[  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 '10.128.0.155' (ECDSA) to the list of known hosts.
syzkaller login: [   59.701246][   T24] audit: type=1400 audit(1598534997.215:8): avc:  denied  { execmem } for  pid=6463 comm="syz-executor403" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
executing program
executing program
executing program
[   78.927585][ T6463] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88811cbfb900 (size 224):
  comm "syz-executor403", pid 6512, jiffies 4294944511 (age 12.710s)
  hex dump (first 32 bytes):
    a0 1c ec 19 81 88 ff ff a0 1c ec 19 81 88 ff ff  ................
    00 c0 49 27 81 88 ff ff 00 00 00 00 00 00 00 00  ..I'............
  backtrace:
    [<0000000046cb420b>] __build_skb+0x1f/0x100
    [<00000000e479d12d>] __napi_alloc_skb+0xe5/0x140
    [<0000000059242585>] napi_get_frags+0x3a/0x70
    [<00000000dd5ea788>] tun_get_user+0xa43/0x1660
    [<00000000ca065d7d>] tun_chr_write_iter+0x66/0xa0
    [<000000003bbb0232>] new_sync_write+0x173/0x210
    [<000000002d35e338>] vfs_write+0x21d/0x280
    [<0000000098d52e31>] ksys_write+0x72/0x120
    [<0000000081d465e0>] do_syscall_64+0x2d/0x70
    [<00000000337e5ccb>] entry_SYSCALL_64_after_hwframe+0x44/0xa9