[compiler-rt] Don't pass null pointers to memcmp and memcpy in libFuzzer (PR #96775)

[David Benjamin via llvm-commits]

davidben wrote:

Like I said above, I do not have access to that. I think "member" just came about because I had a bugtracker account. Will ping in chat.

https://github.com/llvm/llvm-project/pull/96775