[compiler-rt] [sanitizer_common] Return nullptr on ASan allocator commitment error (PR #119753)

[David Justo via llvm-commits]

davidmrdavid wrote:

Since the PR description is empty, just calling out that this is related to: https://github.com/llvm/llvm-project/pull/117929#discussion_r1881342609

https://github.com/llvm/llvm-project/pull/119753