[ 32.574783] audit: type=1800 audit(1577462081.622:34): pid=6917 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 37.778476] random: sshd: uninitialized urandom read (32 bytes read) [ 38.297505] audit: type=1400 audit(1577462087.362:35): avc: denied { map } for pid=7089 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 38.348052] random: sshd: uninitialized urandom read (32 bytes read) [ 38.960799] random: sshd: uninitialized urandom read (32 bytes read) [ 1372.927685] audit: type=1400 audit(1577463421.992:36): avc: denied { map } for pid=7097 comm="sh" path="/bin/dash" dev="sda1" ino=1473 scontext=system_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 1545.163400] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.205' (ECDSA) to the list of known hosts. [ 1550.727079] random: sshd: uninitialized urandom read (32 bytes read) 2019/12/27 16:20:00 parsed 1 programs [ 1550.907489] audit: type=1400 audit(1577463599.972:37): avc: denied { map } for pid=7104 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 1551.854325] random: cc1: uninitialized urandom read (8 bytes read) 2019/12/27 16:20:01 executed programs: 0 [ 1552.827544] audit: type=1400 audit(1577463601.892:38): avc: denied { map } for pid=7104 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 1552.854078] audit: type=1400 audit(1577463601.922:39): avc: denied { map } for pid=7104 comm="syz-execprog" path="/root/syzkaller-shm364726458" dev="sda1" ino=2233 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 1552.912682] IPVS: ftp: loaded support on port[0] = 21 [ 1553.868991] chnl_net:caif_netlink_parms(): no params data found [ 1553.877178] IPVS: ftp: loaded support on port[0] = 21 [ 1553.909942] bridge0: port 1(bridge_slave_0) entered blocking state [ 1553.916795] bridge0: port 1(bridge_slave_0) entered disabled state [ 1553.924143] device bridge_slave_0 entered promiscuous mode [ 1553.931187] bridge0: port 2(bridge_slave_1) entered blocking state [ 1553.937567] bridge0: port 2(bridge_slave_1) entered disabled state [ 1553.945954] device bridge_slave_1 entered promiscuous mode [ 1553.961621] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1553.970529] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1553.986923] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1553.994249] team0: Port device team_slave_0 added [ 1554.003898] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1554.011167] team0: Port device team_slave_1 added [ 1554.021415] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1554.030949] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1554.091814] device hsr_slave_0 entered promiscuous mode [ 1554.160361] device hsr_slave_1 entered promiscuous mode [ 1554.220887] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1554.229706] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1554.248698] bridge0: port 2(bridge_slave_1) entered blocking state [ 1554.255101] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1554.261900] bridge0: port 1(bridge_slave_0) entered blocking state [ 1554.268235] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1554.302578] IPVS: ftp: loaded support on port[0] = 21 [ 1554.324599] chnl_net:caif_netlink_parms(): no params data found [ 1554.385428] IPVS: ftp: loaded support on port[0] = 21 [ 1554.393783] bridge0: port 1(bridge_slave_0) entered blocking state [ 1554.400666] bridge0: port 1(bridge_slave_0) entered disabled state [ 1554.408054] device bridge_slave_0 entered promiscuous mode [ 1554.416581] bridge0: port 2(bridge_slave_1) entered blocking state [ 1554.422980] bridge0: port 2(bridge_slave_1) entered disabled state [ 1554.429793] device bridge_slave_1 entered promiscuous mode [ 1554.458096] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1554.467413] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1554.527033] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1554.534376] team0: Port device team_slave_0 added [ 1554.554456] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1554.561550] team0: Port device team_slave_1 added [ 1554.568757] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1554.576962] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1554.591867] chnl_net:caif_netlink_parms(): no params data found [ 1554.606320] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 1554.612535] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1554.622823] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1554.702099] device hsr_slave_0 entered promiscuous mode [ 1554.780248] device hsr_slave_1 entered promiscuous mode [ 1554.865715] IPVS: ftp: loaded support on port[0] = 21 [ 1554.869331] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1554.877571] 8021q: adding VLAN 0 to HW filter on device team0 [ 1554.884867] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1554.892747] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1554.900662] bridge0: port 1(bridge_slave_0) entered disabled state [ 1554.907526] bridge0: port 2(bridge_slave_1) entered disabled state [ 1554.915965] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1554.934230] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1554.942548] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 1554.965194] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 1554.972942] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1554.980957] bridge0: port 1(bridge_slave_0) entered blocking state [ 1554.987287] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1555.004824] bridge0: port 1(bridge_slave_0) entered blocking state [ 1555.011318] bridge0: port 1(bridge_slave_0) entered disabled state [ 1555.018120] device bridge_slave_0 entered promiscuous mode [ 1555.031497] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 1555.038601] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 1555.046738] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1555.054509] bridge0: port 2(bridge_slave_1) entered blocking state [ 1555.060894] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1555.095936] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 1555.102468] bridge0: port 2(bridge_slave_1) entered blocking state [ 1555.108826] bridge0: port 2(bridge_slave_1) entered disabled state [ 1555.116838] device bridge_slave_1 entered promiscuous mode [ 1555.159620] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 1555.167939] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1555.178105] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1555.196433] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 1555.211593] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 1555.218469] chnl_net:caif_netlink_parms(): no params data found [ 1555.240098] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 1555.249934] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 1555.258679] IPVS: ftp: loaded support on port[0] = 21 [ 1555.269837] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1555.277275] team0: Port device team_slave_0 added [ 1555.302059] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 1555.309616] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1555.317394] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1555.327803] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1555.335652] team0: Port device team_slave_1 added [ 1555.342449] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1555.355758] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 1555.368012] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1555.379816] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 1555.389014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1555.416372] bridge0: port 1(bridge_slave_0) entered blocking state [ 1555.423187] bridge0: port 1(bridge_slave_0) entered disabled state [ 1555.430426] device bridge_slave_0 entered promiscuous mode [ 1555.438831] bridge0: port 2(bridge_slave_1) entered blocking state [ 1555.445192] bridge0: port 2(bridge_slave_1) entered disabled state [ 1555.452143] device bridge_slave_1 entered promiscuous mode [ 1555.459078] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 1555.533414] device hsr_slave_0 entered promiscuous mode [ 1555.590343] device hsr_slave_1 entered promiscuous mode [ 1555.677651] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 1555.685511] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1555.694459] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 1555.702336] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1555.733493] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1555.743008] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 1555.750638] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1555.758312] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1555.766274] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1555.772800] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1555.787470] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1555.803995] chnl_net:caif_netlink_parms(): no params data found [ 1555.819760] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1555.827905] team0: Port device team_slave_0 added [ 1555.835777] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1555.843296] team0: Port device team_slave_1 added [ 1555.859437] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1555.887198] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1555.898092] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1555.905288] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1555.929624] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 1555.937651] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 1555.945531] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1555.952294] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1555.966335] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1556.003693] device hsr_slave_0 entered promiscuous mode [ 1556.060272] device hsr_slave_1 entered promiscuous mode [ 1556.101004] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1556.121055] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 1556.132420] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1556.140900] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 1556.148065] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1556.159224] bridge0: port 1(bridge_slave_0) entered blocking state [ 1556.165889] bridge0: port 1(bridge_slave_0) entered disabled state [ 1556.173214] device bridge_slave_0 entered promiscuous mode [ 1556.181156] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1556.221455] bridge0: port 2(bridge_slave_1) entered blocking state [ 1556.227813] bridge0: port 2(bridge_slave_1) entered disabled state [ 1556.234862] device bridge_slave_1 entered promiscuous mode [ 1556.257177] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1556.266517] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1556.272643] 8021q: adding VLAN 0 to HW filter on device team0 [ 1556.304068] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1556.320929] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 1556.342426] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 1556.350434] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1556.357909] bridge0: port 1(bridge_slave_0) entered blocking state [ 1556.364318] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1556.371923] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 1556.380895] chnl_net:caif_netlink_parms(): no params data found [ 1556.401068] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 1556.409724] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1556.417196] team0: Port device team_slave_0 added [ 1556.424329] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 1556.432105] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 1556.439808] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1556.448534] bridge0: port 2(bridge_slave_1) entered blocking state [ 1556.454958] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1556.467951] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 1556.475457] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1556.482965] team0: Port device team_slave_1 added [ 1556.496134] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 1556.506552] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 1556.531370] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1556.539322] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 1556.549242] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 1556.558722] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1556.567834] bridge0: port 1(bridge_slave_0) entered blocking state [ 1556.574508] bridge0: port 1(bridge_slave_0) entered disabled state [ 1556.582425] device bridge_slave_0 entered promiscuous mode [ 1556.589373] bridge0: port 2(bridge_slave_1) entered blocking state [ 1556.596757] bridge0: port 2(bridge_slave_1) entered disabled state [ 1556.603710] device bridge_slave_1 entered promiscuous mode [ 1556.615950] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 1556.623794] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1556.633783] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1556.667227] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 1556.677150] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 1556.699419] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1556.718233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 1556.727168] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1556.737077] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 1556.745475] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1556.756710] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1556.769822] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1556.782302] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 1556.798716] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1556.834385] device hsr_slave_0 entered promiscuous mode [ 1556.852741] device hsr_slave_1 entered promiscuous mode [ 1556.871320] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 1556.878749] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1556.888349] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1556.894714] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1556.908540] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 1556.915740] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 1556.924702] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1556.931763] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1556.939008] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1556.957033] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1556.965148] team0: Port device team_slave_0 added [ 1556.973049] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1556.979107] 8021q: adding VLAN 0 to HW filter on device team0 [ 1556.986582] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1556.993611] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1557.002856] team0: Port device team_slave_1 added [ 1557.008361] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1557.017828] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 1557.029901] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 1557.038270] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1557.046182] bridge0: port 1(bridge_slave_0) entered blocking state [ 1557.052557] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1557.059638] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 1557.067754] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1557.087890] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 1557.096378] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 1557.109390] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1557.121175] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1557.127854] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1557.134809] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 1557.142564] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1557.150171] bridge0: port 2(bridge_slave_1) entered blocking state [ 1557.156600] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1557.213787] device hsr_slave_0 entered promiscuous mode [ 1557.250359] device hsr_slave_1 entered promiscuous mode [ 1557.291129] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1557.298441] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1557.307121] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1557.317197] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 1557.328390] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1557.348499] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 1557.360576] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 1557.367584] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 1557.376131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 1557.388152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1557.395720] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 1557.413234] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 1557.423033] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1557.429301] 8021q: adding VLAN 0 to HW filter on device team0 [ 1557.436329] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 1557.459216] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 1557.468510] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 1557.479245] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 1557.494590] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 1557.504196] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 1557.512363] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1557.519904] bridge0: port 1(bridge_slave_0) entered blocking state [ 1557.526276] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1557.533544] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 1557.541218] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1557.548635] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 1557.556250] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1557.563867] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 1557.571463] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1557.580918] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 1557.590863] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 1557.599926] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 1557.610709] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 1557.617544] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 1557.624918] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1557.631944] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 1557.639914] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1557.647640] bridge0: port 2(bridge_slave_1) entered blocking state [ 1557.654064] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1557.661373] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 1557.669076] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 1557.677095] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 1557.684853] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1557.693202] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1557.724472] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 1557.741245] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 1557.749000] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1557.757900] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1557.768772] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 1557.779350] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1557.785754] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 1557.797626] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1557.809075] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1557.816121] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1557.822515] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1557.831582] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1557.839146] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 1557.848785] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 1557.858128] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 1557.867257] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 1557.874970] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1557.882679] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 1557.890348] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1557.897685] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 1557.904707] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1557.913875] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1557.920959] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1557.934339] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 1557.941660] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1557.947737] 8021q: adding VLAN 0 to HW filter on device team0 [ 1557.957442] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1557.967447] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 1557.975145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 1557.984099] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1557.991335] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1557.998023] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1558.008466] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1558.015035] 8021q: adding VLAN 0 to HW filter on device team0 [ 1558.023435] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 1558.033554] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1558.041494] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 1558.048471] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 1558.060301] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 1558.067298] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 1558.075682] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1558.083377] bridge0: port 1(bridge_slave_0) entered blocking state [ 1558.089745] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1558.096617] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1558.103615] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1558.110448] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 1558.118095] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1558.125832] bridge0: port 1(bridge_slave_0) entered blocking state [ 1558.132203] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1558.138981] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 1558.147115] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1558.154900] bridge0: port 2(bridge_slave_1) entered blocking state [ 1558.161279] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1558.170573] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 1558.181074] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1558.191097] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 1558.205663] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 1558.215436] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1558.222563] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 1558.229610] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 1558.236829] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 1558.244561] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1558.252700] bridge0: port 2(bridge_slave_1) entered blocking state [ 1558.259037] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1558.266391] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 1558.274269] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 1558.283815] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 1558.292706] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 1558.299973] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 1558.308794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 1558.317822] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1558.331807] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 1558.342155] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 1558.348968] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1558.356509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 1558.364613] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 1558.372672] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1558.384046] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 1558.394724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 1558.409467] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1558.417568] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready 2019/12/27 16:20:07 executed programs: 15 [ 1558.435005] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 1558.444348] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 1558.460276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 1558.467847] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1558.478917] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 1558.487971] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1558.502728] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 1558.522345] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 1558.529553] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 1558.537626] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1558.545090] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 1558.553359] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1558.565422] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 1558.573663] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1558.579651] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1558.586688] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 1558.594541] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1558.603627] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1558.609752] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1558.627916] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1558.638068] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 1558.644726] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1558.655070] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1558.667426] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1558.684362] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1558.694371] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 1558.705768] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1558.714009] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1558.742814] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1560.101689] hrtimer: interrupt took 30206 ns [ 1665.270021] INFO: rcu_preempt self-detected stall on CPU [ 1665.275606] 1-...: (10500 ticks this GP) idle=eae/140000000000002/0 softirq=22172/22172 fqs=5 [ 1665.285215] (t=10500 jiffies g=1552 c=1551 q=1001) [ 1665.290323] rcu_preempt kthread starved for 10488 jiffies! g1552 c1551 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 [ 1665.300802] rcu_preempt R running task 29776 8 2 0x80000000 [ 1665.308239] Call Trace: [ 1665.310895] __schedule+0x7b8/0x1cd0 [ 1665.314613] ? firmware_map_remove+0x196/0x196 [ 1665.319195] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 1665.324302] schedule+0x92/0x1c0 [ 1665.327665] schedule_timeout+0x43e/0xe10 [ 1665.331812] ? usleep_range+0x130/0x130 [ 1665.335784] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 1665.340984] ? prepare_to_swait+0xcc/0x100 [ 1665.345249] ? call_timer_fn+0x670/0x670 [ 1665.349368] rcu_gp_kthread+0xbf4/0x1ec0 [ 1665.353448] ? force_qs_rnp+0x4d0/0x4d0 [ 1665.357459] kthread+0x319/0x430 [ 1665.360830] ? force_qs_rnp+0x4d0/0x4d0 [ 1665.364801] ? kthread_create_on_node+0xd0/0xd0 [ 1665.369475] ret_from_fork+0x24/0x30 [ 1665.373324] NMI backtrace for cpu 1 [ 1665.377149] CPU: 1 PID: 7324 Comm: syz-executor.4 Not tainted 4.14.160-syzkaller #0 [ 1665.385284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1665.394635] Call Trace: [ 1665.397280] [ 1665.399461] dump_stack+0x142/0x197 [ 1665.403116] nmi_cpu_backtrace.cold+0x57/0x94 [ 1665.407611] ? irq_force_complete_move.cold+0x7d/0x7d [ 1665.412822] nmi_trigger_cpumask_backtrace+0x141/0x189 [ 1665.418099] arch_trigger_cpumask_backtrace+0x14/0x20 [ 1665.423284] rcu_dump_cpu_stacks+0x186/0x1d2 [ 1665.427698] rcu_check_callbacks.cold+0x43d/0xd0a [ 1665.432535] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 1665.438011] update_process_times+0x31/0x70 [ 1665.442402] tick_sched_handle+0x85/0x160 [ 1665.446549] tick_sched_timer+0x43/0x130 [ 1665.450607] __hrtimer_run_queues+0x270/0xbc0 [ 1665.455121] ? tick_sched_do_timer+0xe0/0xe0 [ 1665.459614] ? hrtimer_start_range_ns+0x10d0/0x10d0 [ 1665.464653] hrtimer_interrupt+0x1d8/0x5d0 [ 1665.468949] smp_apic_timer_interrupt+0x11c/0x5e0 [ 1665.473791] apic_timer_interrupt+0x96/0xa0 [ 1665.478100] RIP: 0010:update_stack_state+0x41c/0x590 [ 1665.483180] RSP: 0000:ffff8880aed07040 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 [ 1665.490869] RAX: dffffc0000000000 RBX: ffff8880aed076d0 RCX: 1ffff11015da0edb [ 1665.498166] RDX: 0000000000000010 RSI: 1ffff11015da0e00 RDI: ffff8880aed071d8 [ 1665.505421] RBP: ffff8880aed070e8 R08: 0000000000000001 R09: ffff8880aed07208 [ 1665.512673] R10: ffff8880aed071d8 R11: ffff8880aed071e8 R12: ffffffff814e71c5 [ 1665.519931] R13: ffff8880aed071b0 R14: 1ffff11015da0e10 R15: ffff8880aed071f0 [ 1665.527193] ? __call_rcu.constprop.0+0x35/0x820 [ 1665.531941] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 1665.537819] ? unwind_next_frame.part.0+0x188/0x8b0 [ 1665.542813] unwind_next_frame.part.0+0x188/0x8b0 [ 1665.547662] ? unwind_dump+0xe0/0xe0 [ 1665.551363] ? unwind_dump+0xe0/0xe0 [ 1665.555058] ? __unwind_start+0x1f6/0x3d0 [ 1665.559185] unwind_next_frame+0x3b/0x50 [ 1665.563226] __save_stack_trace+0x6b/0xd0 [ 1665.567415] ? debug_object_activate+0x274/0x450 [ 1665.572152] save_stack_trace+0x16/0x20 [ 1665.576133] save_stack+0x45/0xd0 [ 1665.579567] ? save_stack_trace+0x16/0x20 [ 1665.583693] ? save_stack+0x45/0xd0 [ 1665.587324] ? kasan_kmalloc+0xce/0xf0 [ 1665.591195] ? kasan_slab_alloc+0xf/0x20 [ 1665.595250] ? kmem_cache_alloc+0x12e/0x780 [ 1665.599548] ? __debug_object_init+0x5b8/0x8e0 [ 1665.604129] ? debug_object_activate+0x274/0x450 [ 1665.608867] ? __call_rcu.constprop.0+0x35/0x820 [ 1665.613615] ? call_rcu+0x12/0x20 [ 1665.617074] ? dst_release+0x5c/0x80 [ 1665.620778] ? __dev_queue_xmit+0x17e1/0x25e0 [ 1665.625253] ? dev_queue_xmit+0x18/0x20 [ 1665.629234] ? ip6_finish_output2+0x10bd/0x21b0 [ 1665.634419] ? ip6_finish_output+0x4f4/0xb50 [ 1665.638819] ? ip6_output+0x20f/0x6d0 [ 1665.645139] ? ndisc_send_skb+0xb56/0x11e0 [ 1665.649353] ? ndisc_send_rs+0x12b/0x670 [ 1665.653394] ? addrconf_rs_timer+0x289/0x5a0 [ 1665.657787] ? call_timer_fn+0x161/0x670 [ 1665.661886] ? run_timer_softirq+0x5b7/0x1520 [ 1665.666365] ? __do_softirq+0x244/0x9a0 [ 1665.670352] ? irq_exit+0x160/0x1b0 [ 1665.673958] ? smp_apic_timer_interrupt+0x146/0x5e0 [ 1665.678955] ? apic_timer_interrupt+0x96/0xa0 [ 1665.683463] ? kill_fasync+0x26c/0x3d0 [ 1665.687376] ? lock_downgrade+0x740/0x740 [ 1665.691507] ? mark_held_locks+0xb1/0x100 [ 1665.695635] ? kasan_unpoison_shadow+0x35/0x50 [ 1665.700214] kasan_kmalloc+0xce/0xf0 [ 1665.703912] kasan_slab_alloc+0xf/0x20 [ 1665.707777] kmem_cache_alloc+0x12e/0x780 [ 1665.711993] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1665.716733] __debug_object_init+0x5b8/0x8e0 [ 1665.721138] ? debug_object_destroy+0x250/0x250 [ 1665.725813] ? _raw_spin_unlock_irqrestore+0x95/0xe0 [ 1665.730952] debug_object_activate+0x274/0x450 [ 1665.735518] ? mark_held_locks+0xb1/0x100 [ 1665.739661] ? check_preemption_disabled+0x3c/0x250 [ 1665.744699] ? debug_object_free+0x3f0/0x3f0 [ 1665.749090] ? trace_hardirqs_on_caller+0x19b/0x590 [ 1665.754115] ? dst_destroy+0x330/0x330 [ 1665.758010] __call_rcu.constprop.0+0x35/0x820 [ 1665.762576] ? check_preemption_disabled+0x3c/0x250 [ 1665.767585] ? check_preemption_disabled+0x3c/0x250 [ 1665.772584] call_rcu+0x12/0x20 [ 1665.775871] dst_release+0x5c/0x80 [ 1665.779410] __dev_queue_xmit+0x17e1/0x25e0 [ 1665.783714] ? mark_held_locks+0xb1/0x100 [ 1665.787845] ? netdev_pick_tx+0x300/0x300 [ 1665.791987] ? find_held_lock+0x35/0x130 [ 1665.796042] ? ip6_finish_output+0x4f4/0xb50 [ 1665.800435] ? mark_held_locks+0xb1/0x100 [ 1665.804563] dev_queue_xmit+0x18/0x20 [ 1665.808360] ? dev_queue_xmit+0x18/0x20 [ 1665.812313] ip6_finish_output2+0x10bd/0x21b0 [ 1665.816894] ? ip6_forward_finish+0x480/0x480 [ 1665.821369] ? lock_downgrade+0x740/0x740 [ 1665.825502] ip6_finish_output+0x4f4/0xb50 [ 1665.829716] ? ip6_finish_output+0x4f4/0xb50 [ 1665.834105] ip6_output+0x20f/0x6d0 [ 1665.837712] ? ip6_finish_output+0xb50/0xb50 [ 1665.842099] ? ip6_fragment+0x32c0/0x32c0 [ 1665.846224] ? ip6_output+0x1/0x6d0 [ 1665.849845] ndisc_send_skb+0xb56/0x11e0 [ 1665.853891] ? ndisc_error_report+0x190/0x190 [ 1665.858429] ? __alloc_skb+0x3ee/0x500 [ 1665.862303] ? __ndisc_fill_addr_option+0xf0/0x120 [ 1665.867214] ndisc_send_rs+0x12b/0x670 [ 1665.871084] addrconf_rs_timer+0x289/0x5a0 [ 1665.875302] ? __lock_is_held+0xb6/0x140 [ 1665.879346] ? check_preemption_disabled+0x3c/0x250 [ 1665.884341] ? ipv6_get_lladdr+0x3e0/0x3e0 [ 1665.888576] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 1665.894006] call_timer_fn+0x161/0x670 [ 1665.897877] ? ipv6_get_lladdr+0x3e0/0x3e0 [ 1665.902101] ? __next_timer_interrupt+0x140/0x140 [ 1665.906926] ? trace_hardirqs_on_caller+0x19b/0x590 [ 1665.912023] run_timer_softirq+0x5b7/0x1520 [ 1665.916337] ? ipv6_get_lladdr+0x3e0/0x3e0 [ 1665.920567] ? add_timer+0xae0/0xae0 [ 1665.924271] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 1665.929702] __do_softirq+0x244/0x9a0 [ 1665.933486] ? sched_clock+0x2e/0x50 [ 1665.937206] irq_exit+0x160/0x1b0 [ 1665.940650] smp_apic_timer_interrupt+0x146/0x5e0 [ 1665.945486] apic_timer_interrupt+0x96/0xa0 [ 1665.949787] [ 1665.952015] RIP: 0033:0x45a919 [ 1665.955186] RSP: 002b:00007ff67ae4ec78 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 [ 1665.962886] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 000000000045a919 [ 1665.970149] RDX: 0000000000002000 RSI: 0000000000000004 RDI: 0000000000000003 [ 1665.977409] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 1665.984673] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff67ae4f6d4 [ 1665.991924] R13: 00000000004c13f1 R14: 00000000004d5498 R15: 00000000ffffffff [ 1665.999478] INFO: rcu_sched detected stalls on CPUs/tasks: [ 1666.005129] 0-...: (1 GPs behind) idle=b76/140000000000001/0 softirq=11940/11945 fqs=0 [ 1666.013363] 1-...: (0 ticks this GP) idle=eae/140000000000000/0 softirq=22173/22173 fqs=0 [ 1666.021845] (detected by 0, t=0 jiffies, g=937, c=936, q=20) [ 1666.027739] NMI backtrace for cpu 0 [ 1666.031362] CPU: 0 PID: 8 Comm: rcu_preempt Not tainted 4.14.160-syzkaller #0 [ 1666.038961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1666.048303] Call Trace: [ 1666.050875] [ 1666.053015] dump_stack+0x142/0x197 [ 1666.056627] nmi_cpu_backtrace.cold+0x57/0x94 [ 1666.061144] ? irq_force_complete_move.cold+0x7d/0x7d [ 1666.066363] nmi_trigger_cpumask_backtrace+0x141/0x189 [ 1666.071625] arch_trigger_cpumask_backtrace+0x14/0x20 [ 1666.076804] rcu_dump_cpu_stacks+0x186/0x1d2 [ 1666.081201] rcu_check_callbacks.cold+0x744/0xd0a [ 1666.086036] update_process_times+0x31/0x70 [ 1666.090379] tick_sched_handle+0x85/0x160 [ 1666.094520] tick_sched_timer+0x43/0x130 [ 1666.098568] __hrtimer_run_queues+0x270/0xbc0 [ 1666.103066] ? tick_sched_do_timer+0xe0/0xe0 [ 1666.107547] ? hrtimer_start_range_ns+0x10d0/0x10d0 [ 1666.112568] hrtimer_interrupt+0x1d8/0x5d0 [ 1666.116797] smp_apic_timer_interrupt+0x11c/0x5e0 [ 1666.121683] apic_timer_interrupt+0x96/0xa0 [ 1666.125985] [ 1666.128206] RIP: 0010:_raw_spin_unlock_irqrestore+0x95/0xe0 [ 1666.133905] RSP: 0018:ffff8880a9cffca8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10 [ 1666.141608] RAX: 1ffffffff0fe2d29 RBX: 0000000000000282 RCX: 0000000000000000 [ 1666.148867] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000282 [ 1666.156150] RBP: ffff8880a9cffcb8 R08: ffff8880a9cf4200 R09: 0000000000000000 [ 1666.163404] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87f8ac40 [ 1666.170713] R13: ffffffff87f8ac88 R14: ffffffff87f8ac40 R15: dffffc0000000000 [ 1666.178134] force_qs_rnp+0xc0/0x4d0 [ 1666.181832] ? trace_hardirqs_on_caller+0x400/0x590 [ 1666.186880] ? rcu_lockdep_current_cpu_online+0x140/0x140 [ 1666.192413] rcu_gp_kthread+0xe91/0x1ec0 [ 1666.196468] ? force_qs_rnp+0x4d0/0x4d0 [ 1666.200470] kthread+0x319/0x430 [ 1666.203817] ? force_qs_rnp+0x4d0/0x4d0 [ 1666.207782] ? kthread_create_on_node+0xd0/0xd0 [ 1666.212444] ret_from_fork+0x24/0x30 [ 1666.216162] Sending NMI from CPU 0 to CPUs 1: 2019/12/27 16:21:55 executed programs: 37 [ 1666.221766] NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff8665031d 2019/12/27 16:22:03 executed programs: 38 2019/12/27 16:22:03 result: hanged=false err=executor 2: failed to write control pipe: write |1: broken pipe 2019/12/27 16:22:03 result: hanged=false err=executor 1: failed to write control pipe: write |1: broken pipe 2019/12/27 16:22:03 result: hanged=false err=executor 3: failed to write control pipe: write |1: broken pipe 2019/12/27 16:22:03 result: hanged=false err=executor 0: failed to write control pipe: write |1: broken pipe 2019/12/27 16:22:03 result: hanged=false err=executor 4: failed to write control pipe: write |1: broken pipe 2019/12/27 16:22:03 result: hanged=false err=executor 5: failed to write control pipe: write |1: broken pipe [ 1675.231186] device bridge_slave_1 left promiscuous mode [ 1675.237089] bridge0: port 2(bridge_slave_1) entered disabled state