Warning: Permanently added '10.128.0.129' (ECDSA) to the list of known hosts.
syzkaller login: [   57.516104][   T24] audit: type=1400 audit(1598915232.007:8): avc:  denied  { execmem } for  pid=6501 comm="syz-executor740" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
executing program
executing program
[   71.214904][ T3672] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
executing program
[   77.614605][ T6501] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff888118d14b00 (size 224):
  comm "syz-executor740", pid 6549, jiffies 4294944404 (age 12.480s)
  hex dump (first 32 bytes):
    a0 d4 8b 27 81 88 ff ff a0 d4 8b 27 81 88 ff ff  ...'.......'....
    00 40 99 27 81 88 ff ff 00 00 00 00 00 00 00 00  .@.'............
  backtrace:
    [<00000000da8acb44>] __build_skb+0x1f/0x100
    [<00000000d2b8df21>] __napi_alloc_skb+0xe5/0x140
    [<00000000f6307281>] napi_get_frags+0x3a/0x70
    [<000000009a35b20e>] tun_get_user+0xa43/0x1660
    [<00000000153b99ad>] tun_chr_write_iter+0x66/0xa0
    [<000000005bd97828>] new_sync_write+0x173/0x210
    [<00000000d6fb5295>] __kernel_write+0x140/0x1f0
    [<00000000ee1c47ae>] write_pipe_buf+0x61/0x80
    [<0000000021c320b9>] __splice_from_pipe+0x154/0x290
    [<00000000c8007805>] do_splice+0x772/0x8d0
    [<00000000900cd7a9>] __x64_sys_splice+0xaa/0x110
    [<00000000c355dea0>] do_syscall_64+0x2d/0x70
    [<00000000467c5845>] entry_SYSCALL_64_after_hwframe+0x44/0xa9