[info] Using makefile-style concurrent boot in runlevel 2. [ 25.111957] audit: type=1800 audit(1541347221.399:21): pid=5513 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 25.139211] audit: type=1800 audit(1541347221.409:22): pid=5513 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 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 '10.128.0.121' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 51.857875] netlink: 'syz-executor709': attribute type 3 has an invalid length. [ 51.865668] netlink: 'syz-executor709': attribute type 2 has an invalid length. [ 51.873202] kasan: CONFIG_KASAN_INLINE enabled [ 51.878052] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 51.885542] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 51.891785] CPU: 0 PID: 5669 Comm: syz-executor709 Not tainted 4.19.0+ #97 [ 51.898797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.908299] RIP: 0010:icmp_timeout_obj_to_nlattr+0x77/0x170 [ 51.914125] 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 60 7a 24 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 [ 51.933132] RSP: 0018:ffff8801c1ee7220 EFLAGS: 00010246 [ 51.938492] RAX: 0000000000000000 RBX: 1ffff100383dce45 RCX: ffffffff865e07f4 [ 51.945757] RDX: 0000000000000000 RSI: ffffffff865b1060 RDI: ffff8801d4156000 [ 51.953180] RBP: ffff8801c1ee72b0 R08: ffff8801d2d8a4c0 R09: ffff8801d367ec68 [ 51.960463] R10: ffffed003a6cfd8c R11: ffff8801d367ec60 R12: ffff8801d4156000 [ 51.967729] R13: 0000000000000000 R14: ffff8801c1ee7288 R15: dffffc0000000000 [ 51.974995] FS: 00000000015eb880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 51.983221] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.989101] CR2: 00000000208a7000 CR3: 00000001d55f2000 CR4: 00000000001406f0 [ 51.996425] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.003696] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.011122] Call Trace: [ 52.013712] ? memcpy+0x45/0x50 [ 52.016986] ? icmp_timeout_nlattr_to_obj+0x180/0x180 [ 52.022269] ? __nla_put+0x37/0x40 [ 52.025814] ? nla_put+0x117/0x150 [ 52.029349] cttimeout_default_get+0x644/0x9e0 [ 52.033924] ? cttimeout_new_timeout+0x8c0/0x8c0 [ 52.038672] ? __lock_is_held+0xb5/0x140 [ 52.042862] ? cttimeout_new_timeout+0x8c0/0x8c0 [ 52.047684] nfnetlink_rcv_msg+0xdd3/0x10c0 [ 52.052003] ? nfnetlink_bind+0x3b0/0x3b0 [ 52.056143] ? __netlink_lookup+0x5b6/0xa90 [ 52.060458] ? find_held_lock+0x36/0x1c0 [ 52.064517] ? netlink_deliver_tap+0x32e/0xf80 [ 52.069095] ? lock_downgrade+0x900/0x900 [ 52.073324] ? check_preemption_disabled+0x48/0x280 [ 52.078351] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 52.083276] ? kasan_check_read+0x11/0x20 [ 52.087501] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 52.092858] ? rcu_softirq_qs+0x20/0x20 [ 52.096848] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.102405] netlink_rcv_skb+0x172/0x440 [ 52.106480] ? nfnetlink_bind+0x3b0/0x3b0 [ 52.110624] ? netlink_ack+0xb80/0xb80 [ 52.114643] ? __netlink_ns_capable+0x100/0x130 [ 52.119307] nfnetlink_rcv+0x1c0/0x4d0 [ 52.123210] ? nfnetlink_rcv_batch+0x19b0/0x19b0 [ 52.127975] ? kasan_check_write+0x14/0x20 [ 52.132259] netlink_unicast+0x5a5/0x760 [ 52.136321] ? netlink_attachskb+0x9a0/0x9a0 [ 52.140731] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.146261] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 52.151269] netlink_sendmsg+0xa18/0xfc0 [ 52.155424] ? netlink_unicast+0x760/0x760 [ 52.159674] ? smack_socket_sendmsg+0xb0/0x190 [ 52.164256] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.169793] ? security_socket_sendmsg+0x94/0xc0 [ 52.174651] ? netlink_unicast+0x760/0x760 [ 52.178877] sock_sendmsg+0xd5/0x120 [ 52.182582] ___sys_sendmsg+0x7fd/0x930 [ 52.186664] ? find_held_lock+0x36/0x1c0 [ 52.190734] ? copy_msghdr_from_user+0x580/0x580 [ 52.195488] ? zap_class+0x640/0x640 [ 52.199198] ? zap_class+0x640/0x640 [ 52.202991] ? zap_class+0x640/0x640 [ 52.206710] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.212247] ? __fget_light+0x2e9/0x430 [ 52.216211] ? fget_raw+0x20/0x20 [ 52.219655] ? __do_page_fault+0x620/0xe60 [ 52.223900] ? lock_downgrade+0x900/0x900 [ 52.228095] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 52.233027] ? kasan_check_read+0x11/0x20 [ 52.237172] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.242712] ? sockfd_lookup_light+0xc5/0x160 [ 52.247208] __sys_sendmsg+0x11d/0x280 [ 52.251086] ? __ia32_sys_shutdown+0x80/0x80 [ 52.255492] ? up_read_non_owner+0x100/0x100 [ 52.259895] ? do_syscall_64+0x9a/0x820 [ 52.264007] ? do_syscall_64+0x9a/0x820 [ 52.267981] ? trace_hardirqs_off_caller+0x310/0x310 [ 52.273082] __x64_sys_sendmsg+0x78/0xb0 [ 52.277140] do_syscall_64+0x1b9/0x820 [ 52.281020] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 52.286595] ? syscall_return_slowpath+0x5e0/0x5e0 [ 52.291523] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.296434] ? trace_hardirqs_on_caller+0x310/0x310 [ 52.301520] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 52.306540] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.312068] ? prepare_exit_to_usermode+0x291/0x3b0 [ 52.317081] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.321917] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.327387] RIP: 0033:0x4400d9 [ 52.330578] 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 [ 52.349589] RSP: 002b:00007ffd59e1fa88 EFLAGS: 00000213 ORIG_RAX: 000000000000002e [ 52.357292] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004400d9 [ 52.364550] RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000003 [ 52.371917] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 52.379184] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401960 [ 52.386452] R13: 00000000004019f0 R14: 0000000000000000 R15: 0000000000000000 [ 52.393719] Modules linked in: [ 52.397313] ---[ end trace ca907e504374ecd5 ]--- [ 52.402091] RIP: 0010:icmp_timeout_obj_to_nlattr+0x77/0x170 [ 52.408047] 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 60 7a 24 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 [ 52.426984] RSP: 0018:ffff8801c1ee7220 EFLAGS: 00010246 [ 52.432349] RAX: 0000000000000000 RBX: 1ffff100383dce45 RCX: ffffffff865e07f4 [ 52.439683] RDX: 0000000000000000 RSI: ffffffff865b1060 RDI: ffff8801d4156000 [ 52.446984] RBP: ffff8801c1ee72b0 R08: ffff8801d2d8a4c0 R09: ffff8801d367ec68 [ 52.454247] R10: ffffed003a6cfd8c R11: ffff8801d367ec60 R12: ffff8801d4156000 [ 52.461569] R13: 0000000000000000 R14: ffff8801c1ee7288 R15: dffffc0000000000 [ 52.468867] FS: 00000000015eb880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 52.477253] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.483146] CR2: 00000000208a7000 CR3: 00000001d55f2000 CR4: 00000000001406f0 [ 52.490476] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.497771] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.505063] Kernel panic - not syncing: Fatal exception [ 52.511600] Kernel Offset: disabled [ 52.515231] Rebooting in 86400 seconds..