Warning: Permanently added '10.128.0.78' (ECDSA) to the list of known hosts.
syzkaller login: [   50.703719][   T24] audit: type=1400 audit(1598768506.164:8): avc:  denied  { execmem } for  pid=6453 comm="syz-executor030" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
executing program
executing program
[   64.122164][ T6453] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88811f6e6500 (size 224):
  comm "syz-executor030", pid 6455, jiffies 4294943058 (age 12.370s)
  hex dump (first 32 bytes):
    a0 4c d8 1a 81 88 ff ff a0 4c d8 1a 81 88 ff ff  .L.......L......
    00 40 6c 17 81 88 ff ff 00 00 00 00 00 00 00 00  .@l.............
  backtrace:
    [<00000000f6af31db>] __build_skb+0x1f/0x100
    [<000000004135cf41>] __napi_alloc_skb+0xe5/0x140
    [<0000000070d18b5f>] napi_get_frags+0x3a/0x70
    [<0000000048860393>] tun_get_user+0xa43/0x1660
    [<000000001a8613a8>] tun_chr_write_iter+0x66/0xa0
    [<0000000014179daf>] do_iter_readv_writev+0x207/0x2d0
    [<0000000010a296cc>] do_iter_write+0xac/0x230
    [<0000000032a81239>] vfs_writev+0xc1/0x120
    [<000000009a7d3893>] do_writev+0x83/0x170
    [<00000000dba86b2d>] do_syscall_64+0x2d/0x70
    [<000000006643e98d>] entry_SYSCALL_64_after_hwframe+0x44/0xa9