[ 40.261169] audit: type=1400 audit(1581407335.997:37): avc: denied { map } for pid=6868 comm="syz-fuzzer" path="/root/syzkaller-shm699406032" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 40.520899] IPVS: ftp: loaded support on port[0] = 21 [ 41.630668] can: request_module (can-proto-0) failed. [ 41.640602] can: request_module (can-proto-0) failed. [ 41.802883] audit: type=1400 audit(1581407337.537:38): avc: denied { create } for pid=6868 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 [ 41.826548] audit: type=1400 audit(1581407337.537:39): avc: denied { create } for pid=6868 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 41.850371] audit: type=1400 audit(1581407337.537:40): avc: denied { create } for pid=6868 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 41.969258] random: sshd: uninitialized urandom read (32 bytes read) [ 42.697627] random: sshd: uninitialized urandom read (32 bytes read) [ 42.869750] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.253' (ECDSA) to the list of known hosts. 2020/02/11 07:49:04 parsed 1 programs 2020/02/11 07:49:04 executed programs: 0 [ 49.060934] IPVS: ftp: loaded support on port[0] = 21 [ 49.826740] IPVS: ftp: loaded support on port[0] = 21 [ 49.870335] chnl_net:caif_netlink_parms(): no params data found [ 49.934587] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.941657] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.948835] device bridge_slave_0 entered promiscuous mode [ 49.949407] IPVS: ftp: loaded support on port[0] = 21 [ 49.956139] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.966218] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.973615] device bridge_slave_1 entered promiscuous mode [ 49.985791] chnl_net:caif_netlink_parms(): no params data found [ 50.012520] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 50.023232] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 50.047509] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 50.054966] team0: Port device team_slave_0 added [ 50.064620] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 50.071836] team0: Port device team_slave_1 added [ 50.079016] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 50.096442] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 50.103558] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.109947] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.117338] device bridge_slave_0 entered promiscuous mode [ 50.125619] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.132187] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.139134] device bridge_slave_1 entered promiscuous mode [ 50.211595] IPVS: ftp: loaded support on port[0] = 21 [ 50.212944] device hsr_slave_0 entered promiscuous mode [ 50.260358] device hsr_slave_1 entered promiscuous mode [ 50.305377] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 50.316664] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 50.324647] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 50.332330] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 50.355716] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 50.363191] team0: Port device team_slave_0 added [ 50.374877] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 50.382263] team0: Port device team_slave_1 added [ 50.389440] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 50.407829] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 50.450208] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.456677] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.463702] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.470130] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.512777] device hsr_slave_0 entered promiscuous mode [ 50.580283] device hsr_slave_1 entered promiscuous mode [ 50.622501] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 50.633639] chnl_net:caif_netlink_parms(): no params data found [ 50.644954] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 50.660996] IPVS: ftp: loaded support on port[0] = 21 [ 50.723355] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.729743] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.736610] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.743047] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.752742] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.759122] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.766249] device bridge_slave_0 entered promiscuous mode [ 50.772900] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.779388] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.786406] device bridge_slave_1 entered promiscuous mode [ 50.813764] chnl_net:caif_netlink_parms(): no params data found [ 50.833015] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 50.842416] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 50.876818] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 50.884326] team0: Port device team_slave_0 added [ 50.889918] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.896988] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.904959] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.911829] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.929361] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.936326] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 50.943546] team0: Port device team_slave_1 added [ 50.973680] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.980140] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 50.989812] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.997460] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.004436] device bridge_slave_0 entered promiscuous mode [ 51.011911] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.018290] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.025694] device bridge_slave_1 entered promiscuous mode [ 51.032559] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 51.052839] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 51.061557] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 51.081153] IPVS: ftp: loaded support on port[0] = 21 [ 51.090619] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 51.098774] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.106799] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.153317] device hsr_slave_0 entered promiscuous mode [ 51.190398] device hsr_slave_1 entered promiscuous mode [ 51.260752] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 51.267906] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 51.291184] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 51.297294] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.306701] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 51.319223] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 51.326629] team0: Port device team_slave_0 added [ 51.332820] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.340973] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.348506] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.354992] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.364930] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 51.379398] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 51.386675] team0: Port device team_slave_1 added [ 51.392993] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 51.410995] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.418894] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.426730] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.433147] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.442409] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 51.455932] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 51.466426] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.477157] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 51.488180] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 51.532092] device hsr_slave_0 entered promiscuous mode [ 51.590340] device hsr_slave_1 entered promiscuous mode [ 51.641783] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.686529] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 51.694076] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 51.707793] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 51.714945] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.722905] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.730730] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.737946] chnl_net:caif_netlink_parms(): no params data found [ 51.756984] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.766952] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 51.779563] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 51.793956] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.804027] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.812379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.819908] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.827539] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.835555] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.845200] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.853008] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 51.873334] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 51.885243] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 51.892604] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.908701] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.915285] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.922946] device bridge_slave_0 entered promiscuous mode [ 51.936247] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 51.946245] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.952725] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.959599] device bridge_slave_1 entered promiscuous mode [ 51.971026] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.977886] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.989250] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 51.996185] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.010224] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 52.029178] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 52.044341] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.052267] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.059925] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.066450] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.074502] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 52.085725] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 52.099682] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.108722] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 52.116464] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 52.127703] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.172851] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.181383] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.188988] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.195479] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.209433] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 52.223479] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 52.230971] team0: Port device team_slave_0 added [ 52.236598] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 52.244101] team0: Port device team_slave_1 added [ 52.250713] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 52.257559] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.265227] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 52.275237] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 52.285637] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 52.293175] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 52.301191] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 52.309130] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 52.323369] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 52.329477] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.335871] chnl_net:caif_netlink_parms(): no params data found [ 52.348332] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 52.378120] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 52.387817] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.398583] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.407837] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 52.419129] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 52.452371] device hsr_slave_0 entered promiscuous mode [ 52.490941] device hsr_slave_1 entered promiscuous mode [ 52.550708] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 52.561406] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 52.569121] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.576924] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.584606] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.592659] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.599040] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.607879] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 52.619554] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 52.627253] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 52.637882] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.645359] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 52.652667] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 52.660379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.668235] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.676468] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.684393] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.690782] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.699032] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 52.708118] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 52.723555] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 52.738428] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 52.746206] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.753851] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 52.763042] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 52.771199] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.780654] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 52.789095] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 52.815806] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 52.822767] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 52.830658] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 52.837491] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.848034] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 52.855641] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 52.863930] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.877457] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.887721] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 52.898487] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 52.904825] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.911364] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.917834] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.925939] device bridge_slave_0 entered promiscuous mode [ 52.932702] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.939048] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.946297] device bridge_slave_1 entered promiscuous mode [ 52.954836] ================================================================== [ 52.962327] BUG: KASAN: slab-out-of-bounds in tcf_exts_destroy+0x2b4/0x3b0 [ 52.969337] Read of size 4 at addr ffff888089268bb4 by task syz-executor.1/7002 [ 52.977168] [ 52.978807] CPU: 0 PID: 7002 Comm: syz-executor.1 Not tainted 4.14.170-syzkaller #0 [ 52.986583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.996160] Call Trace: [ 52.998795] dump_stack+0xf7/0x13b [ 53.002338] ? tcf_exts_destroy+0x2b4/0x3b0 [ 53.006760] print_address_description.cold.7+0x9/0x1c9 [ 53.012312] ? tcf_exts_destroy+0x2b4/0x3b0 [ 53.016645] kasan_report.cold.8+0x11a/0x2d3 [ 53.021052] __asan_report_load4_noabort+0x14/0x20 [ 53.025975] tcf_exts_destroy+0x2b4/0x3b0 [ 53.030120] ? tcf_exts_get_dev+0x460/0x460 [ 53.034575] ? tcindex_alloc_perfect_hash+0x4f/0x2e0 [ 53.039795] tcindex_free_perfect_hash.isra.6+0x8e/0x110 [ 53.045355] tcindex_set_parms+0xe11/0x1ae0 [ 53.049725] ? lock_downgrade+0x7f0/0x7f0 [ 53.053868] ? tcindex_alloc_perfect_hash+0x2e0/0x2e0 [ 53.059045] ? avc_has_extended_perms+0x1100/0x1100 [ 53.064055] ? avc_has_extended_perms+0x1100/0x1100 [ 53.069073] tcindex_change+0x1b7/0x24e [ 53.073036] ? tcindex_set_parms+0x1ae0/0x1ae0 [ 53.077608] ? tcindex_set_parms+0x1ae0/0x1ae0 [ 53.082185] tc_ctl_tfilter+0x1151/0x1b2e [ 53.086331] ? do_raw_spin_unlock+0xa0/0x250 [ 53.090736] ? tfilter_notify+0x250/0x250 [ 53.094871] ? mutex_lock_io_nested+0x1380/0x1380 [ 53.099715] ? trace_hardirqs_off+0x10/0x10 [ 53.104040] rtnetlink_rcv_msg+0x34f/0x9d0 [ 53.108272] ? rtnl_bridge_getlink+0x760/0x760 [ 53.112850] ? find_held_lock+0x36/0x1d0 [ 53.117036] netlink_rcv_skb+0x133/0x370 [ 53.121090] ? rtnl_bridge_getlink+0x760/0x760 [ 53.125666] ? netlink_ack+0xa00/0xa00 [ 53.129658] ? netlink_deliver_tap+0x8e/0x920 [ 53.134151] rtnetlink_rcv+0x10/0x20 [ 53.137914] netlink_unicast+0x40d/0x5f0 [ 53.141972] ? netlink_attachskb+0x6e0/0x6e0 [ 53.146386] netlink_sendmsg+0x730/0xbd0 [ 53.150475] ? netlink_unicast+0x5f0/0x5f0 [ 53.154704] ? selinux_socket_sendmsg+0x31/0x40 [ 53.159367] ? security_socket_sendmsg+0x6a/0xa0 [ 53.164281] ? netlink_unicast+0x5f0/0x5f0 [ 53.168525] sock_sendmsg+0xb5/0xf0 [ 53.172143] ___sys_sendmsg+0x282/0x920 [ 53.176110] ? trace_hardirqs_off+0x10/0x10 [ 53.180447] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 53.185218] ? find_held_lock+0x36/0x1d0 [ 53.189360] ? lock_downgrade+0x7f0/0x7f0 [ 53.193501] ? __fget+0x1ca/0x2f0 [ 53.196953] ? trace_hardirqs_on+0x10/0x10 [ 53.201192] ? __fget_light+0x166/0x200 [ 53.205163] ? __fdget+0xe/0x10 [ 53.208431] ? sockfd_lookup_light+0x1c/0x150 [ 53.213168] __sys_sendmmsg+0x126/0x300 [ 53.217138] ? SyS_sendmsg+0x20/0x20 [ 53.220847] ? lock_downgrade+0x7f0/0x7f0 [ 53.224997] ? put_timespec64+0xa4/0xf0 [ 53.228953] ? nsecs_to_jiffies+0x20/0x20 [ 53.233152] ? SyS_clock_gettime+0x115/0x160 [ 53.237549] ? move_addr_to_kernel+0x20/0x20 [ 53.241953] ? do_syscall_64+0x4c/0x5b0 [ 53.245979] ? __sys_sendmmsg+0x300/0x300 [ 53.250123] SyS_sendmmsg+0xd/0x20 [ 53.253764] do_syscall_64+0x1c7/0x5b0 [ 53.257651] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.262503] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 53.267710] RIP: 0033:0x459a59 [ 53.270907] RSP: 002b:00007fcbb22dcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 53.278605] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459a59 [ 53.285929] RDX: 0000000000000332 RSI: 0000000020000140 RDI: 0000000000000008 [ 53.293191] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 53.300468] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcbb22dd6d4 [ 53.307912] R13: 00000000004c74c1 R14: 00000000004dd1c0 R15: 00000000ffffffff [ 53.315182] [ 53.316841] Allocated by task 7002: [ 53.320590] save_stack_trace+0x16/0x20 [ 53.324653] save_stack+0x43/0xd0 [ 53.328204] kasan_kmalloc+0xc7/0xe0 [ 53.331956] __kmalloc+0x15b/0x7b0 [ 53.335486] tcindex_alloc_perfect_hash+0x4f/0x2e0 [ 53.340489] tcindex_set_parms+0x3b8/0x1ae0 [ 53.344801] tcindex_change+0x1b7/0x24e [ 53.348762] tc_ctl_tfilter+0x1151/0x1b2e [ 53.353017] rtnetlink_rcv_msg+0x34f/0x9d0 [ 53.357242] netlink_rcv_skb+0x133/0x370 [ 53.361298] rtnetlink_rcv+0x10/0x20 [ 53.365013] netlink_unicast+0x40d/0x5f0 [ 53.369064] netlink_sendmsg+0x730/0xbd0 [ 53.373124] sock_sendmsg+0xb5/0xf0 [ 53.376745] ___sys_sendmsg+0x282/0x920 [ 53.380720] __sys_sendmmsg+0x126/0x300 [ 53.384688] SyS_sendmmsg+0xd/0x20 [ 53.388294] do_syscall_64+0x1c7/0x5b0 [ 53.392292] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 53.397463] [ 53.399074] Freed by task 0: [ 53.402077] (stack is not available) [ 53.405784] [ 53.407445] The buggy address belongs to the object at ffff888089268b40 [ 53.407445] which belongs to the cache kmalloc-128 of size 128 [ 53.420117] The buggy address is located 116 bytes inside of [ 53.420117] 128-byte region [ffff888089268b40, ffff888089268bc0) [ 53.432040] The buggy address belongs to the page: [ 53.437118] page:ffffea0002249a00 count:1 mapcount:0 mapping:ffff888089268000 index:0x0 [ 53.445420] flags: 0x1fffc0000000100(slab) [ 53.449642] raw: 01fffc0000000100 ffff888089268000 0000000000000000 0000000100000015 [ 53.457600] raw: ffffea00029c4320 ffff8880aa801548 ffff8880aa800640 0000000000000000 [ 53.465470] page dumped because: kasan: bad access detected [ 53.471167] [ 53.472778] Memory state around the buggy address: [ 53.477858] ffff888089268a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 53.485210] ffff888089268b00: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 [ 53.492694] >ffff888089268b80: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc [ 53.500048] ^ [ 53.504976] ffff888089268c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc [ 53.512329] ffff888089268c80: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 [ 53.519819] ================================================================== [ 53.527169] Disabling lock debugging due to kernel taint [ 53.535133] Kernel panic - not syncing: panic_on_warn set ... [ 53.535133] [ 53.542608] CPU: 0 PID: 7002 Comm: syz-executor.1 Tainted: G B 4.14.170-syzkaller #0 [ 53.551603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.560948] Call Trace: [ 53.563585] dump_stack+0xf7/0x13b [ 53.567116] ? tcf_exts_destroy+0x2b4/0x3b0 [ 53.571553] panic+0x1b0/0x358 [ 53.574809] ? add_taint.cold.5+0x11/0x11 [ 53.578950] ? ___preempt_schedule+0x16/0x18 [ 53.583500] ? tcf_exts_destroy+0x2b4/0x3b0 [ 53.587811] kasan_end_report+0x47/0x4f [ 53.591776] kasan_report.cold.8+0x76/0x2d3 [ 53.596100] __asan_report_load4_noabort+0x14/0x20 [ 53.601036] tcf_exts_destroy+0x2b4/0x3b0 [ 53.605180] ? tcf_exts_get_dev+0x460/0x460 [ 53.609511] ? tcindex_alloc_perfect_hash+0x4f/0x2e0 [ 53.614646] tcindex_free_perfect_hash.isra.6+0x8e/0x110 [ 53.620086] tcindex_set_parms+0xe11/0x1ae0 [ 53.624402] ? lock_downgrade+0x7f0/0x7f0 [ 53.628543] ? tcindex_alloc_perfect_hash+0x2e0/0x2e0 [ 53.633807] ? avc_has_extended_perms+0x1100/0x1100 [ 53.638803] ? avc_has_extended_perms+0x1100/0x1100 [ 53.643910] tcindex_change+0x1b7/0x24e [ 53.647903] ? tcindex_set_parms+0x1ae0/0x1ae0 [ 53.652482] ? tcindex_set_parms+0x1ae0/0x1ae0 [ 53.657046] tc_ctl_tfilter+0x1151/0x1b2e [ 53.661305] ? do_raw_spin_unlock+0xa0/0x250 [ 53.665777] ? tfilter_notify+0x250/0x250 [ 53.669914] ? mutex_lock_io_nested+0x1380/0x1380 [ 53.674746] ? trace_hardirqs_off+0x10/0x10 [ 53.679184] rtnetlink_rcv_msg+0x34f/0x9d0 [ 53.683403] ? rtnl_bridge_getlink+0x760/0x760 [ 53.687987] ? find_held_lock+0x36/0x1d0 [ 53.692036] netlink_rcv_skb+0x133/0x370 [ 53.696150] ? rtnl_bridge_getlink+0x760/0x760 [ 53.700732] ? netlink_ack+0xa00/0xa00 [ 53.704669] ? netlink_deliver_tap+0x8e/0x920 [ 53.709153] rtnetlink_rcv+0x10/0x20 [ 53.712848] netlink_unicast+0x40d/0x5f0 [ 53.716895] ? netlink_attachskb+0x6e0/0x6e0 [ 53.721565] netlink_sendmsg+0x730/0xbd0 [ 53.725639] ? netlink_unicast+0x5f0/0x5f0 [ 53.730040] ? selinux_socket_sendmsg+0x31/0x40 [ 53.735498] ? security_socket_sendmsg+0x6a/0xa0 [ 53.740358] ? netlink_unicast+0x5f0/0x5f0 [ 53.744585] sock_sendmsg+0xb5/0xf0 [ 53.748241] ___sys_sendmsg+0x282/0x920 [ 53.752204] ? trace_hardirqs_off+0x10/0x10 [ 53.756507] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 53.761263] ? find_held_lock+0x36/0x1d0 [ 53.765319] ? lock_downgrade+0x7f0/0x7f0 [ 53.769452] ? __fget+0x1ca/0x2f0 [ 53.772888] ? trace_hardirqs_on+0x10/0x10 [ 53.777106] ? __fget_light+0x166/0x200 [ 53.781069] ? __fdget+0xe/0x10 [ 53.784338] ? sockfd_lookup_light+0x1c/0x150 [ 53.788808] __sys_sendmmsg+0x126/0x300 [ 53.792765] ? SyS_sendmsg+0x20/0x20 [ 53.796460] ? lock_downgrade+0x7f0/0x7f0 [ 53.800593] ? put_timespec64+0xa4/0xf0 [ 53.804731] ? nsecs_to_jiffies+0x20/0x20 [ 53.808927] ? SyS_clock_gettime+0x115/0x160 [ 53.813323] ? move_addr_to_kernel+0x20/0x20 [ 53.817721] ? do_syscall_64+0x4c/0x5b0 [ 53.821693] ? __sys_sendmmsg+0x300/0x300 [ 53.825828] SyS_sendmmsg+0xd/0x20 [ 53.829355] do_syscall_64+0x1c7/0x5b0 [ 53.833228] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.838058] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 53.843246] RIP: 0033:0x459a59 [ 53.846414] RSP: 002b:00007fcbb22dcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 53.854103] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459a59 [ 53.861355] RDX: 0000000000000332 RSI: 0000000020000140 RDI: 0000000000000008 [ 53.868625] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 53.875924] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcbb22dd6d4 [ 53.883176] R13: 00000000004c74c1 R14: 00000000004dd1c0 R15: 00000000ffffffff [ 53.891860] Kernel Offset: disabled [ 53.895491] Rebooting in 86400 seconds..