[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 38.999978] random: sshd: uninitialized urandom read (32 bytes read) [ 39.203359] kauditd_printk_skb: 9 callbacks suppressed [ 39.203366] audit: type=1400 audit(1576929389.401:35): avc: denied { map } for pid=7066 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 [ 39.245501] random: sshd: uninitialized urandom read (32 bytes read) [ 39.779033] random: sshd: uninitialized urandom read (32 bytes read) [ 845.371030] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.74' (ECDSA) to the list of known hosts. [ 850.838794] random: sshd: uninitialized urandom read (32 bytes read) [ 851.027237] audit: type=1400 audit(1576930201.221:36): avc: denied { map } for pid=7079 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 2019/12/21 12:10:01 parsed 1 programs [ 851.908162] random: cc1: uninitialized urandom read (8 bytes read) 2019/12/21 12:10:03 executed programs: 0 [ 853.023163] audit: type=1400 audit(1576930203.221:37): avc: denied { map } for pid=7079 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=67 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 853.069388] audit: type=1400 audit(1576930203.261:38): avc: denied { map } for pid=7079 comm="syz-execprog" path="/root/syzkaller-shm333822414" 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 [ 853.340973] IPVS: ftp: loaded support on port[0] = 21 [ 854.248905] chnl_net:caif_netlink_parms(): no params data found [ 854.279828] bridge0: port 1(bridge_slave_0) entered blocking state [ 854.286671] bridge0: port 1(bridge_slave_0) entered disabled state [ 854.293858] device bridge_slave_0 entered promiscuous mode [ 854.301274] bridge0: port 2(bridge_slave_1) entered blocking state [ 854.301894] IPVS: ftp: loaded support on port[0] = 21 [ 854.307812] bridge0: port 2(bridge_slave_1) entered disabled state [ 854.320466] device bridge_slave_1 entered promiscuous mode [ 854.344908] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 854.357465] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 854.380840] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 854.388107] team0: Port device team_slave_0 added [ 854.395467] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 854.402526] team0: Port device team_slave_1 added [ 854.408029] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 854.417513] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 854.461627] IPVS: ftp: loaded support on port[0] = 21 [ 854.472001] device hsr_slave_0 entered promiscuous mode [ 854.510308] device hsr_slave_1 entered promiscuous mode [ 854.581557] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 854.588707] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 854.651620] bridge0: port 2(bridge_slave_1) entered blocking state [ 854.658053] bridge0: port 2(bridge_slave_1) entered forwarding state [ 854.664911] bridge0: port 1(bridge_slave_0) entered blocking state [ 854.671287] bridge0: port 1(bridge_slave_0) entered forwarding state [ 854.684521] chnl_net:caif_netlink_parms(): no params data found [ 854.733695] bridge0: port 1(bridge_slave_0) entered blocking state [ 854.740343] bridge0: port 1(bridge_slave_0) entered disabled state [ 854.747296] device bridge_slave_0 entered promiscuous mode [ 854.754475] bridge0: port 2(bridge_slave_1) entered blocking state [ 854.761805] bridge0: port 2(bridge_slave_1) entered disabled state [ 854.768632] device bridge_slave_1 entered promiscuous mode [ 854.775579] IPVS: ftp: loaded support on port[0] = 21 [ 854.835848] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 854.845321] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 854.863039] chnl_net:caif_netlink_parms(): no params data found [ 854.892000] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 854.899279] team0: Port device team_slave_0 added [ 854.917356] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 854.924871] team0: Port device team_slave_1 added [ 854.941557] IPVS: ftp: loaded support on port[0] = 21 [ 854.945802] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 854.953257] 8021q: adding VLAN 0 to HW filter on device bond0 [ 854.963419] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 854.987943] bridge0: port 1(bridge_slave_0) entered blocking state [ 854.995109] bridge0: port 1(bridge_slave_0) entered disabled state [ 855.002099] device bridge_slave_0 entered promiscuous mode [ 855.012756] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 855.021320] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 855.027536] bridge0: port 2(bridge_slave_1) entered blocking state [ 855.034329] bridge0: port 2(bridge_slave_1) entered disabled state [ 855.041538] device bridge_slave_1 entered promiscuous mode [ 855.077894] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 855.087860] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 855.143033] device hsr_slave_0 entered promiscuous mode [ 855.180385] device hsr_slave_1 entered promiscuous mode [ 855.236354] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 855.243968] team0: Port device team_slave_0 added [ 855.249419] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 855.257813] bridge0: port 1(bridge_slave_0) entered disabled state [ 855.274959] bridge0: port 2(bridge_slave_1) entered disabled state [ 855.282119] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 855.291115] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 855.319118] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 855.328390] team0: Port device team_slave_1 added [ 855.334087] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 855.356995] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 855.363828] 8021q: adding VLAN 0 to HW filter on device team0 [ 855.370296] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 855.387568] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 855.398816] IPVS: ftp: loaded support on port[0] = 21 [ 855.412829] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 855.426442] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 855.446393] chnl_net:caif_netlink_parms(): no params data found [ 855.454432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 855.463678] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 855.471499] bridge0: port 1(bridge_slave_0) entered blocking state [ 855.477869] bridge0: port 1(bridge_slave_0) entered forwarding state [ 855.533104] device hsr_slave_0 entered promiscuous mode [ 855.610310] device hsr_slave_1 entered promiscuous mode [ 855.682360] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 855.690719] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 855.725361] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 855.733392] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 855.741116] bridge0: port 2(bridge_slave_1) entered blocking state [ 855.747468] bridge0: port 2(bridge_slave_1) entered forwarding state [ 855.758878] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 855.766346] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 855.803101] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 855.829502] bridge0: port 1(bridge_slave_0) entered blocking state [ 855.837232] bridge0: port 1(bridge_slave_0) entered disabled state [ 855.844129] device bridge_slave_0 entered promiscuous mode [ 855.863876] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 855.871095] bridge0: port 2(bridge_slave_1) entered blocking state [ 855.877445] bridge0: port 2(bridge_slave_1) entered disabled state [ 855.885287] device bridge_slave_1 entered promiscuous mode [ 855.897083] chnl_net:caif_netlink_parms(): no params data found [ 855.907006] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 855.925397] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 855.941453] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 855.958257] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 855.968861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 855.976544] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 855.984298] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 855.993778] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 856.033714] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 856.044019] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 856.052396] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 856.059458] team0: Port device team_slave_0 added [ 856.065427] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 856.072635] team0: Port device team_slave_1 added [ 856.077683] bridge0: port 1(bridge_slave_0) entered blocking state [ 856.084516] bridge0: port 1(bridge_slave_0) entered disabled state [ 856.091665] device bridge_slave_0 entered promiscuous mode [ 856.098281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 856.106181] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 856.114116] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 856.121621] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 856.141346] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 856.175902] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 856.183035] bridge0: port 2(bridge_slave_1) entered blocking state [ 856.189412] bridge0: port 2(bridge_slave_1) entered disabled state [ 856.198234] device bridge_slave_1 entered promiscuous mode [ 856.206913] 8021q: adding VLAN 0 to HW filter on device bond0 [ 856.214033] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 856.221680] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 856.242294] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 856.262351] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 856.268373] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 856.292842] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 856.305463] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 856.315199] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 856.353625] device hsr_slave_0 entered promiscuous mode [ 856.400308] device hsr_slave_1 entered promiscuous mode [ 856.442759] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 856.455950] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 856.466719] chnl_net:caif_netlink_parms(): no params data found [ 856.479718] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 856.487782] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 856.495016] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 856.509430] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 856.517294] 8021q: adding VLAN 0 to HW filter on device team0 [ 856.529814] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 856.536604] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 856.543723] team0: Port device team_slave_0 added [ 856.549894] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 856.569327] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 856.577832] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 856.585072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 856.592977] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 856.603153] bridge0: port 1(bridge_slave_0) entered blocking state [ 856.609527] bridge0: port 1(bridge_slave_0) entered forwarding state [ 856.616442] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 856.623662] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 856.630440] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 856.637593] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 856.644925] team0: Port device team_slave_1 added [ 856.650512] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 856.658059] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 856.685081] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 856.694073] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 856.701998] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 856.709504] bridge0: port 2(bridge_slave_1) entered blocking state [ 856.715863] bridge0: port 2(bridge_slave_1) entered forwarding state [ 856.772176] device hsr_slave_0 entered promiscuous mode [ 856.810391] device hsr_slave_1 entered promiscuous mode [ 856.860493] bridge0: port 1(bridge_slave_0) entered blocking state [ 856.866860] bridge0: port 1(bridge_slave_0) entered disabled state [ 856.874101] device bridge_slave_0 entered promiscuous mode [ 856.882052] 8021q: adding VLAN 0 to HW filter on device bond0 [ 856.888108] bridge0: port 2(bridge_slave_1) entered blocking state [ 856.894485] bridge0: port 2(bridge_slave_1) entered disabled state [ 856.901789] device bridge_slave_1 entered promiscuous mode [ 856.914160] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 856.925390] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 856.934778] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 856.951674] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 856.964087] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 856.971611] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 856.982136] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 856.991209] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 856.998693] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 857.009246] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 857.021450] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 857.028247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 857.035715] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 857.043819] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 857.051874] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 857.059367] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 857.068736] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 857.092455] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 857.109737] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 857.116975] 8021q: adding VLAN 0 to HW filter on device team0 [ 857.126320] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 857.135934] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 857.144240] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 857.151570] team0: Port device team_slave_0 added [ 857.157216] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 857.164543] team0: Port device team_slave_1 added [ 857.170657] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 857.178835] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 857.187393] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 857.198398] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 857.215698] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 857.225653] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 857.233931] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 857.241692] bridge0: port 1(bridge_slave_0) entered blocking state [ 857.248046] bridge0: port 1(bridge_slave_0) entered forwarding state [ 857.255272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 857.263542] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 857.273202] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 857.283652] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 857.292942] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 857.303664] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 857.309671] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 857.328858] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 857.336915] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 857.348303] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 857.348629] bridge0: port 2(bridge_slave_1) entered blocking state [ 857.348654] bridge0: port 2(bridge_slave_1) entered forwarding state [ 857.348938] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 857.349240] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 857.355386] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 857.358093] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 857.373492] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 857.373969] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 857.377050] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 857.378605] 8021q: adding VLAN 0 to HW filter on device bond0 [ 857.503239] device hsr_slave_0 entered promiscuous mode [ 857.550325] device hsr_slave_1 entered promiscuous mode [ 857.591332] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 857.591907] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 857.593424] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 857.593655] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 857.594137] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 857.597804] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 857.598774] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 857.600199] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 857.602562] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 857.608530] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 857.608929] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 857.609220] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 857.609509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 857.609731] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 857.610000] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 857.610350] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 857.618678] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 857.619472] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 857.623425] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 857.623431] 8021q: adding VLAN 0 to HW filter on device team0 [ 857.625840] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 857.627233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 857.627593] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 857.627869] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 857.628098] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 857.628294] bridge0: port 1(bridge_slave_0) entered blocking state [ 857.628313] bridge0: port 1(bridge_slave_0) entered forwarding state [ 857.628968] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 857.629019] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 857.629353] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 857.629411] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 857.633788] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 857.633846] kobject: 'vlan0' (ffff8880a9f87800): kobject_add_internal: parent: 'mesh', set: '' [ 857.634777] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 857.634798] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 857.649998] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 857.652458] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 857.665074] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 857.665145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 857.665491] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 857.665687] bridge0: port 2(bridge_slave_1) entered blocking state [ 857.665706] bridge0: port 2(bridge_slave_1) entered forwarding state [ 857.666016] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 857.666495] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 857.674446] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 857.678127] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 857.679065] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 857.679767] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 857.693031] 8021q: adding VLAN 0 to HW filter on device bond0 [ 857.697715] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 857.699589] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 857.704434] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 857.704480] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 857.704552] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 857.704613] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 857.705089] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 857.714899] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 857.717041] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 857.721336] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 857.721694] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 857.729046] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 857.729117] kobject: 'vlan0' (ffff88808e669d80): kobject_add_internal: parent: 'mesh', set: '' [ 857.732224] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 857.733257] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 857.733298] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 857.733660] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 857.733968] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 857.734275] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 857.745687] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 857.745714] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 857.752234] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 857.752242] 8021q: adding VLAN 0 to HW filter on device team0 [ 857.773388] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 857.778715] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 857.779066] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 857.779354] bridge0: port 1(bridge_slave_0) entered blocking state [ 857.779387] bridge0: port 1(bridge_slave_0) entered forwarding state [ 857.779825] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 857.785406] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 857.787619] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 857.790328] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 857.790680] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 857.790945] bridge0: port 2(bridge_slave_1) entered blocking state [ 857.790971] bridge0: port 2(bridge_slave_1) entered forwarding state [ 857.794652] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 857.795521] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 857.796222] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 857.796738] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 857.796806] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 857.805723] 8021q: adding VLAN 0 to HW filter on device bond0 [ 857.812856] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 857.813693] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 857.819583] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 857.825385] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 857.826096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 857.826577] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 857.827078] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 857.836029] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 857.836097] kobject: 'vlan0' (ffff888093c08480): kobject_add_internal: parent: 'mesh', set: '' [ 857.837612] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 857.838525] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 857.838976] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 857.839343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 857.839691] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 857.840360] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 857.843070] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 857.845934] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 857.849129] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 857.849161] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 857.852821] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 857.854383] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 857.854389] 8021q: adding VLAN 0 to HW filter on device team0 [ 857.854567] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 857.854882] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 857.855330] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 857.855614] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 857.856016] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 857.867126] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 857.869144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 857.869462] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 857.869730] bridge0: port 1(bridge_slave_0) entered blocking state [ 857.869755] bridge0: port 1(bridge_slave_0) entered forwarding state [ 857.870357] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 857.885339] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 857.886423] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 857.886744] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 857.886991] bridge0: port 2(bridge_slave_1) entered blocking state [ 857.887020] bridge0: port 2(bridge_slave_1) entered forwarding state [ 857.889383] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 857.906267] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 857.907096] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 857.907417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 857.907921] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 857.907988] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 857.919470] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 857.928024] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 857.928094] kobject: 'vlan0' (ffff88808570c380): kobject_add_internal: parent: 'mesh', set: '' [ 857.928300] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 857.933087] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 857.933142] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 857.933574] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 857.934192] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 857.946060] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 857.950949] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 857.951397] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 857.956032] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 857.956081] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 857.956464] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 857.964359] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 857.973121] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 857.973152] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 857.984558] kobject: 'loop4' (ffff8880a41455e0): kobject_uevent_env [ 857.984589] kobject: 'loop4' (ffff8880a41455e0): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 858.009626] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 858.017110] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 858.017161] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 858.017234] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 858.031630] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 858.031703] kobject: 'vlan0' (ffff8880999e3300): kobject_add_internal: parent: 'mesh', set: '' [ 858.384494] kobject: 'loop2' (ffff8880a40bd4e0): kobject_uevent_env [ 858.384527] kobject: 'loop2' (ffff8880a40bd4e0): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 858.826375] kobject: 'loop5' (ffff8880a41c2520): kobject_uevent_env [ 858.826403] kobject: 'loop5' (ffff8880a41c2520): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 859.214535] kobject: 'loop0' (ffff8880a40262e0): kobject_uevent_env [ 859.214563] kobject: 'loop0' (ffff8880a40262e0): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 859.235006] kobject: 'loop1' (ffff8880a4080be0): kobject_uevent_env [ 859.235034] kobject: 'loop1' (ffff8880a4080be0): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 1001.431345] INFO: task syz-executor.4:7170 blocked for more than 140 seconds. [ 1001.431354] Not tainted 4.14.160-syzkaller #0 [ 1001.431357] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1001.431362] syz-executor.4 D29248 7170 7102 0x00000004 [ 1001.431444] Call Trace: [ 1001.431525] __schedule+0x7b8/0x1cd0 [ 1001.431533] ? __mutex_lock+0x737/0x1470 [ 1001.431545] ? firmware_map_remove+0x196/0x196 [ 1001.431557] schedule+0x92/0x1c0 [ 1001.431566] schedule_preempt_disabled+0x13/0x20 [ 1001.431574] __mutex_lock+0x73c/0x1470 [ 1001.431628] ? fb_open+0xb7/0x420 [ 1001.431640] ? mutex_trylock+0x1c0/0x1c0 [ 1001.431650] ? __mutex_unlock_slowpath+0x71/0x800 [ 1001.431679] ? find_held_lock+0x35/0x130 [ 1001.431697] mutex_lock_nested+0x16/0x20 [ 1001.431704] ? mutex_lock_nested+0x16/0x20 [ 1001.431711] fb_open+0xb7/0x420 [ 1001.431721] ? get_fb_info.part.0+0x80/0x80 [ 1001.431747] chrdev_open+0x207/0x590 [ 1001.431757] ? cdev_put.part.0+0x50/0x50 [ 1001.431803] ? security_file_open+0x89/0x190 [ 1001.431831] do_dentry_open+0x73b/0xeb0 [ 1001.431841] ? cdev_put.part.0+0x50/0x50 [ 1001.431854] vfs_open+0x105/0x220 [ 1001.431871] path_openat+0x8bd/0x3f70 [ 1001.431879] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1001.431891] ? trace_hardirqs_on+0x10/0x10 [ 1001.431907] ? path_lookupat.isra.0+0x7b0/0x7b0 [ 1001.431914] ? __lock_is_held+0xb6/0x140 [ 1001.431931] ? save_trace+0x290/0x290 [ 1001.431961] ? __alloc_fd+0x1d4/0x4a0 [ 1001.431971] do_filp_open+0x18e/0x250 [ 1001.431978] ? __alloc_fd+0x1d4/0x4a0 [ 1001.431987] ? may_open_dev+0xe0/0xe0 [ 1001.432020] ? do_raw_spin_unlock+0x16b/0x260 [ 1001.432029] ? _raw_spin_unlock+0x2d/0x50 [ 1001.432037] ? __alloc_fd+0x1d4/0x4a0 [ 1001.432056] do_sys_open+0x2c5/0x430 [ 1001.432066] ? filp_open+0x70/0x70 [ 1001.432112] ? SyS_clock_gettime+0xf8/0x180 [ 1001.432124] SyS_openat+0x30/0x40 [ 1001.432132] ? SyS_open+0x40/0x40 [ 1001.432143] do_syscall_64+0x1e8/0x640 [ 1001.432150] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 1001.432164] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1001.432171] RIP: 0033:0x45a919 [ 1001.432176] RSP: 002b:00007efcd1633c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 1001.432186] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045a919 [ 1001.432192] RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c [ 1001.432197] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 1001.432202] R10: 0000000000000000 R11: 0000000000000246 R12: 00007efcd16346d4 [ 1001.432207] R13: 00000000004c805c R14: 00000000004df300 R15: 00000000ffffffff [ 1001.432228] [ 1001.432228] Showing all locks held in the system: [ 1001.432237] 1 lock held by khungtaskd/1044: [ 1001.432241] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7f/0x21f [ 1001.432274] 1 lock held by rsyslogd/6932: [ 1001.432277] #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0xab/0xd0 [ 1001.432299] 2 locks held by getty/7054: [ 1001.432302] #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 [ 1001.432321] #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17d0 [ 1001.432383] 2 locks held by getty/7055: [ 1001.432386] #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 [ 1001.432405] #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17d0 [ 1001.432425] 2 locks held by getty/7056: [ 1001.432428] #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 [ 1001.432446] #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17d0 [ 1001.432467] 2 locks held by getty/7057: [ 1001.432470] #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 [ 1001.432488] #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17d0 [ 1001.432509] 2 locks held by getty/7058: [ 1001.432512] #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 [ 1001.432530] #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17d0 [ 1001.432551] 2 locks held by getty/7059: [ 1001.432554] #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 [ 1001.432572] #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17d0 [ 1001.432593] 2 locks held by getty/7060: [ 1001.432596] #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 [ 1001.432614] #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17d0 [ 1001.432637] 1 lock held by syz-executor.4/7170: [ 1001.432640] #0: (&fb_info->lock){+.+.}, at: [] fb_open+0xb7/0x420 [ 1001.432660] 1 lock held by syz-executor.4/7177: [ 1001.432663] #0: (&fb_info->lock){+.+.}, at: [] fb_open+0xb7/0x420 [ 1001.432683] 1 lock held by syz-executor.2/7188: [ 1001.432685] #0: (&fb_info->lock){+.+.}, at: [] fb_open+0xb7/0x420 [ 1001.432705] 1 lock held by syz-executor.2/7189: [ 1001.432708] #0: (&fb_info->lock){+.+.}, at: [] fb_open+0xb7/0x420 [ 1001.432727] 1 lock held by syz-executor.5/7195: [ 1001.432730] #0: (&fb_info->lock){+.+.}, at: [] fb_open+0xb7/0x420 [ 1001.432750] 1 lock held by syz-executor.5/7198: [ 1001.432752] #0: (&fb_info->lock){+.+.}, at: [] fb_open+0xb7/0x420 [ 1001.432772] 1 lock held by syz-executor.0/7201: [ 1001.432775] #0: (&fb_info->lock){+.+.}, at: [] fb_open+0xb7/0x420 [ 1001.432795] 1 lock held by syz-executor.0/7207: [ 1001.432797] #0: (&fb_info->lock){+.+.}, at: [] fb_open+0xb7/0x420 [ 1001.432818] 1 lock held by syz-executor.1/7206: [ 1001.432820] #0: (&fb_info->lock){+.+.}, at: [] fb_open+0xb7/0x420 [ 1001.432840] 1 lock held by syz-executor.1/7208: [ 1001.432843] #0: (&fb_info->lock){+.+.}, at: [] fb_open+0xb7/0x420 [ 1001.432860] [ 1001.432863] ============================================= [ 1001.432863] [ 1001.432868] NMI backtrace for cpu 1 [ 1001.432876] CPU: 1 PID: 1044 Comm: khungtaskd Not tainted 4.14.160-syzkaller #0 [ 1001.432881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1001.432884] Call Trace: [ 1001.432912] dump_stack+0x142/0x197 [ 1001.432947] nmi_cpu_backtrace.cold+0x57/0x94 [ 1001.432958] ? irq_force_complete_move.cold+0x7d/0x7d [ 1001.432967] nmi_trigger_cpumask_backtrace+0x141/0x189 [ 1001.432978] arch_trigger_cpumask_backtrace+0x14/0x20 [ 1001.433002] watchdog+0x5e7/0xb90 [ 1001.433037] kthread+0x319/0x430 [ 1001.433044] ? hungtask_pm_notify+0x50/0x50 [ 1001.433051] ? kthread_create_on_node+0xd0/0xd0 [ 1001.433061] ret_from_fork+0x24/0x30 [ 1001.433078] Sending NMI from CPU 1 to CPUs 0: [ 1001.433431] NMI backtrace for cpu 0 [ 1001.433434] CPU: 0 PID: 7156 Comm: kworker/u4:5 Not tainted 4.14.160-syzkaller #0 [ 1001.433438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1001.433440] Workqueue: bat_events batadv_nc_worker [ 1001.433444] task: ffff8880a8558300 task.stack: ffff8880791d8000 [ 1001.433447] RIP: 0010:mark_lock+0xab/0x1240 [ 1001.433449] RSP: 0018:ffff8880791df9b8 EFLAGS: 00000046 [ 1001.433453] RAX: dffffc0000000000 RBX: ffffffff89618c70 RCX: 1ffff110150ab17e [ 1001.433456] RDX: 1ffffffff12c3194 RSI: ffff8880a8558bd0 RDI: ffffffff89618ca0 [ 1001.433459] RBP: ffff8880791dfa00 R08: 0000000000000001 R09: ffff8880a8558bf0 [ 1001.433462] R10: ffff8880a8558bd0 R11: ffff8880a8558300 R12: ffff8880a8558bd0 [ 1001.433465] R13: 0000000000000004 R14: 0000000000000002 R15: ffff8880a8558300 [ 1001.433468] FS: 0000000000000000(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 [ 1001.433471] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1001.433474] CR2: 00007f9db61e8008 CR3: 00000000a4db0000 CR4: 00000000001406f0 [ 1001.433477] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1001.433480] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1001.433482] Call Trace: [ 1001.433484] ? debug_object_activate+0x1dd/0x450 [ 1001.433486] __lock_acquire+0xbcf/0x4620 [ 1001.433489] ? save_trace+0x290/0x290 [ 1001.433491] ? lock_downgrade+0x740/0x740 [ 1001.433493] ? trace_hardirqs_on+0x10/0x10 [ 1001.433496] ? trace_hardirqs_on+0x10/0x10 [ 1001.433498] ? save_trace+0x290/0x290 [ 1001.433500] ? __lock_acquire+0x5f7/0x4620 [ 1001.433502] ? batadv_nc_purge_paths+0x257/0x360 [ 1001.433504] ? find_held_lock+0x35/0x130 [ 1001.433506] lock_acquire+0x16f/0x430 [ 1001.433508] ? batadv_nc_purge_paths+0xcb/0x360 [ 1001.433510] ? batadv_nc_to_purge_nc_path_coding+0x140/0x140 [ 1001.433512] _raw_spin_lock_bh+0x33/0x50 [ 1001.433515] ? batadv_nc_purge_paths+0xcb/0x360 [ 1001.433517] batadv_nc_purge_paths+0xcb/0x360 [ 1001.433519] ? lock_downgrade+0x740/0x740 [ 1001.433521] batadv_nc_worker+0x270/0x6d0 [ 1001.433523] process_one_work+0x863/0x1600 [ 1001.433525] ? pwq_dec_nr_in_flight+0x2e0/0x2e0 [ 1001.433527] worker_thread+0x5d9/0x1050 [ 1001.433529] kthread+0x319/0x430 [ 1001.433531] ? process_one_work+0x1600/0x1600 [ 1001.433533] ? kthread_create_on_node+0xd0/0xd0 [ 1001.433535] ret_from_fork+0x24/0x30 [ 1001.433537] Code: 50 01 00 00 48 81 eb 50 01 00 00 48 81 c3 80 7a 5a 89 48 8d 7b 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 60 0d 00 00 4c 85 6b 30 0f 84 a8 00 00 00 41 bd 01 00 00 [ 1001.434093] Kernel panic - not syncing: hung_task: blocked tasks [ 1001.434101] CPU: 1 PID: 1044 Comm: khungtaskd Not tainted 4.14.160-syzkaller #0 [ 1001.434105] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1001.434108] Call Trace: [ 1001.434117] dump_stack+0x142/0x197 [ 1001.434149] panic+0x1f9/0x42d [ 1001.434157] ? add_taint.cold+0x16/0x16 [ 1001.434169] ? irq_force_complete_move.cold+0x7d/0x7d [ 1001.434181] watchdog+0x5f8/0xb90 [ 1001.434196] kthread+0x319/0x430 [ 1001.434203] ? hungtask_pm_notify+0x50/0x50 [ 1001.434210] ? kthread_create_on_node+0xd0/0xd0 [ 1001.434219] ret_from_fork+0x24/0x30 [ 1001.435713] Kernel Offset: disabled [ 1003.517170] Rebooting in 86400 seconds..