[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 89.097903] audit: type=1800 audit(1546458952.141:25): pid=10935 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 89.117004] audit: type=1800 audit(1546458952.151:26): pid=10935 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 89.136433] audit: type=1800 audit(1546458952.161:27): pid=10935 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 '10.128.0.70' (ECDSA) to the list of known hosts. 2019/01/02 19:56:15 parsed 1 programs 2019/01/02 19:56:21 executed programs: 0 syzkaller login: [ 118.219853] IPVS: ftp: loaded support on port[0] = 21 [ 118.312739] chnl_net:caif_netlink_parms(): no params data found [ 118.355460] bridge0: port 1(bridge_slave_0) entered blocking state [ 118.362067] bridge0: port 1(bridge_slave_0) entered disabled state [ 118.369553] device bridge_slave_0 entered promiscuous mode [ 118.377426] bridge0: port 2(bridge_slave_1) entered blocking state [ 118.383990] bridge0: port 2(bridge_slave_1) entered disabled state [ 118.391500] device bridge_slave_1 entered promiscuous mode [ 118.412950] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 118.423214] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 118.444008] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 118.452167] team0: Port device team_slave_0 added [ 118.457915] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 118.466018] team0: Port device team_slave_1 added [ 118.471537] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 118.479725] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 118.554480] device hsr_slave_0 entered promiscuous mode [ 118.592681] device hsr_slave_1 entered promiscuous mode [ 118.632862] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 118.640020] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 118.659468] bridge0: port 2(bridge_slave_1) entered blocking state [ 118.665941] bridge0: port 2(bridge_slave_1) entered forwarding state [ 118.673162] bridge0: port 1(bridge_slave_0) entered blocking state [ 118.679612] bridge0: port 1(bridge_slave_0) entered forwarding state [ 118.733057] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 118.739133] 8021q: adding VLAN 0 to HW filter on device bond0 [ 118.748952] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 118.759904] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 118.768455] bridge0: port 1(bridge_slave_0) entered disabled state [ 118.776542] bridge0: port 2(bridge_slave_1) entered disabled state [ 118.784349] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 118.797662] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 118.803780] 8021q: adding VLAN 0 to HW filter on device team0 [ 118.814481] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 118.822792] bridge0: port 1(bridge_slave_0) entered blocking state [ 118.829283] bridge0: port 1(bridge_slave_0) entered forwarding state [ 118.841647] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 118.850119] bridge0: port 2(bridge_slave_1) entered blocking state [ 118.856675] bridge0: port 2(bridge_slave_1) entered forwarding state [ 118.885589] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 118.894525] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 118.913707] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 118.922588] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 118.936822] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 118.948500] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 118.954911] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 118.974709] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 118.988193] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 119.102229] ================================================================== [ 119.109636] BUG: KMSAN: uninit-value in vti6_tnl_xmit+0x4cb/0x2360 [ 119.115959] CPU: 0 PID: 11102 Comm: syz-executor0 Not tainted 4.20.0-rc7+ #2 [ 119.123159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.132514] Call Trace: [ 119.135141] dump_stack+0x173/0x1d0 [ 119.138786] kmsan_report+0x12e/0x2a0 [ 119.142629] __msan_warning+0x82/0xf0 [ 119.146444] vti6_tnl_xmit+0x4cb/0x2360 [ 119.150442] ? vti6_dev_uninit+0x660/0x660 [ 119.154671] dev_hard_start_xmit+0x607/0xc40 [ 119.159092] __dev_queue_xmit+0x2e42/0x3bc0 [ 119.163436] dev_queue_xmit+0x4b/0x60 [ 119.167227] ? __netdev_pick_tx+0x1270/0x1270 [ 119.171715] packet_sendmsg+0x8306/0x8f30 [ 119.175882] ? kmsan_memcpy_memmove_metadata+0x58f/0xfa0 [ 119.181344] ? sock_write_iter+0x102/0x4d0 [ 119.185573] ? vfs_write+0x478/0x8d0 [ 119.189286] ? do_syscall_64+0xbc/0xf0 [ 119.193182] ? entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 119.198556] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 119.203924] ? vmalloc_to_page+0x56e/0x6a0 [ 119.208191] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 119.213586] ? compat_packet_setsockopt+0x360/0x360 [ 119.218614] sock_write_iter+0x3f4/0x4d0 [ 119.222680] ? sock_read_iter+0x4e0/0x4e0 [ 119.226820] __vfs_write+0x888/0xb70 [ 119.230608] vfs_write+0x478/0x8d0 [ 119.234154] __se_sys_write+0x17a/0x370 [ 119.238131] __x64_sys_write+0x4a/0x70 [ 119.242025] do_syscall_64+0xbc/0xf0 [ 119.245735] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 119.250924] RIP: 0033:0x457ec9 [ 119.254117] Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 119.273019] RSP: 002b:00007ffc9dbe8f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 119.280712] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 119.287967] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 119.295225] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 119.302484] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000017ff914 [ 119.309740] R13: 00000000004c3a3c R14: 00000000004dbbc0 R15: 00000000ffffffff [ 119.317011] [ 119.318619] Uninit was created at: [ 119.322147] kmsan_internal_poison_shadow+0x92/0x150 [ 119.327230] kmsan_kmalloc+0xa6/0x130 [ 119.331023] kmsan_slab_alloc+0xe/0x10 [ 119.334932] __kmalloc_node_track_caller+0xe18/0x1030 [ 119.340136] __alloc_skb+0x309/0xa20 [ 119.343838] alloc_skb_with_frags+0x1c7/0xac0 [ 119.348327] sock_alloc_send_pskb+0xafd/0x10e0 [ 119.352908] packet_sendmsg+0x661a/0x8f30 [ 119.357041] sock_write_iter+0x3f4/0x4d0 [ 119.361091] __vfs_write+0x888/0xb70 [ 119.364790] vfs_write+0x478/0x8d0 [ 119.368325] __se_sys_write+0x17a/0x370 [ 119.372330] __x64_sys_write+0x4a/0x70 [ 119.376246] do_syscall_64+0xbc/0xf0 [ 119.379949] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 119.385117] ================================================================== [ 119.392500] Disabling lock debugging due to kernel taint [ 119.397948] Kernel panic - not syncing: panic_on_warn set ... [ 119.403823] CPU: 0 PID: 11102 Comm: syz-executor0 Tainted: G B 4.20.0-rc7+ #2 [ 119.412392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.421753] Call Trace: [ 119.424368] dump_stack+0x173/0x1d0 [ 119.427999] panic+0x3ce/0x961 [ 119.431214] kmsan_report+0x293/0x2a0 [ 119.435013] __msan_warning+0x82/0xf0 [ 119.438808] vti6_tnl_xmit+0x4cb/0x2360 [ 119.442904] ? vti6_dev_uninit+0x660/0x660 [ 119.447145] dev_hard_start_xmit+0x607/0xc40 [ 119.451572] __dev_queue_xmit+0x2e42/0x3bc0 [ 119.455947] dev_queue_xmit+0x4b/0x60 [ 119.459770] ? __netdev_pick_tx+0x1270/0x1270 [ 119.464273] packet_sendmsg+0x8306/0x8f30 [ 119.468453] ? kmsan_memcpy_memmove_metadata+0x58f/0xfa0 [ 119.473909] ? sock_write_iter+0x102/0x4d0 [ 119.478131] ? vfs_write+0x478/0x8d0 [ 119.481836] ? do_syscall_64+0xbc/0xf0 [ 119.485730] ? entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 119.491085] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 119.496456] ? vmalloc_to_page+0x56e/0x6a0 [ 119.500700] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 119.506102] ? compat_packet_setsockopt+0x360/0x360 [ 119.511126] sock_write_iter+0x3f4/0x4d0 [ 119.515193] ? sock_read_iter+0x4e0/0x4e0 [ 119.519341] __vfs_write+0x888/0xb70 [ 119.523086] vfs_write+0x478/0x8d0 [ 119.526637] __se_sys_write+0x17a/0x370 [ 119.530627] __x64_sys_write+0x4a/0x70 [ 119.534508] do_syscall_64+0xbc/0xf0 [ 119.538232] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 119.543443] RIP: 0033:0x457ec9 [ 119.546627] Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 119.565515] RSP: 002b:00007ffc9dbe8f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 119.573209] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 119.580471] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 119.587745] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 119.595017] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000017ff914 [ 119.602273] R13: 00000000004c3a3c R14: 00000000004dbbc0 R15: 00000000ffffffff [ 119.610478] Kernel Offset: disabled [ 119.614108] Rebooting in 86400 seconds..