled 2020/01/08 01:31:18 comparison tracing: enabled 2020/01/08 01:31:18 extra coverage: enabled 2020/01/08 01:31:18 setuid sandbox: enabled 2020/01/08 01:31:18 namespace sandbox: enabled 2020/01/08 01:31:18 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 01:31:18 fault injection: enabled 2020/01/08 01:31:18 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 01:31:18 net packet injection: enabled 2020/01/08 01:31:18 net device setup: enabled 2020/01/08 01:31:18 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 01:31:18 devlink PCI setup: PCI device 0000:00:10.0 is not available 01:31:19 executing program 0: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000100)='TIPCv2\x00') sendmsg$TIPC_NL_BEARER_ENABLE(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000280)={0x60, r1, 0x1, 0x0, 0x0, {}, [@TIPC_NLA_BEARER={0x4c, 0x1, [@TIPC_NLA_BEARER_UDP_OPTS={0x38, 0x4, {{0x20, 0x1, @in6={0xa, 0x0, 0x0, @loopback={0xff00000000000000}}}, {0x14, 0x2, @in={0x2, 0x0, @dev}}}}, @TIPC_NLA_BEARER_NAME={0x10, 0x1, @udp='udp:syz1\x00'}]}]}, 0x60}}, 0x0) 01:31:20 executing program 1: creat(&(0x7f0000000080)='./bus\x00', 0x0) r0 = syz_open_dev$vcsn(&(0x7f0000001180)='/dev/vcs#\x00', 0x6, 0x0) r1 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f00000011c0)='/dev/ubi_ctrl\x00', 0x0, 0x0) mount$9p_fd(0x0, &(0x7f0000001100)='./bus\x00', &(0x7f0000001140)='9p\x00', 0x0, &(0x7f0000001200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) syzkaller login: [ 60.368272][ T8370] IPVS: ftp: loaded support on port[0] = 21 [ 60.544236][ T8370] chnl_net:caif_netlink_parms(): no params data found [ 60.569510][ T8373] IPVS: ftp: loaded support on port[0] = 21 01:31:20 executing program 2: r0 = socket(0x18, 0x0, 0x0) perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0x1f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getsockopt$SO_BINDTODEVICE(r0, 0x1, 0x3c, &(0x7f0000000000), 0x20a154cc) [ 60.638041][ T8370] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.648498][ T8370] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.657124][ T8370] device bridge_slave_0 entered promiscuous mode [ 60.678033][ T8370] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.685481][ T8370] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.693660][ T8370] device bridge_slave_1 entered promiscuous mode [ 60.765972][ T8370] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.803201][ T8370] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.828453][ T8370] team0: Port device team_slave_0 added [ 60.835641][ T8373] chnl_net:caif_netlink_parms(): no params data found [ 60.846848][ T8370] team0: Port device team_slave_1 added [ 60.858217][ T8376] IPVS: ftp: loaded support on port[0] = 21 01:31:20 executing program 3: r0 = socket$inet6(0xa, 0x80003, 0xff) ioctl(r0, 0x1000008912, &(0x7f0000000080)="0800b5055e0bcfe87b2071") r1 = socket$rxrpc(0x21, 0x2, 0x2) sendto$rxrpc(r1, 0x0, 0x0, 0x0, &(0x7f0000000740)=@in6={0x21, 0x0, 0x2, 0x1c, {0xa, 0x0, 0x0, @local}}, 0x24) [ 60.921661][ T8370] device hsr_slave_0 entered promiscuous mode [ 60.960177][ T8370] device hsr_slave_1 entered promiscuous mode [ 61.127531][ T8378] IPVS: ftp: loaded support on port[0] = 21 [ 61.137827][ T8373] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.146535][ T8373] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.161642][ T8373] device bridge_slave_0 entered promiscuous mode [ 61.172013][ T8373] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.179160][ T8373] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.187142][ T8373] device bridge_slave_1 entered promiscuous mode 01:31:20 executing program 4: r0 = syz_open_dev$dri(&(0x7f0000000040)='/dev/dri/card#\x00', 0x1, 0x0) ioctl$DRM_IOCTL_MODE_GETCRTC(r0, 0xc06864a1, &(0x7f0000000500)={0x0, 0x0, 0x20}) [ 61.253997][ T8373] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.286262][ T8373] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.364568][ T8370] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.444117][ T8376] chnl_net:caif_netlink_parms(): no params data found [ 61.458735][ T8370] netdevsim netdevsim0 netdevsim1: renamed from eth1 01:31:21 executing program 5: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000008000)={0x0, {{0x2, 0x0, @multicast1}}}, 0x6) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000000)={0x3, {{0x2, 0x0, @multicast2}}}, 0x88) getsockopt$inet_buf(r0, 0x0, 0x30, &(0x7f0000008000)=""/144, &(0x7f0000012ffc)=0x90) [ 61.572357][ T8370] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.604059][ T8373] team0: Port device team_slave_0 added [ 61.612406][ T8373] team0: Port device team_slave_1 added [ 61.650447][ T8382] IPVS: ftp: loaded support on port[0] = 21 [ 61.658325][ T8370] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.751301][ T8373] device hsr_slave_0 entered promiscuous mode [ 61.810044][ T8373] device hsr_slave_1 entered promiscuous mode [ 61.859704][ T8373] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 61.867393][ T8373] Cannot create hsr debugfs directory [ 61.893226][ T8384] IPVS: ftp: loaded support on port[0] = 21 [ 61.926516][ T8378] chnl_net:caif_netlink_parms(): no params data found [ 61.972219][ T8376] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.979333][ T8376] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.986900][ T8376] device bridge_slave_0 entered promiscuous mode [ 62.015448][ T8376] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.024779][ T8376] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.032446][ T8376] device bridge_slave_1 entered promiscuous mode [ 62.112389][ T8382] chnl_net:caif_netlink_parms(): no params data found [ 62.126766][ T8378] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.134541][ T8378] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.142468][ T8378] device bridge_slave_0 entered promiscuous mode [ 62.150952][ T8376] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.181075][ T8376] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.190489][ T8378] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.197570][ T8378] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.207427][ T8378] device bridge_slave_1 entered promiscuous mode [ 62.227810][ T8373] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 62.295549][ T8373] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 62.381626][ T8373] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 62.429343][ T8378] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.446914][ T8376] team0: Port device team_slave_0 added [ 62.453209][ T8373] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 62.532475][ T8382] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.539734][ T8382] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.547401][ T8382] device bridge_slave_0 entered promiscuous mode [ 62.556072][ T8378] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.573058][ T8376] team0: Port device team_slave_1 added [ 62.589516][ T8378] team0: Port device team_slave_0 added [ 62.597074][ T8378] team0: Port device team_slave_1 added [ 62.604540][ T8382] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.614418][ T8382] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.622147][ T8382] device bridge_slave_1 entered promiscuous mode [ 62.694373][ T8382] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.752327][ T8376] device hsr_slave_0 entered promiscuous mode [ 62.800552][ T8376] device hsr_slave_1 entered promiscuous mode [ 62.869671][ T8376] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 62.877239][ T8376] Cannot create hsr debugfs directory [ 62.888103][ T8382] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.897461][ T8384] chnl_net:caif_netlink_parms(): no params data found [ 62.952394][ T8378] device hsr_slave_0 entered promiscuous mode [ 62.989943][ T8378] device hsr_slave_1 entered promiscuous mode [ 63.039762][ T8378] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 63.039793][ T8378] Cannot create hsr debugfs directory [ 63.096192][ T8384] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.105126][ T8384] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.113015][ T8384] device bridge_slave_0 entered promiscuous mode [ 63.124917][ T8370] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.148628][ T8382] team0: Port device team_slave_0 added [ 63.155118][ T8384] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.163036][ T8384] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.170749][ T8384] device bridge_slave_1 entered promiscuous mode [ 63.207369][ T8382] team0: Port device team_slave_1 added [ 63.219033][ T8384] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.249380][ T8384] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.293639][ T8370] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.304604][ T8384] team0: Port device team_slave_0 added [ 63.314838][ T8384] team0: Port device team_slave_1 added [ 63.325790][ T8373] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.335981][ T2810] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.344665][ T2810] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.411436][ T8384] device hsr_slave_0 entered promiscuous mode [ 63.480626][ T8384] device hsr_slave_1 entered promiscuous mode [ 63.519791][ T8384] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 63.527545][ T8384] Cannot create hsr debugfs directory [ 63.581873][ T8382] device hsr_slave_0 entered promiscuous mode [ 63.619994][ T8382] device hsr_slave_1 entered promiscuous mode [ 63.679685][ T8382] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 63.687259][ T8382] Cannot create hsr debugfs directory [ 63.696190][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.705148][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.713980][ T2914] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.721218][ T2914] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.756803][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.765466][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.774432][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.784042][ T2794] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.791139][ T2794] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.800149][ T8376] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 63.846079][ T8376] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 63.915204][ T8376] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 63.998592][ T2919] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.006964][ T2919] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.014729][ T2919] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.037246][ T8373] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.044198][ T8376] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 64.108724][ T8378] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 64.152744][ T8378] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 64.211758][ T8378] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 64.252064][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.261143][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.270609][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.301217][ T8378] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 64.333731][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.342333][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.351157][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.359489][ T2914] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.366782][ T2914] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.374460][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.383004][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.391524][ T2914] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.398606][ T2914] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.406154][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.414818][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.429427][ T8370] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 64.440283][ T8370] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.476149][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.486011][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.494676][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.503219][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.512082][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.520508][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.528931][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.537458][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.546013][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.554759][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.563405][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.595582][ T8384] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 64.641547][ T2810] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.649158][ T2810] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.657325][ T2810] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.665762][ T2810] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.685390][ T8373] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.697578][ T8373] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.711379][ T8384] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 64.744583][ T8384] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 64.802286][ T2810] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.811030][ T2810] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.819243][ T2810] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.827191][ T2810] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.840459][ T8370] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.859562][ T8384] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 64.900073][ T8382] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 64.942837][ T8382] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 64.992460][ T8382] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 65.048079][ T8382] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 65.111111][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.118552][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.126306][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 65.135431][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.146639][ T8373] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.164792][ T8376] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.194151][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.202137][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.235066][ T8376] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.253767][ T8370] device veth0_vlan entered promiscuous mode [ 65.277224][ T2919] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 65.288546][ T2919] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.296841][ T2919] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 65.307271][ T2919] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.316061][ T2919] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.324733][ T2919] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.333841][ T2919] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.340964][ T2919] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.348976][ T2919] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.357251][ T2919] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.365024][ T2919] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.393765][ T8370] device veth1_vlan entered promiscuous mode [ 65.409374][ T8382] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.418244][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.427246][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.435412][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.444123][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.452555][ T2914] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.459642][ T2914] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.467098][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.485225][ T8384] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.497410][ T8378] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.522854][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.534504][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.543363][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.551851][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.559393][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.567402][ T2914] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.582314][ T8373] device veth0_vlan entered promiscuous mode [ 65.605484][ T8373] device veth1_vlan entered promiscuous mode [ 65.623838][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 65.633813][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.643520][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.652266][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.660738][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.668303][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.677855][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.687814][ T8382] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.698917][ T8384] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.725709][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.759520][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.773896][ T2794] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.798575][ T8378] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.854717][ T8378] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 65.866887][ T8378] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.917759][ T8378] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.985614][ T8378] device veth0_vlan entered promiscuous mode [ 66.004168][ T8378] device veth1_vlan entered promiscuous mode [ 170.769603][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 170.776381][ C0] rcu: 0-...!: (10499 ticks this GP) idle=ea2/1/0x4000000000000002 softirq=12633/12633 fqs=39 [ 170.787043][ C0] (t=10500 jiffies g=6585 q=594) [ 170.792060][ C0] rcu: rcu_preempt kthread starved for 10419 jiffies! g6585 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 170.803155][ C0] rcu: RCU grace-period kthread stack dump: [ 170.809039][ C0] rcu_preempt R running task 29104 10 2 0x80004000 [ 170.816934][ C0] Call Trace: [ 170.820225][ C0] __schedule+0x9a0/0xcc0 [ 170.824557][ C0] schedule+0x181/0x210 [ 170.828711][ C0] schedule_timeout+0x14f/0x240 [ 170.833551][ C0] ? run_local_timers+0x120/0x120 [ 170.838568][ C0] rcu_gp_kthread+0xed8/0x1770 [ 170.843347][ C0] kthread+0x332/0x350 [ 170.847403][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 170.852501][ C0] ? kthread_blkcg+0xe0/0xe0 [ 170.857082][ C0] ret_from_fork+0x24/0x30 [ 170.861499][ C0] NMI backtrace for cpu 0 [ 170.865817][ C0] CPU: 0 PID: 4370 Comm: udevd Not tainted 5.5.0-rc5-syzkaller #0 [ 170.873603][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 170.883644][ C0] Call Trace: [ 170.886917][ C0] [ 170.889761][ C0] dump_stack+0x1fb/0x318 [ 170.894082][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 170.898920][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 170.905062][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 170.911376][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 170.917350][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 170.923229][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 170.928337][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 170.937609][ C0] ? trace_hardirqs_off+0x74/0x80 [ 170.942627][ C0] update_process_times+0x12d/0x180 [ 170.947815][ C0] tick_sched_timer+0x263/0x420 [ 170.952653][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 170.958185][ C0] __hrtimer_run_queues+0x403/0x840 [ 170.963389][ C0] hrtimer_interrupt+0x38c/0xda0 [ 170.968333][ C0] ? debug_smp_processor_id+0x9/0x20 [ 170.973612][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 170.979149][ C0] apic_timer_interrupt+0xf/0x20 [ 170.984069][ C0] [ 170.987000][ C0] RIP: 0010:free_thread_stack+0x14c/0x590 [ 170.992711][ C0] Code: 2e 00 48 89 df 31 f6 e8 02 8d 6f 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 73 94 6a 00 49 8b 1c 24 48 83 c3 08 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 55 94 6a 00 48 8b 3b be fc ff ff [ 171.012389][ C0] RSP: 0018:ffffc90002057760 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13 [ 171.020916][ C0] RAX: 1ffff11011ac3b21 RBX: ffff88808d61d908 RCX: 0000000000000000 [ 171.028890][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00026822c0 [ 171.036860][ C0] RBP: ffffc90002057798 R08: 000000000003a728 R09: ffffed10144c8f09 [ 171.044825][ C0] R10: ffffed10144c8f09 R11: 0000000000000000 R12: ffff88808d61d9a0 [ 171.053225][ C0] R13: dffffc0000000000 R14: 1ffff11011ac3b34 R15: ffff8880a2647838 [ 171.061221][ C0] put_task_stack+0xa3/0x130 [ 171.065801][ C0] finish_task_switch+0x3f1/0x550 [ 171.070819][ C0] __schedule+0x9a8/0xcc0 [ 171.075146][ C0] schedule+0x181/0x210 [ 171.079293][ C0] schedule_hrtimeout_range_clock+0x3c7/0x510 [ 171.085356][ C0] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 171.091169][ C0] schedule_hrtimeout_range+0x2a/0x40 [ 171.096544][ C0] poll_schedule_timeout+0x11c/0x1c0 [ 171.101824][ C0] do_sys_poll+0x83f/0x1250 [ 171.106336][ C0] ? debug_object_activate+0x2f7/0x6f0 [ 171.111790][ C0] ? debug_object_active_state+0x1e3/0x4a0 [ 171.117592][ C0] ? __lock_acquire+0xc75/0x1be0 [ 171.122526][ C0] ? __x32_compat_sys_ppoll_time64+0xd0/0xd0 [ 171.128520][ C0] ? trace_hardirqs_on+0x74/0x80 [ 171.133470][ C0] ? ktime_get_ts64+0x6e/0x2c0 [ 171.138229][ C0] ? ktime_get_ts64+0x6e/0x2c0 [ 171.142982][ C0] ? read_seqcount_begin+0x125/0x1c0 [ 171.148278][ C0] ? trace_hardirqs_on+0x74/0x80 [ 171.153203][ C0] ? ktime_get_ts64+0x6e/0x2c0 [ 171.157959][ C0] ? read_seqcount_begin+0x17a/0x1c0 [ 171.163234][ C0] ? ktime_get_ts64+0x240/0x2c0 [ 171.168075][ C0] ? timespec64_add_safe+0x171/0x1b0 [ 171.173364][ C0] __se_sys_poll+0x1b0/0x360 [ 171.177949][ C0] __x64_sys_poll+0x7b/0x90 [ 171.182449][ C0] do_syscall_64+0xf7/0x1c0 [ 171.186944][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 171.192832][ C0] RIP: 0033:0x7f7cb13cb678 [ 171.197766][ C0] Code: 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 90 90 90 48 83 ec 28 8b 05 82 8f 2b 00 85 c0 75 17 48 63 d2 b8 07 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 48 83 c4 28 c3 89 54 24 08 48 89 74 24 10 [ 171.217368][ C0] RSP: 002b:00007ffff96c1300 EFLAGS: 00000246 ORIG_RAX: 0000000000000007 [ 171.225772][ C0] RAX: ffffffffffffffda RBX: 20c49ba5e353f7cf RCX: 00007f7cb13cb678 [ 171.233734][ C0] RDX: 000000000000ee30 RSI: 0000000000000001 RDI: 00007ffff96c13c0 [ 171.241719][ C0] RBP: 0000000000000000 R08: 00007ffff96c1310 R09: 00007ffff97a50b8 [ 171.249807][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000735170 [ 171.257769][ C0] R13: 00000000000020c5 R14: 00007ffff96c1394 R15: 0000000000735250