[ 64.694655][ T26] audit: type=1800 audit(1563582778.738:26): pid=9316 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. [ 65.818992][ T26] kauditd_printk_skb: 2 callbacks suppressed [ 65.819005][ T26] audit: type=1800 audit(1563582779.888:29): pid=9316 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 [ 65.845445][ T26] audit: type=1800 audit(1563582779.888:30): pid=9316 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 '10.128.0.82' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 76.541399][ T9468] netlink: 4 bytes leftover after parsing attributes in process `syz-executor462'. [ 76.550825][ T9468] kasan: CONFIG_KASAN_INLINE enabled [ 76.556153][ T9468] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 76.564453][ T9468] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 76.571388][ T9468] CPU: 0 PID: 9468 Comm: syz-executor462 Not tainted 5.2.0+ #67 [ 76.578998][ T9468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.589058][ T9468] RIP: 0010:tcf_ife_init+0x25c/0x1850 [ 76.594423][ T9468] Code: 00 00 48 c7 c7 80 bf da 88 e8 c0 6d a2 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 [ 76.614026][ T9468] RSP: 0018:ffff8880931aeeb8 EFLAGS: 00010246 [ 76.620078][ T9468] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110129f99e8 [ 76.628036][ T9468] RDX: 0000000000000000 RSI: 1ffff110129f99ef RDI: 0000000000000286 [ 76.636021][ T9468] RBP: ffff8880931af060 R08: 0000000000000002 R09: ffff888094fccf48 [ 76.643978][ T9468] R10: fffffbfff1349ef7 R11: ffffffff89a4f7bf R12: 0000000000000001 [ 76.651937][ T9468] R13: ffff88809b715200 R14: ffff8880931af8c0 R15: 0000000000000000 [ 76.659894][ T9468] FS: 0000555556521880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 76.668830][ T9468] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.675432][ T9468] CR2: 0000000020000180 CR3: 000000009c441000 CR4: 00000000001406f0 [ 76.683405][ T9468] Call Trace: [ 76.686703][ T9468] ? tc_lookup_action_n+0xd2/0x100 [ 76.691795][ T9468] ? __add_metainfo+0x480/0x480 [ 76.696634][ T9468] ? tc_lookup_action_n+0xd2/0x100 [ 76.701746][ T9468] ? __kasan_check_read+0x11/0x20 [ 76.706757][ T9468] ? lock_downgrade+0x920/0x920 [ 76.711597][ T9468] ? __kasan_check_write+0x14/0x20 [ 76.716695][ T9468] ? do_raw_read_unlock+0x3f/0x70 [ 76.721726][ T9468] tcf_action_init_1+0x6f2/0xa80 [ 76.726650][ T9468] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.732895][ T9468] ? tcf_action_dump_old+0x80/0x80 [ 76.737996][ T9468] ? lock_downgrade+0x920/0x920 [ 76.742831][ T9468] ? __kasan_check_read+0x11/0x20 [ 76.747862][ T9468] ? mark_lock+0xc0/0x11e0 [ 76.752264][ T9468] tcf_action_init+0x241/0x360 [ 76.757007][ T9468] ? tcf_action_init_1+0xa80/0xa80 [ 76.762126][ T9468] ? mark_lock+0xc0/0x11e0 [ 76.766531][ T9468] ? mark_lock+0xc0/0x11e0 [ 76.770933][ T9468] ? __kasan_check_read+0x11/0x20 [ 76.775957][ T9468] tcf_action_add+0xe8/0x370 [ 76.780534][ T9468] ? tca_action_gd+0x1710/0x1710 [ 76.785452][ T9468] ? refcount_dec_not_one+0x1f0/0x1f0 [ 76.790810][ T9468] ? __nla_parse+0x43/0x60 [ 76.795213][ T9468] tc_ctl_action+0x3b5/0x4bc [ 76.799795][ T9468] ? tcf_action_add+0x370/0x370 [ 76.804636][ T9468] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.810890][ T9468] ? tcf_action_add+0x370/0x370 [ 76.815879][ T9468] rtnetlink_rcv_msg+0x463/0xb00 [ 76.820819][ T9468] ? rtnetlink_put_metrics+0x580/0x580 [ 76.826261][ T9468] ? lock_downgrade+0x920/0x920 [ 76.831100][ T9468] ? netlink_deliver_tap+0x22d/0xbf0 [ 76.836384][ T9468] ? find_held_lock+0x35/0x130 [ 76.841133][ T9468] netlink_rcv_skb+0x177/0x450 [ 76.845892][ T9468] ? rtnetlink_put_metrics+0x580/0x580 [ 76.851350][ T9468] ? netlink_ack+0xb30/0xb30 [ 76.855932][ T9468] ? __kasan_check_read+0x11/0x20 [ 76.860967][ T9468] ? netlink_deliver_tap+0x254/0xbf0 [ 76.866241][ T9468] rtnetlink_rcv+0x1d/0x30 [ 76.870642][ T9468] netlink_unicast+0x531/0x710 [ 76.875511][ T9468] ? netlink_attachskb+0x7c0/0x7c0 [ 76.880607][ T9468] ? _copy_from_iter_full+0x25d/0x8a0 [ 76.885968][ T9468] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 76.891668][ T9468] ? __check_object_size+0x3d/0x43c [ 76.896859][ T9468] netlink_sendmsg+0x8a5/0xd60 [ 76.901608][ T9468] ? netlink_unicast+0x710/0x710 [ 76.906527][ T9468] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 76.912062][ T9468] ? apparmor_socket_sendmsg+0x2a/0x30 [ 76.917518][ T9468] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.923746][ T9468] ? security_socket_sendmsg+0x8d/0xc0 [ 76.929201][ T9468] ? netlink_unicast+0x710/0x710 [ 76.934150][ T9468] sock_sendmsg+0xd7/0x130 [ 76.938566][ T9468] ___sys_sendmsg+0x803/0x920 [ 76.943232][ T9468] ? copy_msghdr_from_user+0x440/0x440 [ 76.948675][ T9468] ? prep_transhuge_page+0xa0/0xa0 [ 76.953772][ T9468] ? percpu_counter_add_batch+0x13c/0x190 [ 76.959472][ T9468] ? __do_page_fault+0x56a/0xdd0 [ 76.964390][ T9468] ? find_held_lock+0x35/0x130 [ 76.969130][ T9468] ? __do_page_fault+0x56a/0xdd0 [ 76.974056][ T9468] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.980284][ T9468] ? __fget_light+0x1a9/0x230 [ 76.984942][ T9468] ? __fdget+0x1b/0x20 [ 76.988989][ T9468] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 76.995213][ T9468] __sys_sendmsg+0x105/0x1d0 [ 76.999782][ T9468] ? __sys_sendmsg_sock+0xd0/0xd0 [ 77.004785][ T9468] ? down_read_non_owner+0x450/0x450 [ 77.010054][ T9468] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 77.015499][ T9468] ? do_syscall_64+0x26/0x6a0 [ 77.020244][ T9468] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.026305][ T9468] ? do_syscall_64+0x26/0x6a0 [ 77.030981][ T9468] __x64_sys_sendmsg+0x78/0xb0 [ 77.035728][ T9468] do_syscall_64+0xfd/0x6a0 [ 77.040212][ T9468] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.046102][ T9468] RIP: 0033:0x4401d9 [ 77.049984][ T9468] 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 [ 77.069591][ T9468] RSP: 002b:00007ffd6bad0968 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 77.078001][ T9468] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401d9 [ 77.085964][ T9468] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 77.093925][ T9468] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 77.101880][ T9468] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a60 [ 77.109838][ T9468] R13: 0000000000401af0 R14: 0000000000000000 R15: 0000000000000000 [ 77.117804][ T9468] Modules linked in: [ 77.123361][ T9468] ---[ end trace f5a53694c402b99a ]--- [ 77.128903][ T9468] RIP: 0010:tcf_ife_init+0x25c/0x1850 [ 77.134357][ T9468] Code: 00 00 48 c7 c7 80 bf da 88 e8 c0 6d a2 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 [ 77.153995][ T9468] RSP: 0018:ffff8880931aeeb8 EFLAGS: 00010246 [ 77.160233][ T9468] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110129f99e8 [ 77.168243][ T9468] RDX: 0000000000000000 RSI: 1ffff110129f99ef RDI: 0000000000000286 [ 77.176258][ T9468] RBP: ffff8880931af060 R08: 0000000000000002 R09: ffff888094fccf48 [ 77.184254][ T9468] R10: fffffbfff1349ef7 R11: ffffffff89a4f7bf R12: 0000000000000001 [ 77.192242][ T9468] R13: ffff88809b715200 R14: ffff8880931af8c0 R15: 0000000000000000 [ 77.200250][ T9468] FS: 0000555556521880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 77.209217][ T9468] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.215799][ T9468] CR2: 0000000020000180 CR3: 000000009c441000 CR4: 00000000001406f0 [ 77.223797][ T9468] Kernel panic - not syncing: Fatal exception [ 77.230883][ T9468] Kernel Offset: disabled [ 77.235207][ T9468] Rebooting in 86400 seconds..