[ 36.237338] audit: type=1800 audit(1584264783.901:33): pid=7286 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 36.264309] audit: type=1800 audit(1584264783.911:34): pid=7286 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 [ 37.389194] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 37.656591] audit: type=1400 audit(1584264785.321:35): avc: denied { map } for pid=7456 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 [ 37.707309] random: sshd: uninitialized urandom read (32 bytes read) [ 38.490153] random: sshd: uninitialized urandom read (32 bytes read) [ 559.759736] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.51' (ECDSA) to the list of known hosts. [ 565.414699] random: sshd: uninitialized urandom read (32 bytes read) [ 565.546555] audit: type=1400 audit(1584265313.211:36): avc: denied { map } for pid=7468 comm="syz-executor199" path="/root/syz-executor199674768" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 565.821610] IPVS: ftp: loaded support on port[0] = 21 [ 566.577214] audit: type=1400 audit(1584265314.241:37): avc: denied { create } for pid=7469 comm="syz-executor199" 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 [ 566.601291] audit: type=1400 audit(1584265314.241:38): avc: denied { write } for pid=7469 comm="syz-executor199" 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 [ 566.625387] audit: type=1400 audit(1584265314.241:39): avc: denied { read } for pid=7469 comm="syz-executor199" 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 [ 566.672740] chnl_net:caif_netlink_parms(): no params data found [ 566.722256] bridge0: port 1(bridge_slave_0) entered blocking state [ 566.728823] bridge0: port 1(bridge_slave_0) entered disabled state [ 566.736211] device bridge_slave_0 entered promiscuous mode [ 566.743914] bridge0: port 2(bridge_slave_1) entered blocking state [ 566.750559] bridge0: port 2(bridge_slave_1) entered disabled state [ 566.757512] device bridge_slave_1 entered promiscuous mode [ 566.773680] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 566.782603] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 566.799331] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 566.806526] team0: Port device team_slave_0 added [ 566.812351] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 566.819384] team0: Port device team_slave_1 added [ 566.833372] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 566.839600] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 566.864870] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 566.875711] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 566.882053] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 566.907262] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 566.917940] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 566.925381] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 566.992097] device hsr_slave_0 entered promiscuous mode [ 567.040412] device hsr_slave_1 entered promiscuous mode [ 567.081139] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 567.088251] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 567.154365] bridge0: port 2(bridge_slave_1) entered blocking state [ 567.160791] bridge0: port 2(bridge_slave_1) entered forwarding state [ 567.167504] bridge0: port 1(bridge_slave_0) entered blocking state [ 567.173892] bridge0: port 1(bridge_slave_0) entered forwarding state [ 567.207518] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 567.214481] 8021q: adding VLAN 0 to HW filter on device bond0 [ 567.223638] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 567.232736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 567.252368] bridge0: port 1(bridge_slave_0) entered disabled state [ 567.259312] bridge0: port 2(bridge_slave_1) entered disabled state [ 567.269091] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 567.275647] 8021q: adding VLAN 0 to HW filter on device team0 [ 567.284713] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 567.292522] bridge0: port 1(bridge_slave_0) entered blocking state [ 567.298876] bridge0: port 1(bridge_slave_0) entered forwarding state [ 567.308357] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 567.316481] bridge0: port 2(bridge_slave_1) entered blocking state [ 567.322901] bridge0: port 2(bridge_slave_1) entered forwarding state [ 567.340829] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 567.348559] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 567.361951] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 567.371850] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 567.382420] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 567.389117] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 567.398102] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 567.405654] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 567.413446] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 567.425842] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 567.437713] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 567.444725] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 567.452154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 567.509056] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 567.519246] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 567.552156] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 567.559058] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 567.565775] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 567.575188] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 567.582631] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 567.589413] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 567.598184] device veth0_vlan entered promiscuous mode [ 567.607408] device veth1_vlan entered promiscuous mode [ 567.613269] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 567.622528] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 567.635510] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 567.644937] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 567.653229] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 567.660820] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 567.668531] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 567.677160] device veth0_macvtap entered promiscuous mode [ 567.685793] device veth1_macvtap entered promiscuous mode [ 567.694346] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 567.703599] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 567.714450] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 567.721721] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 567.729875] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 567.738228] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 567.749255] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 567.756436] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 567.763442] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 567.771286] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program executing program executing program executing program executing program executing program executing program [ 567.867736] tunl0: Master is either lo or non-ether device [ 567.876724] gre0: Master is either lo or non-ether device [ 567.897068] ip_vti0: Master is either lo or non-ether device [ 567.906825] ip6_vti0: Master is either lo or non-ether device executing program executing program executing program executing program executing program [ 567.917243] sit0: Master is either lo or non-ether device [ 567.926390] ip6tnl0: Master is either lo or non-ether device [ 567.935457] ip6gre0: Master is either lo or non-ether device [ 567.957041] vcan0: Master is either lo or non-ether device executing program executing program executing program executing program [ 568.047661] nlmon0: Master is either lo or non-ether device executing program [ 568.101905] syz-executor199 (7542) used greatest stack depth: 24944 bytes left [ 568.122340] caif0: Master is either lo or non-ether device executing program executing program executing program [ 568.234509] vxcan0: Master is either lo or non-ether device [ 568.287788] vxcan1: Master is either lo or non-ether device executing program executing program executing program executing program [ 568.654764] bridge0: port 1(bridge_slave_0) entered disabled state [ 568.682717] bridge_slave_0: Device is already in use. [ 568.701490] bridge0: port 1(bridge_slave_0) entered disabled state [ 568.711786] device bridge_slave_0 left promiscuous mode [ 568.717402] bridge0: port 1(bridge_slave_0) entered disabled state executing program executing program [ 568.904223] bridge0: port 2(bridge_slave_1) entered disabled state [ 568.922462] bridge_slave_1: Device is already in use. [ 568.933323] bridge0: port 2(bridge_slave_1) entered disabled state [ 568.962839] device bridge_slave_1 left promiscuous mode [ 568.977429] bridge0: port 2(bridge_slave_1) entered disabled state executing program executing program [ 569.181741] bond_slave_0: Device is already in use. [ 569.197653] bond0: Releasing backup interface bond_slave_0 executing program executing program [ 569.384932] bond_slave_1: Device is already in use. [ 569.393440] bond0: Releasing backup interface bond_slave_1 executing program executing program [ 569.584629] team_slave_0: Device is already in use. [ 569.605726] team0: Port device team_slave_0 removed executing program executing program [ 569.743206] team_slave_1: Device is already in use. [ 569.774767] team0: Port device team_slave_1 removed executing program executing program [ 569.962708] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 569.981063] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 570.015098] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 570.035845] batman_adv: batadv0: Removing interface: batadv_slave_0 executing program executing program [ 570.189422] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 570.228290] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 570.257128] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 570.294087] batman_adv: batadv0: Removing interface: batadv_slave_1 executing program executing program [ 570.483897] hsr_slave_0: Device is already in use. [ 570.502289] device hsr_slave_0 left promiscuous mode executing program executing program [ 570.687154] hsr_slave_1: Device is already in use. [ 570.722742] device hsr_slave_1 left promiscuous mode executing program executing program executing program executing program [ 571.016059] veth1_vlan: Device is already in use. executing program [ 571.089876] ------------[ cut here ]------------ [ 571.094799] WARNING: CPU: 1 PID: 7824 at drivers/net/ipvlan/ipvlan_main.c:63 ipvlan_unregister_nf_hook+0x230/0x260 [ 571.105316] Kernel panic - not syncing: panic_on_warn set ... [ 571.105316] [ 571.112687] CPU: 1 PID: 7824 Comm: syz-executor199 Not tainted 4.14.173-syzkaller #0 [ 571.120592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 571.130012] Call Trace: [ 571.132689] dump_stack+0x13e/0x194 [ 571.136394] panic+0x1f9/0x42d [ 571.139588] ? add_taint.cold+0x16/0x16 [ 571.143569] ? ipvlan_unregister_nf_hook+0x230/0x260 [ 571.148677] ? ipvlan_unregister_nf_hook+0x230/0x260 [ 571.153775] __warn.cold+0x2f/0x30 [ 571.157312] ? ist_end_non_atomic+0x10/0x10 [ 571.161637] ? ipvlan_unregister_nf_hook+0x230/0x260 [ 571.166795] report_bug+0x20a/0x248 [ 571.170423] do_error_trap+0x195/0x2d0 [ 571.174315] ? math_error+0x2d0/0x2d0 [ 571.178169] ? trace_hardirqs_on+0x10/0x10 [ 571.182464] ? nlmsg_notify+0x126/0x170 [ 571.186444] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 571.191326] invalid_op+0x1b/0x40 [ 571.194783] RIP: 0010:ipvlan_unregister_nf_hook+0x230/0x260 [ 571.200485] RSP: 0018:ffff888091af73e8 EFLAGS: 00010297 [ 571.205854] RAX: ffff8880972b8600 RBX: 0000000000000000 RCX: 1ffff11012e571ce [ 571.213139] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000282 [ 571.220424] RBP: ffff888090ccc040 R08: 0000000000000001 R09: 0000000000000001 [ 571.227692] R10: ffff8880972b8ea8 R11: ffff8880972b8600 R12: ffff8880a0522980 [ 571.234971] R13: ffff8880a4bd87c0 R14: 0000000000000000 R15: ffff8880a465ea00 [ 571.242278] ? ipvlan_unregister_nf_hook+0x230/0x260 [ 571.247378] ipvlan_set_port_mode+0x491/0x5a0 [ 571.251880] ipvlan_link_new+0xbb2/0xfc0 [ 571.256025] ? rtnl_is_locked+0x11/0x20 [ 571.260005] rtnl_newlink+0xecb/0x1720 [ 571.263902] ? ipvlan_port_destroy+0x3f0/0x3f0 [ 571.268482] ? trace_hardirqs_on+0x10/0x10 [ 571.272719] ? rtnl_link_unregister+0x1f0/0x1f0 [ 571.277388] ? lock_acquire+0x170/0x3f0 [ 571.281373] ? lock_acquire+0x170/0x3f0 [ 571.285342] ? rtnetlink_rcv_msg+0x31d/0xb10 [ 571.289773] ? __lock_is_held+0xad/0x140 [ 571.293837] ? lock_downgrade+0x6e0/0x6e0 [ 571.297997] ? rtnl_link_unregister+0x1f0/0x1f0 [ 571.302669] rtnetlink_rcv_msg+0x3be/0xb10 [ 571.306909] ? rtnl_bridge_getlink+0x7a0/0x7a0 [ 571.311492] ? save_trace+0x290/0x290 [ 571.315293] ? save_trace+0x290/0x290 [ 571.319096] netlink_rcv_skb+0x127/0x370 [ 571.323160] ? rtnl_bridge_getlink+0x7a0/0x7a0 [ 571.327745] ? netlink_ack+0x960/0x960 [ 571.331640] netlink_unicast+0x437/0x620 [ 571.335703] ? netlink_attachskb+0x600/0x600 [ 571.340118] netlink_sendmsg+0x733/0xbe0 [ 571.344187] ? netlink_unicast+0x620/0x620 [ 571.348493] ? SYSC_sendto+0x2b0/0x2b0 [ 571.352459] ? security_socket_sendmsg+0x83/0xb0 [ 571.357221] ? netlink_unicast+0x620/0x620 [ 571.361456] sock_sendmsg+0xc5/0x100 [ 571.365167] ___sys_sendmsg+0x70a/0x840 [ 571.369142] ? copy_msghdr_from_user+0x380/0x380 [ 571.373899] ? trace_hardirqs_on+0x10/0x10 [ 571.378539] ? save_trace+0x290/0x290 [ 571.382342] ? trace_hardirqs_on+0x10/0x10 [ 571.386583] ? find_held_lock+0x2d/0x110 [ 571.390731] ? __might_fault+0x104/0x1b0 [ 571.394835] ? lock_acquire+0x170/0x3f0 [ 571.398798] ? lock_downgrade+0x6e0/0x6e0 [ 571.402933] ? __might_fault+0x177/0x1b0 [ 571.407023] ? _copy_to_user+0x82/0xd0 [ 571.410908] ? __fget_light+0x16a/0x1f0 [ 571.414881] ? sockfd_lookup_light+0xb2/0x160 [ 571.419361] __sys_sendmsg+0xa3/0x120 [ 571.423141] ? SyS_shutdown+0x160/0x160 [ 571.427096] ? move_addr_to_kernel+0x60/0x60 [ 571.431514] ? __do_page_fault+0x35b/0xb40 [ 571.435732] SyS_sendmsg+0x27/0x40 [ 571.439251] ? __sys_sendmsg+0x120/0x120 [ 571.443321] do_syscall_64+0x1d5/0x640 [ 571.447205] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 571.452385] RIP: 0033:0x444159 [ 571.455555] RSP: 002b:00007ffc329dd138 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 571.463246] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000444159 [ 571.470506] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005 [ 571.477756] RBP: 00007ffc329dd140 R08: 0000000000000000 R09: 0000000000000000 [ 571.485005] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000008b670 [ 571.492254] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 571.501018] Kernel Offset: disabled [ 571.504642] Rebooting in 86400 seconds..