[ 81.216722][ T27] audit: type=1800 audit(1579690489.566:26): pid=9570 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 82.262630][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 82.262644][ T27] audit: type=1800 audit(1579690490.646:29): pid=9570 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 [ 82.289413][ T27] audit: type=1800 audit(1579690490.646:30): pid=9570 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 '10.128.0.138' (ECDSA) to the list of known hosts. syzkaller login: [ 90.944538][ T9724] IPVS: ftp: loaded support on port[0] = 21 [ 90.993988][ T9724] chnl_net:caif_netlink_parms(): no params data found [ 91.020550][ T9724] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.029373][ T9724] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.037507][ T9724] device bridge_slave_0 entered promiscuous mode [ 91.045785][ T9724] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.053004][ T9724] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.060666][ T9724] device bridge_slave_1 entered promiscuous mode [ 91.078013][ T9724] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 91.088561][ T9724] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 91.107094][ T9724] team0: Port device team_slave_0 added [ 91.114453][ T9724] team0: Port device team_slave_1 added [ 91.129002][ T9724] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 91.135944][ T9724] 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. [ 91.163253][ T9724] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 91.175530][ T9724] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 91.182776][ T9724] 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. [ 91.208759][ T9724] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 91.269040][ T9724] device hsr_slave_0 entered promiscuous mode [ 91.307068][ T9724] device hsr_slave_1 entered promiscuous mode [ 91.438070][ T9724] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 91.489655][ T9724] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 91.529495][ T9724] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 91.579323][ T9724] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 91.628942][ T9724] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.636098][ T9724] bridge0: port 2(bridge_slave_1) entered forwarding state [ 91.643995][ T9724] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.651187][ T9724] bridge0: port 1(bridge_slave_0) entered forwarding state [ 91.694716][ T9724] 8021q: adding VLAN 0 to HW filter on device bond0 [ 91.708384][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 91.719053][ T2821] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.727305][ T2821] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.735208][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 91.748619][ T9724] 8021q: adding VLAN 0 to HW filter on device team0 [ 91.759907][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 91.769554][ T2821] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.776689][ T2821] bridge0: port 1(bridge_slave_0) entered forwarding state [ 91.788115][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 91.796489][ T3029] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.803600][ T3029] bridge0: port 2(bridge_slave_1) entered forwarding state [ 91.822335][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 91.831240][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 91.842628][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 91.859630][ T9724] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 91.871190][ T9724] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 91.883309][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 91.891800][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 91.900332][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 91.917963][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 91.925406][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 91.939012][ T9724] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 91.958059][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 91.977601][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 91.985834][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 91.994518][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 92.004620][ T9724] device veth0_vlan entered promiscuous mode [ 92.016962][ T9724] device veth1_vlan entered promiscuous mode [ 92.038327][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 92.048513][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 92.058809][ T9724] device veth0_macvtap entered promiscuous mode [ 92.069004][ T9724] device veth1_macvtap entered promiscuous mode [ 92.084514][ T9724] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 92.092123][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 92.101351][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready executing program [ 92.109703][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 92.118332][ T2821] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 92.129697][ T9724] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 92.137345][ T2814] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 92.145799][ T2814] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 92.165369][ T9724] kasan: CONFIG_KASAN_INLINE enabled [ 92.170791][ T9724] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 92.179620][ T9724] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 92.186565][ T9724] CPU: 1 PID: 9724 Comm: syz-executor603 Not tainted 5.5.0-rc6-syzkaller #0 [ 92.195215][ T9724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.205257][ T9724] RIP: 0010:nf_flow_table_offload_setup+0x4dc/0x6d0 [ 92.211859][ T9724] 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 [ 92.231527][ T9724] RSP: 0018:ffffc90002037228 EFLAGS: 00010203 [ 92.237569][ T9724] RAX: ffff8880970a0a50 RBX: 1ffff92000406e49 RCX: 000000060dcc2d8f [ 92.245516][ T9724] RDX: dffffc0000000000 RSI: ffffffff86730dce RDI: 000000306e616c7e [ 92.253466][ T9724] RBP: ffffc90002037370 R08: ffff88809ec00180 R09: fffff52000406e55 [ 92.261416][ T9724] R10: fffff52000406e54 R11: ffffc900020372a6 R12: 0000000000000000 [ 92.269426][ T9724] R13: ffff8880970a0a50 R14: ffff8880970a0850 R15: 000000306e616c76 [ 92.277378][ T9724] FS: 0000000001b14880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 92.286280][ T9724] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.292839][ T9724] CR2: 0000000020003e00 CR3: 00000000a7a3f000 CR4: 00000000001406e0 [ 92.300790][ T9724] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.308775][ T9724] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.316730][ T9724] Call Trace: [ 92.320016][ T9724] ? flow_offload_queue_work+0x130/0x130 [ 92.325624][ T9724] ? nft_netdev_hook_alloc+0xfb/0x170 [ 92.330984][ T9724] ? nf_tables_init_net+0x170/0x170 [ 92.336173][ T9724] ? nla_memcpy+0xb0/0xb0 [ 92.340488][ T9724] ? wait_for_completion+0x440/0x440 [ 92.345748][ T9724] ? trace_hardirqs_on+0x67/0x240 [ 92.350760][ T9724] ? nf_tables_parse_netdev_hooks+0x70/0x660 [ 92.356732][ T9724] nf_tables_newflowtable+0x1352/0x1e20 [ 92.362271][ T9724] ? nf_tables_newrule+0x2400/0x2400 [ 92.367539][ T9724] ? __nla_parse+0x43/0x60 [ 92.371935][ T9724] nfnetlink_rcv_batch+0xf42/0x17a0 [ 92.377124][ T9724] ? nf_tables_newrule+0x2400/0x2400 [ 92.382501][ T9724] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 92.388333][ T9724] ? __dev_queue_xmit+0x172e/0x35c0 [ 92.393521][ T9724] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.399745][ T9724] ? apparmor_capable+0x497/0x900 [ 92.404750][ T9724] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.410972][ T9724] ? __nla_validate_parse+0x2d0/0x1ee0 [ 92.416411][ T9724] ? cap_capable+0x205/0x270 [ 92.420992][ T9724] ? nla_memcpy+0xb0/0xb0 [ 92.425311][ T9724] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.431534][ T9724] ? ns_capable_common+0x93/0x100 [ 92.436536][ T9724] ? __nla_parse+0x43/0x60 [ 92.440928][ T9724] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 92.446634][ T9724] nfnetlink_rcv+0x3e7/0x460 [ 92.451226][ T9724] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 92.456671][ T9724] ? netlink_deliver_tap+0x24a/0xbf0 [ 92.461944][ T9724] netlink_unicast+0x59e/0x7e0 [ 92.466687][ T9724] ? netlink_attachskb+0x870/0x870 [ 92.471776][ T9724] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 92.477476][ T9724] ? __check_object_size+0x3d/0x437 [ 92.482651][ T9724] netlink_sendmsg+0x91c/0xea0 [ 92.487394][ T9724] ? netlink_unicast+0x7e0/0x7e0 [ 92.492304][ T9724] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 92.497825][ T9724] ? apparmor_socket_sendmsg+0x2a/0x30 [ 92.503258][ T9724] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.509474][ T9724] ? security_socket_sendmsg+0x8d/0xc0 [ 92.514909][ T9724] ? netlink_unicast+0x7e0/0x7e0 [ 92.519824][ T9724] sock_sendmsg+0xd7/0x130 [ 92.524214][ T9724] ____sys_sendmsg+0x753/0x880 [ 92.528953][ T9724] ? kernel_sendmsg+0x50/0x50 [ 92.533606][ T9724] ? mark_held_locks+0xa4/0xf0 [ 92.538380][ T9724] ? do_huge_pmd_anonymous_page+0x1463/0x1a50 [ 92.544438][ T9724] ? __handle_mm_fault+0x3145/0x3cc0 [ 92.549697][ T9724] ? do_huge_pmd_anonymous_page+0x1463/0x1a50 [ 92.555742][ T9724] ___sys_sendmsg+0x100/0x170 [ 92.560397][ T9724] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 92.566355][ T9724] ? sendmsg_copy_msghdr+0x70/0x70 [ 92.571448][ T9724] ? __do_page_fault+0x56a/0xd80 [ 92.576369][ T9724] ? find_held_lock+0x35/0x130 [ 92.581115][ T9724] ? __do_page_fault+0x56a/0xd80 [ 92.586043][ T9724] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.592260][ T9724] ? __fget_light+0x1a9/0x230 [ 92.596921][ T9724] ? __fdget+0x1b/0x20 [ 92.600978][ T9724] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 92.607194][ T9724] __sys_sendmsg+0x105/0x1d0 [ 92.611757][ T9724] ? __sys_sendmsg_sock+0xc0/0xc0 [ 92.616767][ T9724] ? down_read_non_owner+0x490/0x490 [ 92.622037][ T9724] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 92.627479][ T9724] ? do_syscall_64+0x26/0x790 [ 92.632192][ T9724] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 92.638235][ T9724] ? do_syscall_64+0x26/0x790 [ 92.642890][ T9724] __x64_sys_sendmsg+0x78/0xb0 [ 92.647647][ T9724] do_syscall_64+0xfa/0x790 [ 92.652129][ T9724] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 92.657999][ T9724] RIP: 0033:0x4429a9 [ 92.661888][ T9724] 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 [ 92.681570][ T9724] RSP: 002b:00007ffcb85bdb28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 92.689967][ T9724] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004429a9 [ 92.697917][ T9724] RDX: 0000000000000000 RSI: 0000000020003e00 RDI: 0000000000000003 [ 92.705864][ T9724] RBP: 00007ffcb85bdb40 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 92.713810][ T9724] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 92.721809][ T9724] R13: 0000000000403f40 R14: 0000000000000000 R15: 0000000000000000 [ 92.729808][ T9724] Modules linked in: [ 92.738001][ T9724] ---[ end trace 2a3681c83968da56 ]--- [ 92.743547][ T9724] RIP: 0010:nf_flow_table_offload_setup+0x4dc/0x6d0 [ 92.750684][ T9724] 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 [ 92.770357][ T9724] RSP: 0018:ffffc90002037228 EFLAGS: 00010203 [ 92.776448][ T9724] RAX: ffff8880970a0a50 RBX: 1ffff92000406e49 RCX: 000000060dcc2d8f [ 92.784679][ T9724] RDX: dffffc0000000000 RSI: ffffffff86730dce RDI: 000000306e616c7e [ 92.792685][ T9724] RBP: ffffc90002037370 R08: ffff88809ec00180 R09: fffff52000406e55 [ 92.800664][ T9724] R10: fffff52000406e54 R11: ffffc900020372a6 R12: 0000000000000000 [ 92.808662][ T9724] R13: ffff8880970a0a50 R14: ffff8880970a0850 R15: 000000306e616c76 [ 92.817227][ T9724] FS: 0000000001b14880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 92.826188][ T9724] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.832844][ T9724] CR2: ffffffffff600400 CR3: 00000000a7a3f000 CR4: 00000000001406e0 [ 92.841105][ T9724] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.849129][ T9724] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.857391][ T9724] Kernel panic - not syncing: Fatal exception [ 92.864939][ T9724] Kernel Offset: disabled [ 92.869277][ T9724] Rebooting in 86400 seconds..