Warning: Permanently added '10.128.1.36' (ECDSA) to the list of known hosts.
syzkaller login: [   80.192530][   T24] audit: type=1400 audit(1599782501.479:8): avc:  denied  { execmem } for  pid=6478 comm="syz-executor656" 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
[   99.413267][ T6478] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff8881177a5700 (size 224):
  comm "syz-executor656", pid 6526, jiffies 4294946565 (age 12.850s)
  hex dump (first 32 bytes):
    a0 3c 05 19 81 88 ff ff a0 3c 05 19 81 88 ff ff  .<.......<......
    00 c0 d8 2a 81 88 ff ff 00 00 00 00 00 00 00 00  ...*............
  backtrace:
    [<00000000fef011fa>] __build_skb+0x1f/0x100
    [<000000006d86a621>] __napi_alloc_skb+0xe5/0x140
    [<000000001d1a2d35>] napi_get_frags+0x3a/0x70
    [<00000000ef2b87b6>] tun_get_user+0xa43/0x1660
    [<0000000068c53499>] tun_chr_write_iter+0x66/0xa0
    [<00000000092b33dd>] new_sync_write+0x173/0x210
    [<000000007bd1e1f6>] __kernel_write+0x140/0x1f0
    [<00000000636754eb>] write_pipe_buf+0x61/0x80
    [<0000000088c1ab5b>] __splice_from_pipe+0x154/0x290
    [<000000008f3fac28>] do_splice+0x772/0x8d0
    [<000000001dad9a5c>] __x64_sys_splice+0xaa/0x110
    [<00000000df945bc6>] do_syscall_64+0x2d/0x70
    [<00000000f7992db5>] entry_SYSCALL_64_after_hwframe+0x44/0xa9