[ 55.541840] audit: type=1800 audit(1545184811.578:27): pid=6419 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 55.561506] audit: type=1800 audit(1545184811.598:28): pid=6419 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 57.340739] audit: type=1800 audit(1545184813.388:29): pid=6419 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 [ 57.360236] audit: type=1800 audit(1545184813.388:30): pid=6419 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 '10.128.0.88' (ECDSA) to the list of known hosts. 2018/12/19 02:00:26 parsed 1 programs 2018/12/19 02:00:32 executed programs: 0 syzkaller login: [ 77.058730] IPVS: ftp: loaded support on port[0] = 21 [ 77.539135] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.545691] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.553763] device bridge_slave_0 entered promiscuous mode [ 77.585472] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.592107] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.599659] device bridge_slave_1 entered promiscuous mode [ 77.632212] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 77.663094] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 77.754904] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 77.788995] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 77.934273] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 77.942780] team0: Port device team_slave_0 added [ 77.974454] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 77.982827] team0: Port device team_slave_1 added [ 78.014612] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.049788] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.084248] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.120052] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.431666] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.438251] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.445473] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.452089] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.460201] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 79.462659] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.580269] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.687579] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 79.792720] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 79.798984] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 79.807243] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.916945] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.652159] ================================================================== [ 80.659589] BUG: KMSAN: uninit-value in vti6_tnl_xmit+0x4cb/0x2420 [ 80.665908] CPU: 0 PID: 6841 Comm: syz-executor0 Not tainted 4.20.0-rc7+ #3 [ 80.672997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.682348] Call Trace: [ 80.684941] dump_stack+0x1c9/0x220 [ 80.688830] kmsan_report+0x12d/0x290 [ 80.692638] __msan_warning+0x76/0xc0 [ 80.696460] vti6_tnl_xmit+0x4cb/0x2420 [ 80.700431] ? __msan_poison_alloca+0x1e0/0x270 [ 80.705112] ? validate_xmit_xfrm+0x83/0x1420 [ 80.709626] ? vti6_dev_uninit+0x670/0x670 [ 80.713863] dev_hard_start_xmit+0x627/0xc80 [ 80.718291] __dev_queue_xmit+0x3173/0x3cf0 [ 80.722671] dev_queue_xmit+0x4b/0x60 [ 80.726473] ? __netdev_pick_tx+0x1290/0x1290 [ 80.730962] packet_sendmsg+0x7cbd/0x9200 [ 80.735113] ? kmsan_memcpy_memmove_metadata+0x1a9/0xf30 [ 80.740560] ? kmsan_memcpy_metadata+0xb/0x10 [ 80.745084] ? sock_write_iter+0x102/0x4f0 [ 80.749316] ? __se_sys_write+0x17a/0x370 [ 80.753464] ? do_syscall_64+0xcd/0x110 [ 80.757452] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 80.762816] ? vmalloc_to_page+0x585/0x6c0 [ 80.767094] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 80.772493] ? aa_sk_perm+0x7ab/0x9e0 [ 80.776344] ? compat_packet_setsockopt+0x360/0x360 [ 80.781361] sock_write_iter+0x3f4/0x4f0 [ 80.785437] ? sock_read_iter+0x4e0/0x4e0 [ 80.789577] __vfs_write+0x888/0xb80 [ 80.793314] vfs_write+0x4b4/0x900 [ 80.796887] __se_sys_write+0x17a/0x370 [ 80.800896] __x64_sys_write+0x4a/0x70 [ 80.804788] do_syscall_64+0xcd/0x110 [ 80.808591] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 80.813774] RIP: 0033:0x457669 [ 80.816956] Code: fd b3 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 80.835856] RSP: 002b:00007ffdc6305238 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 80.843584] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457669 [ 80.850851] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 80.858119] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 80.865404] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000020d1914 [ 80.872691] R13: 00000000004c60bb R14: 00000000004dac80 R15: 00000000ffffffff [ 80.879990] [ 80.881615] Uninit was created at: [ 80.885155] kmsan_internal_poison_shadow+0x92/0x150 [ 80.890254] kmsan_kmalloc+0xa1/0x100 [ 80.894046] kmsan_slab_alloc+0xe/0x10 [ 80.898372] __kmalloc_node_track_caller+0xf06/0x1120 [ 80.903564] __alloc_skb+0x318/0xa40 [ 80.907267] alloc_skb_with_frags+0x1c9/0xa80 [ 80.911766] sock_alloc_send_pskb+0xb5d/0x1140 [ 80.916358] packet_sendmsg+0x66a2/0x9200 [ 80.920496] sock_write_iter+0x3f4/0x4f0 [ 80.924570] __vfs_write+0x888/0xb80 [ 80.928271] vfs_write+0x4b4/0x900 [ 80.931810] __se_sys_write+0x17a/0x370 [ 80.935791] __x64_sys_write+0x4a/0x70 [ 80.939690] do_syscall_64+0xcd/0x110 [ 80.943492] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 80.948663] ================================================================== [ 80.956007] Disabling lock debugging due to kernel taint [ 80.961446] Kernel panic - not syncing: panic_on_warn set ... [ 80.967335] CPU: 0 PID: 6841 Comm: syz-executor0 Tainted: G B 4.20.0-rc7+ #3 [ 80.975817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.985169] Call Trace: [ 80.987770] dump_stack+0x1c9/0x220 [ 80.991427] panic+0x3f0/0x98f [ 80.994654] kmsan_report+0x290/0x290 [ 80.998477] __msan_warning+0x76/0xc0 [ 81.002310] vti6_tnl_xmit+0x4cb/0x2420 [ 81.006305] ? __msan_poison_alloca+0x1e0/0x270 [ 81.010982] ? validate_xmit_xfrm+0x83/0x1420 [ 81.015503] ? vti6_dev_uninit+0x670/0x670 [ 81.019737] dev_hard_start_xmit+0x627/0xc80 [ 81.024174] __dev_queue_xmit+0x3173/0x3cf0 [ 81.028530] dev_queue_xmit+0x4b/0x60 [ 81.032357] ? __netdev_pick_tx+0x1290/0x1290 [ 81.036851] packet_sendmsg+0x7cbd/0x9200 [ 81.041002] ? kmsan_memcpy_memmove_metadata+0x1a9/0xf30 [ 81.046451] ? kmsan_memcpy_metadata+0xb/0x10 [ 81.050954] ? sock_write_iter+0x102/0x4f0 [ 81.055192] ? __se_sys_write+0x17a/0x370 [ 81.059339] ? do_syscall_64+0xcd/0x110 [ 81.063358] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 81.068724] ? vmalloc_to_page+0x585/0x6c0 [ 81.072986] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 81.078354] ? aa_sk_perm+0x7ab/0x9e0 [ 81.082200] ? compat_packet_setsockopt+0x360/0x360 [ 81.087217] sock_write_iter+0x3f4/0x4f0 [ 81.091296] ? sock_read_iter+0x4e0/0x4e0 [ 81.095440] __vfs_write+0x888/0xb80 [ 81.099174] vfs_write+0x4b4/0x900 [ 81.102729] __se_sys_write+0x17a/0x370 [ 81.106714] __x64_sys_write+0x4a/0x70 [ 81.110612] do_syscall_64+0xcd/0x110 [ 81.114422] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 81.119601] RIP: 0033:0x457669 [ 81.122787] Code: fd b3 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 81.141685] RSP: 002b:00007ffdc6305238 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 81.149432] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457669 [ 81.156699] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 81.163965] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 81.171225] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000020d1914 [ 81.178489] R13: 00000000004c60bb R14: 00000000004dac80 R15: 00000000ffffffff [ 81.186780] Kernel Offset: disabled [ 81.190440] Rebooting in 86400 seconds..