[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 90.848447][ T27] audit: type=1800 audit(1582071010.054:25): pid=9638 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 90.868627][ T27] audit: type=1800 audit(1582071010.054:26): pid=9638 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 90.924044][ T27] audit: type=1800 audit(1582071010.054:27): pid=9638 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.236' (ECDSA) to the list of known hosts. syzkaller login: [ 101.041546][ T9792] IPVS: ftp: loaded support on port[0] = 21 [ 101.089072][ T9792] chnl_net:caif_netlink_parms(): no params data found [ 101.126103][ T9792] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.133740][ T9792] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.142514][ T9792] device bridge_slave_0 entered promiscuous mode [ 101.151669][ T9792] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.159721][ T9792] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.167916][ T9792] device bridge_slave_1 entered promiscuous mode [ 101.185211][ T9792] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 101.196375][ T9792] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 101.216601][ T9792] team0: Port device team_slave_0 added [ 101.224235][ T9792] team0: Port device team_slave_1 added [ 101.238338][ T9792] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 101.245451][ T9792] 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. [ 101.271466][ T9792] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 101.284270][ T9792] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 101.291368][ T9792] 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. [ 101.317852][ T9792] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 101.390642][ T9792] device hsr_slave_0 entered promiscuous mode [ 101.428675][ T9792] device hsr_slave_1 entered promiscuous mode [ 101.559654][ T9792] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.611570][ T9792] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.660282][ T9792] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.741184][ T9792] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.832948][ T9792] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.840160][ T9792] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.847811][ T9792] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.854972][ T9792] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.896860][ T9792] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.910922][ T2700] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 101.921163][ T2700] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.929734][ T2700] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.937680][ T2700] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 101.950995][ T9792] 8021q: adding VLAN 0 to HW filter on device team0 [ 101.961807][ T3234] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.970623][ T3234] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.977848][ T3234] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.990459][ T3234] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.999252][ T3234] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.006300][ T3234] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.030227][ T2700] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 102.039722][ T2700] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 102.049275][ T2700] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 102.060702][ T2700] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 102.071810][ T3234] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 102.093338][ T2700] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 102.101367][ T2700] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 102.114081][ T9792] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 102.133388][ T3234] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 102.142540][ T3234] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 102.160773][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 102.170499][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 102.181321][ T9792] device veth0_vlan entered promiscuous mode [ 102.192822][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 102.200746][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 102.215403][ T9792] device veth1_vlan entered promiscuous mode [ 102.234825][ T3234] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 102.243886][ T3234] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 102.252121][ T3234] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 102.260959][ T3234] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 102.272235][ T9792] device veth0_macvtap entered promiscuous mode [ 102.282706][ T9792] device veth1_macvtap entered promiscuous mode [ 102.299552][ T9792] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 102.306990][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 102.316034][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 102.324310][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 102.334194][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 102.346171][ T9792] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 102.355119][ T3233] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 102.363833][ T3233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 102.516575][ T9792] general protection fault, probably for non-canonical address 0xdffffc00060cae4d: 0000 [#1] PREEMPT SMP KASAN [ 102.528301][ T9792] KASAN: probably user-memory-access in range [0x0000000030657268-0x000000003065726f] [ 102.537877][ T9792] CPU: 1 PID: 9792 Comm: syz-executor231 Not tainted 5.6.0-rc1-syzkaller #0 [ 102.546578][ T9792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 102.556669][ T9792] RIP: 0010:nf_flow_table_offload_setup+0x4dc/0x6d0 [ 102.563249][ T9792] Code: bc 24 50 ff ff ff 48 ba 00 00 00 00 00 fc ff df 4d 8b ae 00 02 00 00 4d 8b a4 24 58 ff ff ff 49 8d 7f 08 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 cd 01 00 00 4c 89 e2 49 89 47 08 48 b8 00 00 00 [ 102.582877][ T9792] RSP: 0018:ffffc90002117228 EFLAGS: 00010207 [ 102.588973][ T9792] RAX: ffff8880a6c45250 RBX: 1ffff92000422e49 RCX: 00000000060cae4d [ 102.596929][ T9792] RDX: dffffc0000000000 RSI: ffffffff8687652e RDI: 000000003065726f [ 102.604886][ T9792] RBP: ffffc90002117370 R08: ffff8880958d4000 R09: fffff52000422e55 [ 102.612844][ T9792] R10: fffff52000422e54 R11: ffffc900021172a6 R12: 0000000000000000 [ 102.620800][ T9792] R13: ffff8880a6c45250 R14: ffff8880a6c45050 R15: 0000000030657267 [ 102.628755][ T9792] FS: 0000000001b68880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 102.638102][ T9792] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 102.644684][ T9792] CR2: 0000000020003e00 CR3: 00000000a2271000 CR4: 00000000001406e0 [ 102.652670][ T9792] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 102.660630][ T9792] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 102.669718][ T9792] Call Trace: [ 102.673052][ T9792] ? flow_offload_queue_work+0x130/0x130 [ 102.678736][ T9792] ? nft_netdev_hook_alloc+0xfb/0x170 [ 102.684184][ T9792] ? nf_tables_init_net+0x1e0/0x1e0 [ 102.689487][ T9792] ? nla_memcpy+0xb0/0xb0 [ 102.693959][ T9792] ? wait_for_completion+0x440/0x440 [ 102.699358][ T9792] ? trace_hardirqs_on+0x67/0x240 [ 102.704377][ T9792] ? nf_tables_parse_netdev_hooks+0x70/0x660 [ 102.710351][ T9792] nf_tables_newflowtable+0x1352/0x1d90 [ 102.716041][ T9792] ? nf_tables_newrule+0x2400/0x2400 [ 102.721349][ T9792] ? __nla_parse+0x43/0x60 [ 102.725758][ T9792] nfnetlink_rcv_batch+0x8c8/0x1790 [ 102.731005][ T9792] ? nf_tables_newrule+0x2400/0x2400 [ 102.736284][ T9792] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 102.742102][ T9792] ? __dev_queue_xmit+0x172e/0x35c0 [ 102.747295][ T9792] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 102.753527][ T9792] ? apparmor_capable+0x497/0x900 [ 102.758592][ T9792] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 102.764825][ T9792] ? __nla_validate_parse+0x2d0/0x1ee0 [ 102.770618][ T9792] ? cap_capable+0x205/0x270 [ 102.775201][ T9792] ? nla_memcpy+0xb0/0xb0 [ 102.779526][ T9792] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 102.785856][ T9792] ? ns_capable_common+0x93/0x100 [ 102.790870][ T9792] ? __nla_parse+0x43/0x60 [ 102.795269][ T9792] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 102.800978][ T9792] nfnetlink_rcv+0x3e7/0x460 [ 102.805606][ T9792] ? nfnetlink_rcv_batch+0x1790/0x1790 [ 102.811098][ T9792] ? netlink_deliver_tap+0x248/0xbf0 [ 102.816433][ T9792] netlink_unicast+0x59e/0x7e0 [ 102.821188][ T9792] ? netlink_attachskb+0x870/0x870 [ 102.826298][ T9792] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 102.832036][ T9792] ? __check_object_size+0x3d/0x437 [ 102.837229][ T9792] netlink_sendmsg+0x91c/0xea0 [ 102.841987][ T9792] ? netlink_unicast+0x7e0/0x7e0 [ 102.846919][ T9792] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 102.852446][ T9792] ? apparmor_socket_sendmsg+0x2a/0x30 [ 102.857954][ T9792] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 102.864226][ T9792] ? security_socket_sendmsg+0x8d/0xc0 [ 102.869685][ T9792] ? netlink_unicast+0x7e0/0x7e0 [ 102.874707][ T9792] sock_sendmsg+0xd7/0x130 [ 102.879146][ T9792] ____sys_sendmsg+0x753/0x880 [ 102.883934][ T9792] ? kernel_sendmsg+0x50/0x50 [ 102.888604][ T9792] ___sys_sendmsg+0x100/0x170 [ 102.893259][ T9792] ? sendmsg_copy_msghdr+0x70/0x70 [ 102.898358][ T9792] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 102.904344][ T9792] ? prep_transhuge_page+0xa0/0xa0 [ 102.909442][ T9792] ? do_page_fault+0x579/0x12e1 [ 102.914280][ T9792] ? find_held_lock+0x35/0x130 [ 102.919033][ T9792] ? do_page_fault+0x579/0x12e1 [ 102.923874][ T9792] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 102.930105][ T9792] ? __fget_light+0x1ad/0x270 [ 102.934772][ T9792] ? __fdget+0x1b/0x20 [ 102.938830][ T9792] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 102.945063][ T9792] __sys_sendmsg+0x105/0x1d0 [ 102.949642][ T9792] ? __sys_sendmsg_sock+0xc0/0xc0 [ 102.954665][ T9792] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 102.960112][ T9792] ? do_syscall_64+0x26/0x790 [ 102.964777][ T9792] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 102.970938][ T9792] ? do_syscall_64+0x26/0x790 [ 102.975600][ T9792] __x64_sys_sendmsg+0x78/0xb0 [ 102.980345][ T9792] do_syscall_64+0xfa/0x790 [ 102.985102][ T9792] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 102.990981][ T9792] RIP: 0033:0x443709 [ 102.994865][ T9792] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 103.014453][ T9792] RSP: 002b:00007ffd6b81bdf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 103.022852][ T9792] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443709 [ 103.030815][ T9792] RDX: 0000000000000000 RSI: 0000000020003e00 RDI: 0000000000000003 [ 103.038773][ T9792] RBP: 00007ffd6b81be10 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 103.046792][ T9792] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 103.054787][ T9792] R13: 0000000000404ca0 R14: 0000000000000000 R15: 0000000000000000 [ 103.062803][ T9792] Modules linked in: [ 103.073992][ T9792] ---[ end trace 4f4960518c75724d ]--- [ 103.079501][ T9792] RIP: 0010:nf_flow_table_offload_setup+0x4dc/0x6d0 [ 103.086200][ T9792] Code: bc 24 50 ff ff ff 48 ba 00 00 00 00 00 fc ff df 4d 8b ae 00 02 00 00 4d 8b a4 24 58 ff ff ff 49 8d 7f 08 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 cd 01 00 00 4c 89 e2 49 89 47 08 48 b8 00 00 00 [ 103.106296][ T9792] RSP: 0018:ffffc90002117228 EFLAGS: 00010207 [ 103.112484][ T9792] RAX: ffff8880a6c45250 RBX: 1ffff92000422e49 RCX: 00000000060cae4d [ 103.120555][ T9792] RDX: dffffc0000000000 RSI: ffffffff8687652e RDI: 000000003065726f [ 103.129297][ T9792] RBP: ffffc90002117370 R08: ffff8880958d4000 R09: fffff52000422e55 [ 103.137318][ T9792] R10: fffff52000422e54 R11: ffffc900021172a6 R12: 0000000000000000 [ 103.145408][ T9792] R13: ffff8880a6c45250 R14: ffff8880a6c45050 R15: 0000000030657267 [ 103.154066][ T9792] FS: 0000000001b68880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 103.163061][ T9792] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 103.169715][ T9792] CR2: 0000000020003e00 CR3: 00000000a2271000 CR4: 00000000001406e0 [ 103.177682][ T9792] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 103.186095][ T9792] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 103.194134][ T9792] Kernel panic - not syncing: Fatal exception [ 103.201385][ T9792] Kernel Offset: disabled [ 103.205710][ T9792] Rebooting in 86400 seconds..