[   23.821450][   T24] audit: type=1800 audit(1571314750.839:40): pid=6732 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   25.691642][   T24] audit: type=1400 audit(1571314752.739:41): avc:  denied  { map } for  pid=6902 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
Warning: Permanently added '10.128.0.101' (ECDSA) to the list of known hosts.
[   46.570392][   T24] audit: type=1400 audit(1571314773.609:42): avc:  denied  { map } for  pid=6919 comm="syz-executor655" path="/root/syz-executor655612227" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
executing program
[   53.348156][   T24] audit: type=1400 audit(1571314780.389:43): avc:  denied  { create } for  pid=6920 comm="syz-executor655" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
[   53.348851][ T6920] netlink: 'syz-executor655': attribute type 2 has an invalid length.
[   53.373354][   T24] audit: type=1400 audit(1571314780.389:44): avc:  denied  { write } for  pid=6920 comm="syz-executor655" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
executing program
[   59.224121][ T6921] netlink: 'syz-executor655': attribute type 2 has an invalid length.
executing program
[   65.051609][ T6922] netlink: 'syz-executor655': attribute type 2 has an invalid length.
[   65.938925][ T6919] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88811ca91480 (size 128):
  comm "syz-executor655", pid 6921, jiffies 4294943191 (age 14.660s)
  hex dump (first 32 bytes):
    00 90 c2 19 81 88 ff ff 80 8e ec 1b 81 88 ff ff  ................
    00 23 8d 24 81 88 ff ff 00 00 00 00 00 00 00 00  .#.$............
  backtrace:
    [<0000000098de8570>] kmem_cache_alloc_trace+0x145/0x2c0
    [<0000000092f663c2>] ovs_vport_alloc+0x37/0xf0
    [<00000000c15c2d10>] internal_dev_create+0x24/0x1d0
    [<000000005cd3b89a>] ovs_vport_add+0x81/0x190
    [<000000008d0050c2>] new_vport+0x19/0x80
    [<00000000b868948e>] ovs_dp_cmd_new+0x290/0x410
    [<0000000026d4aa68>] genl_family_rcv_msg+0x2ab/0x5b0
    [<000000002bcb7832>] genl_rcv_msg+0x54/0xa0
    [<00000000bebef8c5>] netlink_rcv_skb+0x61/0x170
    [<00000000fdf96f58>] genl_rcv+0x29/0x40
    [<00000000334e9718>] netlink_unicast+0x1ec/0x2d0
    [<00000000829d7237>] netlink_sendmsg+0x270/0x480
    [<00000000626b3067>] sock_sendmsg+0x54/0x70
    [<0000000081ba090f>] ___sys_sendmsg+0x393/0x3c0
    [<000000002462f4e6>] __sys_sendmsg+0x80/0xf0
    [<00000000a13bdee8>] __x64_sys_sendmsg+0x23/0x30