Possibly better handling of MSAN reports #863
Description
I may be completely wrong here, but i'm under the impression that currently the reports
from memory sanitizer are deduplicated by the "Crash State", and then reported, correct?
Consider the following pseudo-code:
// both functions do some different stuff with memory
// but both of them do *not* init all of the memory
void f0(char* mem);
void f1(char* mem);
int main(int argc, char* argv[]) {
char buf[32];
if(argc == 1)
f0(&buf[0]);
else
f1(&buf[0]);
__msan_check_mem_is_initialized(&buf[0], sizeof(buf)); // ta-da!
}There are two distinct problems, but currently i believe oss-fuzz would only report one,
and only after it is fixed, report the second-one.