[ 99.810904][ T27] audit: type=1800 audit(1579865154.613:25): pid=9707 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 100.699239][ T27] kauditd_printk_skb: 3 callbacks suppressed [ 100.699250][ T27] audit: type=1800 audit(1579865155.503:29): pid=9707 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 100.726209][ T27] audit: type=1800 audit(1579865155.503:30): pid=9707 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.19' (ECDSA) to the list of known hosts. syzkaller login: [ 111.823438][ T9860] IPVS: ftp: loaded support on port[0] = 21 [ 111.877389][ T9860] chnl_net:caif_netlink_parms(): no params data found [ 111.906369][ T9860] bridge0: port 1(bridge_slave_0) entered blocking state [ 111.913810][ T9860] bridge0: port 1(bridge_slave_0) entered disabled state [ 111.921925][ T9860] device bridge_slave_0 entered promiscuous mode [ 111.930478][ T9860] bridge0: port 2(bridge_slave_1) entered blocking state [ 111.937699][ T9860] bridge0: port 2(bridge_slave_1) entered disabled state [ 111.945633][ T9860] device bridge_slave_1 entered promiscuous mode [ 111.963654][ T9860] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 111.975157][ T9860] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 111.995318][ T9860] team0: Port device team_slave_0 added [ 112.002562][ T9860] team0: Port device team_slave_1 added [ 112.017220][ T9860] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 112.024306][ T9860] 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. [ 112.050656][ T9860] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 112.063774][ T9860] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 112.070794][ T9860] 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. [ 112.097386][ T9860] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 112.176243][ T9860] device hsr_slave_0 entered promiscuous mode [ 112.224610][ T9860] device hsr_slave_1 entered promiscuous mode [ 112.338616][ T9860] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 112.387155][ T9860] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 112.447136][ T9860] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 112.496553][ T9860] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 112.547580][ T9860] bridge0: port 2(bridge_slave_1) entered blocking state [ 112.554932][ T9860] bridge0: port 2(bridge_slave_1) entered forwarding state [ 112.562607][ T9860] bridge0: port 1(bridge_slave_0) entered blocking state [ 112.569783][ T9860] bridge0: port 1(bridge_slave_0) entered forwarding state [ 112.612772][ T9860] 8021q: adding VLAN 0 to HW filter on device bond0 [ 112.629076][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 112.639059][ T2781] bridge0: port 1(bridge_slave_0) entered disabled state [ 112.647715][ T2781] bridge0: port 2(bridge_slave_1) entered disabled state [ 112.656307][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 112.670109][ T9860] 8021q: adding VLAN 0 to HW filter on device team0 [ 112.680970][ T2899] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 112.690353][ T2899] bridge0: port 1(bridge_slave_0) entered blocking state [ 112.697481][ T2899] bridge0: port 1(bridge_slave_0) entered forwarding state [ 112.715817][ T2782] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 112.724937][ T2782] bridge0: port 2(bridge_slave_1) entered blocking state [ 112.732004][ T2782] bridge0: port 2(bridge_slave_1) entered forwarding state [ 112.755097][ T2899] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 112.764795][ T2899] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 112.773577][ T2899] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 112.782297][ T2899] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 112.791962][ T9860] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 112.801339][ T2899] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 112.820846][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 112.828582][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 112.842590][ T9860] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 112.862284][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 112.881702][ T2900] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 112.890482][ T2900] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 112.902168][ T2900] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 112.911187][ T2900] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 112.921314][ T9860] device veth0_vlan entered promiscuous mode [ 112.935463][ T9860] device veth1_vlan entered promiscuous mode [ 112.956300][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 112.965721][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 112.973759][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 112.982916][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 112.993839][ T9860] device veth0_macvtap entered promiscuous mode [ 113.004354][ T9860] device veth1_macvtap entered promiscuous mode [ 113.021580][ T9860] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 113.030050][ T2900] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 113.038794][ T2900] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 113.046959][ T2900] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 113.056145][ T2900] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 113.068782][ T9860] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 113.076300][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready executing program [ 113.087461][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 113.237631][ C1] BUG: unable to handle page fault for address: ffff8880bfffd000 [ 113.245379][ C1] #PF: supervisor read access in kernel mode [ 113.251344][ C1] #PF: error_code(0x0000) - not-present page [ 113.257305][ C1] PGD c401067 P4D c401067 PUD 21ffff067 PMD 21fffe067 PTE 0 [ 113.264635][ C1] Oops: 0000 [#1] PREEMPT SMP KASAN [ 113.269828][ C1] CPU: 1 PID: 9860 Comm: syz-executor109 Not tainted 5.5.0-rc7-syzkaller #0 [ 113.278480][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.288539][ C1] RIP: 0010:do_csum+0x19f/0x420 [ 113.293371][ C1] Code: 47 2c a4 f9 41 83 ef 01 31 ff 31 c0 44 89 fe 49 03 1e 49 13 5e 08 49 13 5e 10 49 13 5e 18 49 13 5e 20 49 13 5e 28 49 13 5e 30 <49> 13 5e 38 48 11 c3 e8 95 2d a4 f9 49 83 c6 40 45 85 ff 75 c0 8b [ 113.312978][ C1] RSP: 0018:ffffc90000da8650 EFLAGS: 00010202 [ 113.319033][ C1] RAX: 0000000000000000 RBX: 2e2f3b104b3f22cb RCX: ffffffff87d0cb4b [ 113.327018][ C1] RDX: 0000000000000100 RSI: 000000000351c53f RDI: 0000000000000000 [ 113.335046][ C1] RBP: ffffc90000da8688 R08: ffff888097312480 R09: fffff94000454247 [ 113.343000][ C1] R10: fffff94000454246 R11: ffffea00022a1237 R12: 00000000ffffff38 [ 113.351058][ C1] R13: ffff8880947120c8 R14: ffff8880bfffcfc8 R15: 000000000351c53f [ 113.359022][ C1] FS: 0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:0000000009c7d840 [ 113.367938][ C1] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 113.374500][ C1] CR2: ffff8880bfffd000 CR3: 00000000949bd000 CR4: 00000000001406e0 [ 113.382462][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 113.390424][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 113.398487][ C1] Call Trace: [ 113.401822][ C1] [ 113.404676][ C1] csum_partial+0x21/0x30 [ 113.409001][ C1] __udp_gso_segment+0x7fa/0x1140 [ 113.414036][ C1] udp4_ufo_fragment+0x55f/0x770 [ 113.419056][ C1] ? skb_udp_tunnel_segment+0x1e70/0x1e70 [ 113.425217][ C1] inet_gso_segment+0x53c/0x1170 [ 113.430168][ C1] skb_mac_gso_segment+0x295/0x590 [ 113.435278][ C1] ? inet_listen+0x6a0/0x6a0 [ 113.439863][ C1] ? skb_network_protocol+0x4a0/0x4a0 [ 113.445239][ C1] __skb_gso_segment+0x363/0x730 [ 113.450169][ C1] udp_queue_rcv_skb+0x2b2/0x790 [ 113.455092][ C1] ? ip_mc_sf_allow+0x4e/0x6e0 [ 113.459856][ C1] __udp4_lib_rcv+0x20bc/0x2d20 [ 113.464695][ C1] udp_rcv+0x22/0x30 [ 113.468577][ C1] ip_protocol_deliver_rcu+0x5a/0x880 [ 113.473962][ C1] ? rcu_dynticks_curr_cpu_in_eqs+0x54/0xb0 [ 113.479932][ C1] ip_local_deliver_finish+0x23b/0x380 [ 113.485385][ C1] ip_local_deliver+0x1e9/0x520 [ 113.490226][ C1] ? ip_local_deliver_finish+0x380/0x380 [ 113.495846][ C1] ? ip_protocol_deliver_rcu+0x880/0x880 [ 113.501470][ C1] ? ip_rcv_finish_core.isra.0+0x614/0x1ec0 [ 113.507396][ C1] ? lock_downgrade+0x920/0x920 [ 113.512235][ C1] ip_rcv_finish+0x1db/0x2f0 [ 113.516816][ C1] ip_rcv+0xe8/0x3f0 [ 113.520702][ C1] ? ip_local_deliver+0x520/0x520 [ 113.525714][ C1] ? ip_rcv_finish_core.isra.0+0x1ec0/0x1ec0 [ 113.531715][ C1] ? ip_local_deliver+0x520/0x520 [ 113.536731][ C1] __netif_receive_skb_one_core+0x113/0x1a0 [ 113.542620][ C1] ? __netif_receive_skb_core+0x30b0/0x30b0 [ 113.548501][ C1] ? lock_acquire+0x190/0x410 [ 113.553221][ C1] ? process_backlog+0x195/0x750 [ 113.558153][ C1] __netif_receive_skb+0x2c/0x1d0 [ 113.563231][ C1] process_backlog+0x206/0x750 [ 113.567987][ C1] ? net_rx_action+0x27b/0x1120 [ 113.572831][ C1] ? lockdep_hardirqs_on+0x19e/0x5e0 [ 113.578098][ C1] net_rx_action+0x508/0x1120 [ 113.582765][ C1] ? napi_busy_loop+0x970/0x970 [ 113.587651][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 113.593214][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 113.599197][ C1] ? trace_hardirqs_on+0x67/0x240 [ 113.604241][ C1] __do_softirq+0x262/0x98c [ 113.608746][ C1] do_softirq_own_stack+0x2a/0x40 [ 113.613753][ C1] [ 113.616683][ C1] do_softirq.part.0+0x11a/0x170 [ 113.621791][ C1] do_softirq+0x18/0x20 [ 113.625929][ C1] netif_rx_ni+0x3ea/0x670 [ 113.630336][ C1] dev_loopback_xmit+0x285/0x750 [ 113.635261][ C1] ? netif_rx_ni+0x670/0x670 [ 113.639976][ C1] ? dst_alloc+0x139/0x200 [ 113.644402][ C1] ip_mc_finish_output+0x16e/0x4a0 [ 113.649504][ C1] ip_mc_output+0x5d8/0xf60 [ 113.654013][ C1] ? __ip_queue_xmit+0x1c10/0x1c10 [ 113.659122][ C1] ? dst_output+0x170/0x170 [ 113.663616][ C1] ? ip_make_skb+0x1b1/0x2c0 [ 113.668206][ C1] ? ip_reply_glue_bits+0xc0/0xc0 [ 113.673256][ C1] ip_local_out+0xbb/0x1b0 [ 113.677869][ C1] ip_send_skb+0x42/0xf0 [ 113.682097][ C1] udp_send_skb.isra.0+0x6d5/0x11b0 [ 113.687286][ C1] ? xfrm_lookup_route+0x5b/0x1e0 [ 113.692296][ C1] udp_sendmsg+0x1e8f/0x2810 [ 113.696890][ C1] ? ip_reply_glue_bits+0xc0/0xc0 [ 113.701914][ C1] ? udp_unicast_rcv_skb.isra.0+0x360/0x360 [ 113.707930][ C1] ? tomoyo_supervisor+0x360/0xef0 [ 113.713037][ C1] ? tomoyo_profile+0x60/0x60 [ 113.717706][ C1] ? snprintf+0xbb/0xf0 [ 113.721843][ C1] ? __lock_acquire+0x8a0/0x4a00 [ 113.726775][ C1] udpv6_sendmsg+0x14c7/0x2b40 [ 113.731558][ C1] ? udpv6_sendmsg+0x14c7/0x2b40 [ 113.736494][ C1] ? tomoyo_check_inet_address+0x453/0x730 [ 113.742631][ C1] ? udp_v6_get_port+0x6b0/0x6b0 [ 113.747650][ C1] ? tomoyo_check_acl+0x229/0x3e0 [ 113.752654][ C1] ? tomoyo_check_inet_address+0xf7/0x730 [ 113.758368][ C1] ? __kasan_check_read+0x11/0x20 [ 113.763390][ C1] ? ___might_sleep+0x163/0x2c0 [ 113.768223][ C1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 113.774443][ C1] ? aa_label_sk_perm+0x91/0xf0 [ 113.779273][ C1] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 113.784895][ C1] ? aa_sk_perm+0x346/0xaf0 [ 113.789383][ C1] ? tomoyo_socket_sendmsg_permission+0x147/0x3cb [ 113.795943][ C1] ? aa_af_perm+0x2a0/0x2a0 [ 113.800434][ C1] ? lock_downgrade+0x920/0x920 [ 113.805276][ C1] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 113.810820][ C1] inet6_sendmsg+0x9e/0xe0 [ 113.815488][ C1] ? inet6_sendmsg+0x9e/0xe0 [ 113.820070][ C1] ? inet6_ioctl+0x1c0/0x1c0 [ 113.824648][ C1] sock_sendmsg+0xd7/0x130 [ 113.829060][ C1] __sys_sendto+0x262/0x380 [ 113.833546][ C1] ? __ia32_sys_getpeername+0xb0/0xb0 [ 113.838910][ C1] ? inet_dgram_connect+0x152/0x2d0 [ 113.844118][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 113.850379][ C1] ? __sys_connect+0x11d/0x1b0 [ 113.855137][ C1] ? fd_install+0x4d/0x60 [ 113.859468][ C1] ? __sys_socket+0x180/0x220 [ 113.864137][ C1] ? move_addr_to_kernel+0x80/0x80 [ 113.869251][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 113.874708][ C1] ? do_fast_syscall_32+0xd1/0xe16 [ 113.879843][ C1] ? entry_SYSENTER_compat+0x70/0x7f [ 113.885117][ C1] __ia32_sys_sendto+0xdf/0x1a0 [ 113.889948][ C1] do_fast_syscall_32+0x27b/0xe16 [ 113.895017][ C1] entry_SYSENTER_compat+0x70/0x7f [ 113.900128][ C1] RIP: 0023:0xf7f699a9 [ 113.904192][ C1] Code: 00 00 00 89 d3 5b 5e 5f 5d c3 b8 80 96 98 00 eb c4 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 113.923812][ C1] RSP: 002b:00000000ffb232cc EFLAGS: 00000286 ORIG_RAX: 0000000000000171 [ 113.932226][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000600 [ 113.940189][ C1] RDX: 0000000000000401 RSI: 0000000000000000 RDI: 00000000200011c0 [ 113.948181][ C1] RBP: 000000000000001c R08: 0000000000000000 R09: 0000000000000000 [ 113.956141][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 113.964104][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 113.972076][ C1] Modules linked in: [ 113.975959][ C1] CR2: ffff8880bfffd000 [ 113.980110][ C1] ---[ end trace 5fd2f6ccea7acca1 ]--- [ 113.985560][ C1] RIP: 0010:do_csum+0x19f/0x420 [ 113.990541][ C1] Code: 47 2c a4 f9 41 83 ef 01 31 ff 31 c0 44 89 fe 49 03 1e 49 13 5e 08 49 13 5e 10 49 13 5e 18 49 13 5e 20 49 13 5e 28 49 13 5e 30 <49> 13 5e 38 48 11 c3 e8 95 2d a4 f9 49 83 c6 40 45 85 ff 75 c0 8b [ 114.010186][ C1] RSP: 0018:ffffc90000da8650 EFLAGS: 00010202 [ 114.016265][ C1] RAX: 0000000000000000 RBX: 2e2f3b104b3f22cb RCX: ffffffff87d0cb4b [ 114.024235][ C1] RDX: 0000000000000100 RSI: 000000000351c53f RDI: 0000000000000000 [ 114.033535][ C1] RBP: ffffc90000da8688 R08: ffff888097312480 R09: fffff94000454247 [ 114.041689][ C1] R10: fffff94000454246 R11: ffffea00022a1237 R12: 00000000ffffff38 [ 114.049644][ C1] R13: ffff8880947120c8 R14: ffff8880bfffcfc8 R15: 000000000351c53f [ 114.057650][ C1] FS: 0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:0000000009c7d840 [ 114.066940][ C1] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 114.073522][ C1] CR2: ffff8880bfffd000 CR3: 00000000949bd000 CR4: 00000000001406e0 [ 114.081490][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 114.089649][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 114.097611][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 114.106249][ C1] Kernel Offset: disabled [ 114.110579][ C1] Rebooting in 86400 seconds..