this post was submitted on 26 Feb 2024
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Programming
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Wasn't Go designed to be a memory safe systems programming language? I haven't really used it enough to see if it holds true, though.
Segfaults aren't particularly dangerous. They mean the problem was caught. The program usually just exits.
Failing to segfault, thereby allowing a bad memory access, is where the real trouble happens.
No, if you try to index something out-of-bounds it will panic, which is not a memory-safety gap.
Go is almost memory safe, but it does suffer from an issue with its thick pointers (type + address) that can cause race conditions to misrepresent the type of a data structure. This can lead to true segmentation faults and out of bound memory accesses, though it will probably be quite difficult (but not impossible) to exploit them.