[   23.793120][   T24] audit: type=1804 audit(1570694354.707:49): pid=6785 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="init" name="/run/utmp" dev="sda1" ino=1421 res=1
[   23.793128][   T24] audit: type=1804 audit(1570694354.707:50): pid=6785 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="init" name="/run/utmp" dev="sda1" ino=1421 res=1
[   23.836004][   T24] audit: type=1804 audit(1570694354.757:51): pid=6785 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="getty" name="/run/utmp" dev="sda1" ino=1421 res=1
[   23.836016][   T24] audit: type=1804 audit(1570694354.757:52): pid=6787 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="getty" name="/run/utmp" dev="sda1" ino=1421 res=1
[   23.851919][   T24] audit: type=1804 audit(1570694354.777:53): pid=6789 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="getty" name="/run/utmp" dev="sda1" ino=1421 res=1

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   34.696224][   T24] kauditd_printk_skb: 8 callbacks suppressed
[   34.696231][   T24] audit: type=1400 audit(1570694365.637:62): avc:  denied  { map } for  pid=6795 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 '10.128.0.130' (ECDSA) to the list of known hosts.
[   40.542644][   T24] audit: type=1400 audit(1570694371.487:63): avc:  denied  { map } for  pid=6809 comm="syz-executor377" path="/root/syz-executor377177050" dev="sda1" ino=16498 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
[   47.271730][ T6810] gfs2: gfs2 mount does not exist
executing program
[   53.076576][ T6811] gfs2: gfs2 mount does not exist
executing program
[   58.893195][ T6812] gfs2: gfs2 mount does not exist
executing program
[   64.696598][ T6813] gfs2: gfs2 mount does not exist
[   71.588128][ T3780] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
executing program
[   71.658618][ T6814] gfs2: gfs2 mount does not exist
executing program
[   77.493313][ T6815] gfs2: gfs2 mount does not exist
executing program
[   83.301252][ T6816] gfs2: gfs2 mount does not exist
executing program
[   89.127108][ T6817] gfs2: gfs2 mount does not exist
executing program
[   94.922964][ T6818] gfs2: gfs2 mount does not exist
executing program
[  100.721198][ T6819] gfs2: gfs2 mount does not exist
[  101.567308][ T6809] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88811ce20300 (size 256):
  comm "syz-executor377", pid 6818, jiffies 4294946766 (age 13.460s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000823718c3>] kmem_cache_alloc_trace+0x145/0x2c0
    [<00000000a254610a>] gfs2_init_fs_context+0x25/0x90
    [<00000000ca1e8629>] gfs2_meta_init_fs_context+0x17/0x40
    [<000000008678d82f>] alloc_fs_context+0x174/0x200
    [<0000000091ce247d>] fs_context_for_mount+0x25/0x30
    [<000000008d750af1>] do_mount+0x881/0xc60
    [<0000000003717fe9>] ksys_mount+0xab/0x120
    [<00000000fce33c57>] __x64_sys_mount+0x26/0x30
    [<00000000b9057772>] do_syscall_64+0x73/0x1f0
    [<00000000a664b7dc>] entry_SYSCALL_64_after_hwframe+0x44/0xa9