[  OK  ] Reached target Login Prompts.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.


Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.87' (ECDSA) to the list of known hosts.
syzkaller login: [   64.132877][   T24] audit: type=1400 audit(1599929402.879:8): avc:  denied  { execmem } for  pid=6488 comm="syz-executor035" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
executing program
executing program
[   79.491468][ T6488] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff888119222100 (size 224):
  comm "syz-executor035", pid 6490, jiffies 4294944548 (age 13.210s)
  hex dump (first 32 bytes):
    a0 a4 b8 27 81 88 ff ff a0 a4 b8 27 81 88 ff ff  ...'.......'....
    00 00 2c 18 81 88 ff ff 00 00 00 00 00 00 00 00  ..,.............
  backtrace:
    [<000000005d75fd50>] __build_skb+0x1f/0x100
    [<0000000083a7912f>] __napi_alloc_skb+0xe5/0x140
    [<0000000079b9f2ba>] napi_get_frags+0x3a/0x70
    [<00000000f766df3f>] tun_get_user+0xa43/0x1660
    [<00000000ecb878d0>] tun_chr_write_iter+0x66/0xa0
    [<00000000f2efa114>] new_sync_write+0x173/0x210
    [<00000000084fd896>] vfs_write+0x21d/0x280
    [<00000000e5e72dcc>] ksys_write+0x72/0x120
    [<00000000a263cd98>] do_syscall_64+0x2d/0x70
    [<000000006997386a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9