Warning: Permanently added '10.128.0.9' (ECDSA) to the list of known hosts.
syzkaller login: [   57.655697][   T24] audit: type=1400 audit(1599796981.153:8): avc:  denied  { execmem } for  pid=6525 comm="syz-executor701" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
executing program
[   71.679456][ T3676] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff888119bb9c00 (size 224):
  comm "syz-executor701", pid 6526, jiffies 4294943785 (age 8.770s)
  hex dump (first 32 bytes):
    a0 14 5a 1c 81 88 ff ff a0 14 5a 1c 81 88 ff ff  ..Z.......Z.....
    00 c0 04 17 81 88 ff ff 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000b22e4123>] __build_skb+0x1f/0x100
    [<000000000dd118aa>] __napi_alloc_skb+0xe5/0x140
    [<00000000e2a6e1c5>] napi_get_frags+0x3a/0x70
    [<0000000035b6aaa5>] tun_get_user+0xa43/0x1660
    [<0000000029605ba5>] tun_chr_write_iter+0x66/0xa0
    [<0000000064bb9aba>] new_sync_write+0x173/0x210
    [<0000000012341000>] vfs_write+0x21d/0x280
    [<00000000a69641ba>] ksys_write+0x72/0x120
    [<0000000073bde20b>] do_syscall_64+0x2d/0x70
    [<00000000c9cee68a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9