[info] Using makefile-style concurrent boot in runlevel 2.
[   24.918654] audit: type=1800 audit(1541008677.453:21): pid=5513 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] 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 '10.128.10.24' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   44.754841] netlink: 'syz-executor536': attribute type 3 has an invalid length.
[   44.762414] netlink: 'syz-executor536': attribute type 2 has an invalid length.
[   44.769950] kasan: CONFIG_KASAN_INLINE enabled
[   44.774608] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   44.782011] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   44.788293] CPU: 0 PID: 5668 Comm: syz-executor536 Not tainted 4.19.0+ #312
[   44.795376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.804721] RIP: 0010:icmp_timeout_obj_to_nlattr+0x77/0x170
[   44.810417] Code: b5 41 c7 00 f1 f1 f1 f1 c7 40 04 04 f2 f2 f2 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 c0 06 26 fb 4c 89 e8 48 c1 e8 03 <42> 0f b6 14 38 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
[   44.829388] RSP: 0018:ffff8801cb647220 EFLAGS: 00010246
[   44.834735] RAX: 0000000000000000 RBX: 1ffff100396c8e45 RCX: ffffffff865c6854
[   44.841989] RDX: 0000000000000000 RSI: ffffffff865970c0 RDI: ffff8801d7084a80
[   44.849244] RBP: ffff8801cb6472b0 R08: ffff8801d8e50080 R09: ffff8801d70729a8
[   44.856492] R10: ffffed003ae0e534 R11: ffff8801d70729a0 R12: ffff8801d7084a80
[   44.863744] R13: 0000000000000000 R14: ffff8801cb647288 R15: dffffc0000000000
[   44.870997] FS:  0000000002516880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
[   44.879200] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.885059] CR2: 00000000208a7000 CR3: 00000001d8779000 CR4: 00000000001406f0
[   44.892311] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   44.899563] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   44.906815] Call Trace:
[   44.909384]  ? memcpy+0x45/0x50
[   44.912718]  ? icmp_timeout_nlattr_to_obj+0x180/0x180
[   44.917897]  ? __nla_put+0x37/0x40
[   44.921417]  ? nla_put+0x117/0x150
[   44.924948]  cttimeout_default_get+0x644/0x9e0
[   44.929517]  ? cttimeout_new_timeout+0x8c0/0x8c0
[   44.934259]  ? __lock_is_held+0xb5/0x140
[   44.938306]  ? cttimeout_new_timeout+0x8c0/0x8c0
[   44.943043]  nfnetlink_rcv_msg+0xdd3/0x10c0
[   44.947351]  ? nfnetlink_bind+0x3b0/0x3b0
[   44.951481]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   44.957002]  ? refcount_sub_and_test_checked+0x203/0x310
[   44.962442]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[   44.967888]  ? netlink_deliver_tap+0x32e/0xf80
[   44.972457]  ? lock_downgrade+0x900/0x900
[   44.976604]  ? check_preemption_disabled+0x48/0x280
[   44.981619]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[   44.987145]  ? apparmor_capable+0x355/0x6c0
[   44.991454]  ? rcu_softirq_qs+0x20/0x20
[   44.995413]  ? apparmor_cred_prepare+0x5a0/0x5a0
[   45.000156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   45.005679]  netlink_rcv_skb+0x172/0x440
[   45.009727]  ? nfnetlink_bind+0x3b0/0x3b0
[   45.013856]  ? netlink_ack+0xb80/0xb80
[   45.017729]  ? __netlink_ns_capable+0x100/0x130
[   45.022384]  nfnetlink_rcv+0x1c0/0x4d0
[   45.026253]  ? nfnetlink_rcv_batch+0x19b0/0x19b0
[   45.031004]  ? kasan_check_write+0x14/0x20
[   45.035224]  netlink_unicast+0x5a5/0x760
[   45.039273]  ? netlink_attachskb+0x9a0/0x9a0
[   45.043668]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   45.049190]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[   45.054189]  netlink_sendmsg+0xa18/0xfc0
[   45.058236]  ? netlink_unicast+0x760/0x760
[   45.062456]  ? aa_sock_msg_perm.isra.12+0xba/0x160
[   45.067371]  ? apparmor_socket_sendmsg+0x29/0x30
[   45.072112]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   45.077633]  ? security_socket_sendmsg+0x94/0xc0
[   45.082373]  ? netlink_unicast+0x760/0x760
[   45.086708]  sock_sendmsg+0xd5/0x120
[   45.090405]  ___sys_sendmsg+0x7fd/0x930
[   45.094370]  ? find_held_lock+0x36/0x1c0
[   45.098419]  ? copy_msghdr_from_user+0x580/0x580
[   45.103262]  ? zap_class+0x640/0x640
[   45.106963]  ? zap_class+0x640/0x640
[   45.110656]  ? zap_class+0x640/0x640
[   45.114516]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   45.120042]  ? __fget_light+0x2e9/0x430
[   45.123997]  ? fget_raw+0x20/0x20
[   45.127439]  ? __do_page_fault+0x620/0xe60
[   45.131658]  ? lock_downgrade+0x900/0x900
[   45.135786]  ? rcu_read_unlock_special+0x1c0/0x1c0
[   45.140699]  ? kasan_check_read+0x11/0x20
[   45.144831]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[   45.150352]  ? sockfd_lookup_light+0xc5/0x160
[   45.154827]  __sys_sendmsg+0x11d/0x280
[   45.158697]  ? __ia32_sys_shutdown+0x80/0x80
[   45.163089]  ? up_read_non_owner+0x100/0x100
[   45.167605]  ? do_syscall_64+0x9a/0x820
[   45.171564]  ? do_syscall_64+0x9a/0x820
[   45.175527]  ? trace_hardirqs_off_caller+0x310/0x310
[   45.180618]  __x64_sys_sendmsg+0x78/0xb0
[   45.184664]  do_syscall_64+0x1b9/0x820
[   45.188537]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[   45.193890]  ? syscall_return_slowpath+0x5e0/0x5e0
[   45.198848]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   45.203684]  ? trace_hardirqs_on_caller+0x310/0x310
[   45.208687]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[   45.213686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   45.219222]  ? prepare_exit_to_usermode+0x291/0x3b0
[   45.224222]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   45.229054]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   45.234223] RIP: 0033:0x4400d9
[   45.237403] 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[   45.256290] RSP: 002b:00007ffc26f835b8 EFLAGS: 00000213 ORIG_RAX: 000000000000002e
[   45.263980] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004400d9
[   45.271232] RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000003
[   45.278481] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
[   45.285733] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401960
[   45.292981] R13: 00000000004019f0 R14: 0000000000000000 R15: 0000000000000000
[   45.300238] Modules linked in:
[   45.303542] ---[ end trace fd5c5c70f13f64b4 ]---
[   45.308381] RIP: 0010:icmp_timeout_obj_to_nlattr+0x77/0x170
[   45.314079] Code: b5 41 c7 00 f1 f1 f1 f1 c7 40 04 04 f2 f2 f2 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 c0 06 26 fb 4c 89 e8 48 c1 e8 03 <42> 0f b6 14 38 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
[   45.333037] RSP: 0018:ffff8801cb647220 EFLAGS: 00010246
[   45.338423] RAX: 0000000000000000 RBX: 1ffff100396c8e45 RCX: ffffffff865c6854
[   45.345681] RDX: 0000000000000000 RSI: ffffffff865970c0 RDI: ffff8801d7084a80
[   45.352997] RBP: ffff8801cb6472b0 R08: ffff8801d8e50080 R09: ffff8801d70729a8
[   45.360293] R10: ffffed003ae0e534 R11: ffff8801d70729a0 R12: ffff8801d7084a80
[   45.367590] R13: 0000000000000000 R14: ffff8801cb647288 R15: dffffc0000000000
[   45.374860] FS:  0000000002516880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
[   45.383118] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.389018] CR2: 00000000208a7000 CR3: 00000001d8779000 CR4: 00000000001406f0
[   45.396274] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.403573] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.410882] Kernel panic - not syncing: Fatal exception
[   45.417136] Kernel Offset: disabled
[   45.420756] Rebooting in 86400 seconds..