[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
Starting mcstransd: 
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   42.560857][   T25] kauditd_printk_skb: 42 callbacks suppressed
[   42.560864][   T25] audit: type=1400 audit(1570300489.022:63): avc:  denied  { map } for  pid=6792 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 '10.128.10.23' (ECDSA) to the list of known hosts.
[   48.314406][   T25] audit: type=1400 audit(1570300494.772:64): avc:  denied  { map } for  pid=6804 comm="syz-executor426" path="/root/syz-executor426152335" 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
executing program
[   66.337561][ T6804] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
[   68.239058][ T6804] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff8881113d7300 (size 256):
  comm "syz-executor426", pid 6805, jiffies 4294942771 (age 13.320s)
  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:
    [<000000008a4d3108>] kmem_cache_alloc_trace+0x145/0x2c0
    [<000000000aa4db8b>] gfs2_init_fs_context+0x25/0x90
    [<00000000cd1128b2>] gfs2_meta_init_fs_context+0x17/0x40
    [<00000000b685cd62>] alloc_fs_context+0x174/0x200
    [<00000000a786c7cc>] fs_context_for_mount+0x25/0x30
    [<00000000dab6a0b3>] do_mount+0x881/0xc60
    [<0000000020f34e35>] ksys_mount+0xab/0x120
    [<00000000ba7e5d16>] __x64_sys_mount+0x26/0x30
    [<00000000ace903e6>] do_syscall_64+0x73/0x1f0
    [<00000000ff9b76bb>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88812089aa00 (size 256):
  comm "syz-executor426", pid 6806, jiffies 4294943345 (age 7.580s)
  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:
    [<000000008a4d3108>] kmem_cache_alloc_trace+0x145/0x2c0
    [<000000000aa4db8b>] gfs2_init_fs_context+0x25/0x90
    [<00000000cd1128b2>] gfs2_meta_init_fs_context+0x17/0x40
    [<00000000b685cd62>] alloc_fs_context+0x174/0x200
    [<00000000a786c7cc>] fs_context_for_mount+0x25/0x30
    [<00000000dab6a0b3>] do_mount+0x881/0xc60
    [<0000000020f34e35>] ksys_mount+0xab/0x120
    [<00000000ba7e5d16>] __x64_sys_mount+0x26/0x30
    [<00000000ace903e6>] do_syscall_64+0x73/0x1f0
    [<00000000ff9b76bb>] entry_SYSCALL_64_after_hwframe+0x44/0xa9