[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 83.752043][ T27] audit: type=1800 audit(1578463936.954:25): pid=9390 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 83.783509][ T27] audit: type=1800 audit(1578463936.964:26): pid=9390 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 83.853499][ T27] audit: type=1800 audit(1578463936.964:27): pid=9390 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 '10.128.1.21' (ECDSA) to the list of known hosts. 2020/01/08 06:12:34 parsed 1 programs 2020/01/08 06:12:36 executed programs: 0 syzkaller login: [ 103.196045][ T9563] IPVS: ftp: loaded support on port[0] = 21 [ 103.262355][ T9563] chnl_net:caif_netlink_parms(): no params data found [ 103.294085][ T9563] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.301704][ T9563] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.309663][ T9563] device bridge_slave_0 entered promiscuous mode [ 103.318102][ T9563] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.325284][ T9563] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.332917][ T9563] device bridge_slave_1 entered promiscuous mode [ 103.352518][ T9563] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 103.364192][ T9563] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 103.383320][ T9563] team0: Port device team_slave_0 added [ 103.391742][ T9563] team0: Port device team_slave_1 added [ 103.476262][ T9563] device hsr_slave_0 entered promiscuous mode [ 103.523887][ T9563] device hsr_slave_1 entered promiscuous mode [ 103.627280][ T9563] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 103.686291][ T9563] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 103.726117][ T9563] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 103.765578][ T9563] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 103.815591][ T9563] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.822904][ T9563] bridge0: port 2(bridge_slave_1) entered forwarding state [ 103.830867][ T9563] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.837960][ T9563] bridge0: port 1(bridge_slave_0) entered forwarding state [ 103.880882][ T9563] 8021q: adding VLAN 0 to HW filter on device bond0 [ 103.895199][ T2767] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 103.905803][ T2767] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.914547][ T2767] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.922708][ T2767] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 103.936348][ T9563] 8021q: adding VLAN 0 to HW filter on device team0 [ 103.947649][ T2814] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 103.956733][ T2814] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.963874][ T2814] bridge0: port 1(bridge_slave_0) entered forwarding state [ 103.984266][ T2767] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 103.992622][ T2767] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.999734][ T2767] bridge0: port 2(bridge_slave_1) entered forwarding state [ 104.007993][ T2767] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 104.018970][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 104.027090][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 104.040066][ T2814] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 104.052848][ T3093] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 104.064854][ T9563] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 104.082607][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 104.092140][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 104.106253][ T9563] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 104.124318][ T2814] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 104.144648][ T2814] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 104.153036][ T2814] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 104.161417][ T2814] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 104.173137][ T9563] device veth0_vlan entered promiscuous mode [ 104.185385][ T9563] device veth1_vlan entered promiscuous mode [ 104.255128][ T2814] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 104.264720][ T2814] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 104.313185][ T9567] kasan: CONFIG_KASAN_INLINE enabled [ 104.318735][ T9567] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 104.326873][ T9567] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 104.333828][ T9567] CPU: 0 PID: 9567 Comm: syz-executor.0 Not tainted 5.5.0-rc5-syzkaller #0 [ 104.342398][ T9567] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.352561][ T9567] RIP: 0010:hash_ipport4_uadt+0x1f6/0xc20 [ 104.358299][ T9567] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 45 09 00 00 4c 89 ea 45 8b 76 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 e7 [ 104.377976][ T9567] RSP: 0018:ffffc90002037170 EFLAGS: 00010246 [ 104.384025][ T9567] RAX: dffffc0000000000 RBX: ffffc90002037320 RCX: 0000000000000000 [ 104.391977][ T9567] RDX: 0000000000000000 RSI: ffffffff867c0973 RDI: ffff8880978a4444 [ 104.399930][ T9567] RBP: ffffc900020372b8 R08: 0000000000000000 R09: 0000000000000000 [ 104.407897][ T9567] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffffc90002037220 [ 104.415897][ T9567] R13: 0000000000000000 R14: 0000000001040000 R15: ffff8880a01ed200 [ 104.423872][ T9567] FS: 00007fb62049b700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 104.432789][ T9567] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 104.439353][ T9567] CR2: 0000000000000000 CR3: 00000000a219b000 CR4: 00000000001406f0 [ 104.447323][ T9567] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 104.455275][ T9567] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 104.463222][ T9567] Call Trace: [ 104.466495][ T9567] ? mark_held_locks+0xf0/0xf0 [ 104.471238][ T9567] ? hash_ipport_create+0xa60/0xa60 [ 104.476436][ T9567] ? hash_ipport6_kadt+0x4c0/0x4c0 [ 104.481539][ T9567] ? nla_memcpy+0xb0/0xb0 [ 104.485859][ T9567] ? ip_set_utest+0x4aa/0x890 [ 104.490522][ T9567] ? __kasan_check_read+0x11/0x20 [ 104.495538][ T9567] ip_set_utest+0x55b/0x890 [ 104.500024][ T9567] ? ip_set_put_byindex+0x490/0x490 [ 104.505202][ T9567] ? __mutex_lock+0x458/0x13c0 [ 104.509965][ T9567] ? ip_set_put_byindex+0x490/0x490 [ 104.515145][ T9567] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 104.520068][ T9567] ? nfnetlink_bind+0x2c0/0x2c0 [ 104.524910][ T9567] ? find_held_lock+0x35/0x130 [ 104.529678][ T9567] ? __local_bh_enable_ip+0x15a/0x270 [ 104.535201][ T9567] ? __dev_queue_xmit+0x175c/0x35c0 [ 104.540384][ T9567] ? __local_bh_enable_ip+0x15a/0x270 [ 104.545738][ T9567] ? lockdep_hardirqs_on+0x421/0x5e0 [ 104.551067][ T9567] ? __dev_queue_xmit+0x172e/0x35c0 [ 104.556260][ T9567] ? trace_hardirqs_on+0x67/0x240 [ 104.561281][ T9567] ? __dev_queue_xmit+0x172e/0x35c0 [ 104.566588][ T9567] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 104.572936][ T9567] ? apparmor_capable+0x497/0x900 [ 104.578091][ T9567] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 104.584320][ T9567] ? __kasan_check_read+0x11/0x20 [ 104.589325][ T9567] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 104.594777][ T9567] netlink_rcv_skb+0x177/0x450 [ 104.599523][ T9567] ? nfnetlink_bind+0x2c0/0x2c0 [ 104.604383][ T9567] ? netlink_ack+0xb50/0xb50 [ 104.608955][ T9567] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 104.615179][ T9567] ? ns_capable_common+0x93/0x100 [ 104.620191][ T9567] ? ns_capable+0x20/0x30 [ 104.625544][ T9567] ? __netlink_ns_capable+0x104/0x140 [ 104.630896][ T9567] nfnetlink_rcv+0x1ba/0x460 [ 104.635481][ T9567] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 104.640933][ T9567] ? netlink_deliver_tap+0x24a/0xbe0 [ 104.646205][ T9567] netlink_unicast+0x58c/0x7d0 [ 104.650959][ T9567] ? netlink_attachskb+0x870/0x870 [ 104.656062][ T9567] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 104.661769][ T9567] ? __check_object_size+0x3d/0x437 [ 104.666951][ T9567] netlink_sendmsg+0x91c/0xea0 [ 104.671695][ T9567] ? netlink_unicast+0x7d0/0x7d0 [ 104.676630][ T9567] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 104.682154][ T9567] ? apparmor_socket_sendmsg+0x2a/0x30 [ 104.687612][ T9567] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 104.693844][ T9567] ? security_socket_sendmsg+0x8d/0xc0 [ 104.699309][ T9567] ? netlink_unicast+0x7d0/0x7d0 [ 104.704226][ T9567] sock_sendmsg+0xd7/0x130 [ 104.708621][ T9567] ____sys_sendmsg+0x753/0x880 [ 104.713390][ T9567] ? kernel_sendmsg+0x50/0x50 [ 104.718071][ T9567] ? __fget+0x35d/0x550 [ 104.722206][ T9567] ? find_held_lock+0x35/0x130 [ 104.726958][ T9567] ___sys_sendmsg+0x100/0x170 [ 104.731626][ T9567] ? sendmsg_copy_msghdr+0x70/0x70 [ 104.736816][ T9567] ? __kasan_check_read+0x11/0x20 [ 104.741823][ T9567] ? __fget+0x37f/0x550 [ 104.745974][ T9567] ? ksys_dup3+0x3e0/0x3e0 [ 104.750396][ T9567] ? __fget_light+0x1a9/0x230 [ 104.755054][ T9567] ? __fdget+0x1b/0x20 [ 104.759116][ T9567] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 104.765340][ T9567] __sys_sendmsg+0x105/0x1d0 [ 104.769911][ T9567] ? __sys_sendmsg_sock+0xc0/0xc0 [ 104.774933][ T9567] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 104.780395][ T9567] ? do_syscall_64+0x26/0x790 [ 104.785152][ T9567] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 104.791198][ T9567] ? do_syscall_64+0x26/0x790 [ 104.795875][ T9567] __x64_sys_sendmsg+0x78/0xb0 [ 104.800625][ T9567] do_syscall_64+0xfa/0x790 [ 104.805110][ T9567] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 104.811065][ T9567] RIP: 0033:0x45af49 [ 104.814939][ T9567] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 104.834611][ T9567] RSP: 002b:00007fb62049ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 104.843000][ T9567] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045af49 [ 104.851044][ T9567] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 000000000000000a [ 104.858999][ T9567] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 104.866949][ T9567] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb62049b6d4 [ 104.874900][ T9567] R13: 00000000004c9e62 R14: 00000000004e2e98 R15: 00000000ffffffff [ 104.882854][ T9567] Modules linked in: [ 104.886799][ T9567] ---[ end trace 6310016b54e639bc ]--- [ 104.892253][ T9567] RIP: 0010:hash_ipport4_uadt+0x1f6/0xc20 [ 104.898085][ T9567] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 45 09 00 00 4c 89 ea 45 8b 76 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 e7 [ 104.917761][ T9567] RSP: 0018:ffffc90002037170 EFLAGS: 00010246 [ 104.923857][ T9567] RAX: dffffc0000000000 RBX: ffffc90002037320 RCX: 0000000000000000 [ 104.931882][ T9567] RDX: 0000000000000000 RSI: ffffffff867c0973 RDI: ffff8880978a4444 [ 104.941627][ T9567] RBP: ffffc900020372b8 R08: 0000000000000000 R09: 0000000000000000 [ 104.949646][ T9567] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffffc90002037220 [ 104.957656][ T9567] R13: 0000000000000000 R14: 0000000001040000 R15: ffff8880a01ed200 [ 104.965878][ T9567] FS: 00007fb62049b700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 104.974847][ T9567] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 104.981439][ T9567] CR2: 0000000000000000 CR3: 00000000a219b000 CR4: 00000000001406f0 [ 104.989442][ T9567] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 104.997444][ T9567] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.005445][ T9567] Kernel panic - not syncing: Fatal exception in interrupt [ 105.014187][ T9567] Kernel Offset: disabled [ 105.018511][ T9567] Rebooting in 86400 seconds..