[ 62.626565][ T27] audit: type=1800 audit(1563576842.690:25): pid=9073 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 62.666208][ T27] audit: type=1800 audit(1563576842.700:26): pid=9073 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 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. [ 63.566591][ T27] kauditd_printk_skb: 3 callbacks suppressed [ 63.566604][ T27] audit: type=1800 audit(1563576843.640:30): pid=9073 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 '10.128.0.250' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 70.632572][ T9227] netlink: 4 bytes leftover after parsing attributes in process `syz-executor031'. [ 70.641982][ T9227] kasan: CONFIG_KASAN_INLINE enabled [ 70.647386][ T9227] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 70.655452][ T9227] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 70.662380][ T9227] CPU: 0 PID: 9227 Comm: syz-executor031 Not tainted 5.2.0-next-20190718 #41 [ 70.671114][ T9227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.681157][ T9227] RIP: 0010:tcf_ife_init+0x25c/0x1850 [ 70.686509][ T9227] Code: 00 00 48 c7 c7 80 c0 da 88 e8 10 6e a1 fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c7 85 e8 fe ff ff 00 00 00 00 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 e2 [ 70.706094][ T9227] RSP: 0018:ffff888089f36eb8 EFLAGS: 00010246 [ 70.712150][ T9227] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110116851f1 [ 70.720098][ T9227] RDX: 0000000000000000 RSI: 1ffff110116851f8 RDI: 0000000000000282 [ 70.728145][ T9227] RBP: ffff888089f37060 R08: 0000000000000002 R09: ffff88808b428f90 [ 70.736106][ T9227] R10: fffffbfff134a3ff R11: ffffffff89a51fff R12: 0000000000000001 [ 70.744080][ T9227] R13: ffff88821678e480 R14: ffff888089f378c0 R15: 0000000000000000 [ 70.752048][ T9227] FS: 0000555555dfd880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 70.760951][ T9227] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.767530][ T9227] CR2: 0000000020000180 CR3: 000000008a973000 CR4: 00000000001406f0 [ 70.775502][ T9227] Call Trace: [ 70.778800][ T9227] ? tc_lookup_action_n+0xd2/0x100 [ 70.783890][ T9227] ? __add_metainfo+0x480/0x480 [ 70.788717][ T9227] ? tc_lookup_action_n+0xd2/0x100 [ 70.793920][ T9227] ? __kasan_check_read+0x11/0x20 [ 70.798932][ T9227] ? lock_downgrade+0x920/0x920 [ 70.803774][ T9227] ? __kasan_check_write+0x14/0x20 [ 70.808881][ T9227] ? do_raw_read_unlock+0x3f/0x70 [ 70.813885][ T9227] tcf_action_init_1+0x6f2/0xa80 [ 70.818807][ T9227] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.825023][ T9227] ? tcf_action_dump_old+0x80/0x80 [ 70.830115][ T9227] ? lock_downgrade+0x920/0x920 [ 70.834946][ T9227] ? __kasan_check_read+0x11/0x20 [ 70.839948][ T9227] ? mark_lock+0xc0/0x11e0 [ 70.844339][ T9227] tcf_action_init+0x241/0x360 [ 70.849103][ T9227] ? tcf_action_init_1+0xa80/0xa80 [ 70.854190][ T9227] ? mark_lock+0xc0/0x11e0 [ 70.858595][ T9227] ? mark_lock+0xc0/0x11e0 [ 70.863484][ T9227] ? __kasan_check_read+0x11/0x20 [ 70.868486][ T9227] tcf_action_add+0xe8/0x370 [ 70.873054][ T9227] ? tca_action_gd+0x1710/0x1710 [ 70.877974][ T9227] ? refcount_dec_not_one+0x1f0/0x1f0 [ 70.883336][ T9227] ? __nla_parse+0x43/0x60 [ 70.887731][ T9227] tc_ctl_action+0x3b5/0x4bc [ 70.892319][ T9227] ? tcf_action_add+0x370/0x370 [ 70.897151][ T9227] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.903364][ T9227] ? tcf_action_add+0x370/0x370 [ 70.908198][ T9227] rtnetlink_rcv_msg+0x463/0xb00 [ 70.913113][ T9227] ? rtnetlink_put_metrics+0x580/0x580 [ 70.918550][ T9227] ? lock_downgrade+0x920/0x920 [ 70.923375][ T9227] ? netlink_deliver_tap+0x22d/0xbf0 [ 70.928736][ T9227] ? find_held_lock+0x35/0x130 [ 70.933477][ T9227] netlink_rcv_skb+0x177/0x450 [ 70.938217][ T9227] ? rtnetlink_put_metrics+0x580/0x580 [ 70.943651][ T9227] ? netlink_ack+0xb30/0xb30 [ 70.948216][ T9227] ? __kasan_check_read+0x11/0x20 [ 70.953217][ T9227] ? netlink_deliver_tap+0x254/0xbf0 [ 70.958477][ T9227] rtnetlink_rcv+0x1d/0x30 [ 70.962886][ T9227] netlink_unicast+0x531/0x710 [ 70.967628][ T9227] ? netlink_attachskb+0x7c0/0x7c0 [ 70.972711][ T9227] ? _copy_from_iter_full+0x25d/0x8a0 [ 70.978061][ T9227] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 70.983760][ T9227] ? __check_object_size+0x3d/0x43c [ 70.988937][ T9227] netlink_sendmsg+0x8a5/0xd60 [ 70.993700][ T9227] ? netlink_unicast+0x710/0x710 [ 70.998627][ T9227] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 71.004148][ T9227] ? apparmor_socket_sendmsg+0x2a/0x30 [ 71.009670][ T9227] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 71.015885][ T9227] ? security_socket_sendmsg+0x8d/0xc0 [ 71.021329][ T9227] ? netlink_unicast+0x710/0x710 [ 71.026246][ T9227] sock_sendmsg+0xd7/0x130 [ 71.030640][ T9227] ___sys_sendmsg+0x803/0x920 [ 71.035301][ T9227] ? copy_msghdr_from_user+0x440/0x440 [ 71.040740][ T9227] ? prep_transhuge_page+0xa0/0xa0 [ 71.045826][ T9227] ? percpu_counter_add_batch+0x13c/0x190 [ 71.051526][ T9227] ? __do_page_fault+0x56a/0xdd0 [ 71.056442][ T9227] ? find_held_lock+0x35/0x130 [ 71.061179][ T9227] ? __do_page_fault+0x56a/0xdd0 [ 71.066111][ T9227] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 71.072329][ T9227] ? __fget_light+0x1a9/0x230 [ 71.076984][ T9227] ? __fdget+0x1b/0x20 [ 71.081030][ T9227] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 71.087257][ T9227] __sys_sendmsg+0x105/0x1d0 [ 71.091843][ T9227] ? __sys_sendmsg_sock+0xd0/0xd0 [ 71.096850][ T9227] ? down_read_non_owner+0x450/0x450 [ 71.102132][ T9227] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 71.107572][ T9227] ? do_syscall_64+0x26/0x6a0 [ 71.112224][ T9227] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 71.118264][ T9227] ? do_syscall_64+0x26/0x6a0 [ 71.122922][ T9227] __x64_sys_sendmsg+0x78/0xb0 [ 71.127661][ T9227] do_syscall_64+0xfd/0x6a0 [ 71.132159][ T9227] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 71.138027][ T9227] RIP: 0033:0x4401d9 [ 71.141900][ T9227] 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 [ 71.161481][ T9227] RSP: 002b:00007ffd6128ff18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 71.169868][ T9227] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401d9 [ 71.177814][ T9227] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 71.185758][ T9227] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 71.193719][ T9227] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a60 [ 71.201683][ T9227] R13: 0000000000401af0 R14: 0000000000000000 R15: 0000000000000000 [ 71.209635][ T9227] Modules linked in: [ 71.216542][ T9227] ---[ end trace e307ecc485ee9b11 ]--- [ 71.222020][ T9227] RIP: 0010:tcf_ife_init+0x25c/0x1850 [ 71.227442][ T9227] Code: 00 00 48 c7 c7 80 c0 da 88 e8 10 6e a1 fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c7 85 e8 fe ff ff 00 00 00 00 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 e2 [ 71.247334][ T9227] RSP: 0018:ffff888089f36eb8 EFLAGS: 00010246 [ 71.253382][ T9227] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110116851f1 [ 71.261369][ T9227] RDX: 0000000000000000 RSI: 1ffff110116851f8 RDI: 0000000000000282 [ 71.269357][ T9227] RBP: ffff888089f37060 R08: 0000000000000002 R09: ffff88808b428f90 [ 71.277348][ T9227] R10: fffffbfff134a3ff R11: ffffffff89a51fff R12: 0000000000000001 [ 71.285314][ T9227] R13: ffff88821678e480 R14: ffff888089f378c0 R15: 0000000000000000 [ 71.293331][ T9227] FS: 0000555555dfd880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 71.302271][ T9227] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.308867][ T9227] CR2: 0000000020000180 CR3: 000000008a973000 CR4: 00000000001406f0 [ 71.316868][ T9227] Kernel panic - not syncing: Fatal exception [ 71.323829][ T9227] Kernel Offset: disabled [ 71.328147][ T9227] Rebooting in 86400 seconds..