debug/macho: use saferio to read symbol table strings
No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
For #47653
Fixes #58603
Change-Id: I67fc45365c1a5b0b4b381f541bf2fee8ce8ddc3a
Reviewed-on: https://go-review.googlesource.com/c/go/+/469895
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com> Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>