[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 83.904366][ T27] audit: type=1800 audit(1578459704.363:25): pid=9483 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 83.965696][ T27] audit: type=1800 audit(1578459704.363:26): pid=9483 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 83.997988][ T27] audit: type=1800 audit(1578459704.363:27): pid=9483 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 '10.128.10.45' (ECDSA) to the list of known hosts. 2020/01/08 05:01:55 parsed 1 programs 2020/01/08 05:01:57 executed programs: 0 syzkaller login: [ 97.420033][ T9654] IPVS: ftp: loaded support on port[0] = 21 [ 97.494948][ T9654] chnl_net:caif_netlink_parms(): no params data found [ 97.528000][ T9654] bridge0: port 1(bridge_slave_0) entered blocking state [ 97.535498][ T9654] bridge0: port 1(bridge_slave_0) entered disabled state [ 97.545023][ T9654] device bridge_slave_0 entered promiscuous mode [ 97.553733][ T9654] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.561714][ T9654] bridge0: port 2(bridge_slave_1) entered disabled state [ 97.569866][ T9654] device bridge_slave_1 entered promiscuous mode [ 97.588322][ T9654] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 97.599252][ T9654] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 97.620711][ T9654] team0: Port device team_slave_0 added [ 97.628334][ T9654] team0: Port device team_slave_1 added [ 97.667709][ T9654] device hsr_slave_0 entered promiscuous mode [ 97.716019][ T9654] device hsr_slave_1 entered promiscuous mode [ 97.833938][ T9654] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 97.878347][ T9654] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 97.918548][ T9654] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 97.978109][ T9654] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 98.018262][ T9654] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.025448][ T9654] bridge0: port 2(bridge_slave_1) entered forwarding state [ 98.033337][ T9654] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.040464][ T9654] bridge0: port 1(bridge_slave_0) entered forwarding state [ 98.082926][ T9654] 8021q: adding VLAN 0 to HW filter on device bond0 [ 98.098992][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 98.109717][ T2754] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.117870][ T2754] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.126454][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 98.139876][ T9654] 8021q: adding VLAN 0 to HW filter on device team0 [ 98.150214][ T2886] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 98.159304][ T2886] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.166493][ T2886] bridge0: port 1(bridge_slave_0) entered forwarding state [ 98.178624][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 98.187484][ T2754] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.194531][ T2754] bridge0: port 2(bridge_slave_1) entered forwarding state [ 98.217119][ T2886] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 98.227229][ T2886] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 98.236271][ T2886] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 98.244890][ T2886] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 98.257028][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 98.268501][ T9654] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 98.287134][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 98.294776][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 98.307972][ T9654] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 98.326868][ T2886] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 98.346828][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 98.355090][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 98.364343][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 98.373422][ T9654] device veth0_vlan entered promiscuous mode [ 98.385119][ T9654] device veth1_vlan entered promiscuous mode [ 98.470503][ T9657] kasan: CONFIG_KASAN_INLINE enabled [ 98.476082][ T9657] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 98.484165][ T9657] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 98.491116][ T9657] CPU: 1 PID: 9657 Comm: syz-executor.0 Not tainted 5.5.0-rc5-syzkaller #0 [ 98.499682][ T9657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.509762][ T9657] RIP: 0010:hash_netport6_uadt+0x21d/0xdb0 [ 98.515557][ T9657] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 3a 09 00 00 4c 89 f2 45 8b 7f 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ff [ 98.535141][ T9657] RSP: 0018:ffffc90001f57160 EFLAGS: 00010246 [ 98.541193][ T9657] RAX: dffffc0000000000 RBX: ffffc90001f57320 RCX: 0000000000000000 [ 98.549146][ T9657] RDX: 0000000000000000 RSI: ffffffff8680fd4a RDI: ffff8880a8b9b460 [ 98.557104][ T9657] RBP: ffffc90001f572b8 R08: 0000000000000000 R09: 0000000000000000 [ 98.565069][ T9657] R10: ffffed1015d2703c R11: ffff8880ae9381e3 R12: ffff88809ff70300 [ 98.573019][ T9657] R13: ffffc90001f571e0 R14: 0000000000000000 R15: 0000000000000000 [ 98.580973][ T9657] FS: 00007f1f2d71d700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 98.589895][ T9657] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.596471][ T9657] CR2: 0000000000000000 CR3: 00000000a795b000 CR4: 00000000001406e0 [ 98.604426][ T9657] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 98.612396][ T9657] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 98.620346][ T9657] Call Trace: [ 98.623618][ T9657] ? hash_netport_create+0xa60/0xa60 [ 98.628886][ T9657] ? hash_netport6_same_set+0x1a0/0x1a0 [ 98.634416][ T9657] ? ip_set_utest+0x4aa/0x890 [ 98.639090][ T9657] ? __kasan_check_read+0x11/0x20 [ 98.644100][ T9657] ip_set_utest+0x55b/0x890 [ 98.648722][ T9657] ? ip_set_put_byindex+0x490/0x490 [ 98.653955][ T9657] ? __mutex_lock+0x458/0x13c0 [ 98.658711][ T9657] ? ip_set_put_byindex+0x490/0x490 [ 98.663906][ T9657] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 98.668836][ T9657] ? nfnetlink_bind+0x2c0/0x2c0 [ 98.673677][ T9657] ? find_held_lock+0x35/0x130 [ 98.678515][ T9657] ? __local_bh_enable_ip+0x15a/0x270 [ 98.683870][ T9657] ? __dev_queue_xmit+0x175c/0x35c0 [ 98.689049][ T9657] ? __local_bh_enable_ip+0x15a/0x270 [ 98.694451][ T9657] ? lockdep_hardirqs_on+0x421/0x5e0 [ 98.699841][ T9657] ? __dev_queue_xmit+0x172e/0x35c0 [ 98.705036][ T9657] ? trace_hardirqs_on+0x67/0x240 [ 98.710048][ T9657] ? __dev_queue_xmit+0x172e/0x35c0 [ 98.715230][ T9657] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.721455][ T9657] ? apparmor_capable+0x497/0x900 [ 98.726465][ T9657] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.732684][ T9657] ? __kasan_check_read+0x11/0x20 [ 98.737689][ T9657] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 98.743144][ T9657] netlink_rcv_skb+0x177/0x450 [ 98.748007][ T9657] ? nfnetlink_bind+0x2c0/0x2c0 [ 98.752906][ T9657] ? netlink_ack+0xb50/0xb50 [ 98.757555][ T9657] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.763787][ T9657] ? ns_capable_common+0x93/0x100 [ 98.768798][ T9657] ? ns_capable+0x20/0x30 [ 98.773110][ T9657] ? __netlink_ns_capable+0x104/0x140 [ 98.778518][ T9657] nfnetlink_rcv+0x1ba/0x460 [ 98.783099][ T9657] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 98.788604][ T9657] ? netlink_deliver_tap+0x24a/0xbe0 [ 98.793897][ T9657] netlink_unicast+0x58c/0x7d0 [ 98.798645][ T9657] ? netlink_attachskb+0x870/0x870 [ 98.803790][ T9657] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 98.809513][ T9657] ? __check_object_size+0x3d/0x437 [ 98.814712][ T9657] netlink_sendmsg+0x91c/0xea0 [ 98.819518][ T9657] ? netlink_unicast+0x7d0/0x7d0 [ 98.824444][ T9657] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 98.829969][ T9657] ? apparmor_socket_sendmsg+0x2a/0x30 [ 98.835421][ T9657] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.841642][ T9657] ? security_socket_sendmsg+0x8d/0xc0 [ 98.847082][ T9657] ? netlink_unicast+0x7d0/0x7d0 [ 98.852008][ T9657] sock_sendmsg+0xd7/0x130 [ 98.856420][ T9657] ____sys_sendmsg+0x753/0x880 [ 98.861162][ T9657] ? kernel_sendmsg+0x50/0x50 [ 98.865834][ T9657] ? __fget+0x35d/0x550 [ 98.869970][ T9657] ? find_held_lock+0x35/0x130 [ 98.874719][ T9657] ___sys_sendmsg+0x100/0x170 [ 98.879379][ T9657] ? sendmsg_copy_msghdr+0x70/0x70 [ 98.884504][ T9657] ? __kasan_check_read+0x11/0x20 [ 98.889516][ T9657] ? __fget+0x37f/0x550 [ 98.893672][ T9657] ? ksys_dup3+0x3e0/0x3e0 [ 98.898073][ T9657] ? __fget_light+0x1a9/0x230 [ 98.902732][ T9657] ? __fdget+0x1b/0x20 [ 98.906965][ T9657] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 98.913199][ T9657] __sys_sendmsg+0x105/0x1d0 [ 98.917772][ T9657] ? __sys_sendmsg_sock+0xc0/0xc0 [ 98.922793][ T9657] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 98.928257][ T9657] ? do_syscall_64+0x26/0x790 [ 98.932923][ T9657] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 98.938972][ T9657] ? do_syscall_64+0x26/0x790 [ 98.943633][ T9657] __x64_sys_sendmsg+0x78/0xb0 [ 98.948381][ T9657] do_syscall_64+0xfa/0x790 [ 98.952878][ T9657] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 98.958763][ T9657] RIP: 0033:0x45af49 [ 98.962652][ T9657] 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 [ 98.982237][ T9657] RSP: 002b:00007f1f2d71cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 98.990628][ T9657] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045af49 [ 98.998579][ T9657] RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000007 [ 99.006535][ T9657] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 99.014490][ T9657] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1f2d71d6d4 [ 99.022446][ T9657] R13: 00000000004c9e62 R14: 00000000004e2e98 R15: 00000000ffffffff [ 99.030416][ T9657] Modules linked in: [ 99.034361][ T9657] ---[ end trace 60238ef1c56092bd ]--- [ 99.039894][ T9657] RIP: 0010:hash_netport6_uadt+0x21d/0xdb0 [ 99.041003][ T2754] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 99.045779][ T9657] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 3a 09 00 00 4c 89 f2 45 8b 7f 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ff [ 99.045789][ T9657] RSP: 0018:ffffc90001f57160 EFLAGS: 00010246 [ 99.045801][ T9657] RAX: dffffc0000000000 RBX: ffffc90001f57320 RCX: 0000000000000000 [ 99.045808][ T9657] RDX: 0000000000000000 RSI: ffffffff8680fd4a RDI: ffff8880a8b9b460 [ 99.045816][ T9657] RBP: ffffc90001f572b8 R08: 0000000000000000 R09: 0000000000000000 [ 99.045824][ T9657] R10: ffffed1015d2703c R11: ffff8880ae9381e3 R12: ffff88809ff70300 [ 99.045832][ T9657] R13: ffffc90001f571e0 R14: 0000000000000000 R15: 0000000000000000 [ 99.045841][ T9657] FS: 00007f1f2d71d700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 99.045848][ T9657] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 99.045855][ T9657] CR2: 0000000000000000 CR3: 00000000a795b000 CR4: 00000000001406e0 [ 99.045865][ T9657] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 99.045871][ T9657] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 99.045878][ T9657] Kernel panic - not syncing: Fatal exception in interrupt [ 99.047239][ T9657] Kernel Offset: disabled [ 99.171053][ T9657] Rebooting in 86400 seconds..