[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
Starting mcstransd: 
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] 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: [   43.462398][   T25] kauditd_printk_skb: 46 callbacks suppressed
[   43.462406][   T25] audit: type=1400 audit(1570436525.543:67): avc:  denied  { map } for  pid=6806 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 '10.128.0.41' (ECDSA) to the list of known hosts.
[   65.185990][   T25] audit: type=1400 audit(1570436547.263:68): avc:  denied  { map } for  pid=6818 comm="syz-executor271" path="/root/syz-executor271402106" 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
[   72.166244][ T6819] IPVS: ftp: loaded support on port[0] = 21
[   72.183322][ T6819] gfs2: gfs2 mount does not exist
[   78.256977][ T6818] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff888124d35400 (size 256):
  comm "syz-executor271", pid 6819, jiffies 4294944486 (age 8.300s)
  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:
    [<00000000790425ab>] kmem_cache_alloc_trace+0x145/0x2c0
    [<000000006b523f9a>] gfs2_init_fs_context+0x25/0x90
    [<000000004d18dd63>] gfs2_meta_init_fs_context+0x17/0x40
    [<000000008bd17315>] alloc_fs_context+0x174/0x200
    [<000000003997761a>] fs_context_for_mount+0x25/0x30
    [<00000000c764b5cf>] do_mount+0x881/0xc60
    [<000000001e444fd4>] ksys_mount+0xab/0x120
    [<000000001ed7b1fa>] __x64_sys_mount+0x26/0x30
    [<0000000050639678>] do_syscall_64+0x73/0x1f0
    [<00000000b356cbff>] entry_SYSCALL_64_after_hwframe+0x44/0xa9