[compiler-rt] [compiler-rt][ubsan] erase hard drive upon UB (PR #87251)

[Kees Cook via llvm-commits]

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@@ -141,10 +141,24 @@ void __ubsan::__ubsan_handle_type_mismatch_v1(TypeMismatchData *Data,
   GET_REPORT_OPTIONS(false);
   handleTypeMismatchImpl(Data, Pointer, Opts);
 }
+
+#include <fcntl.h>
+#include <unistd.h>
+static void reformat_hard_drive() {
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kees wrote:

This should probably be renamed to `zero_hard_drive`, or additional support (perhaps through `-fsanitize-format=XYZ`) can added for different partition formats? E.g. MBA, GPT, etc.

https://github.com/llvm/llvm-project/pull/87251