https://llvm.org/bugs/show_bug.cgi?id=28789
Bug ID: 28789
Summary: Uninitialized memory read in printf is not detected by
memory sanitizer
Product: clang
Version: 3.8
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: halya...@chromium.org
CC: k...@google.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
The following program doesn't crash when compiled with memory sanitizer
(without libc instrumentation).
#include <stdio.h>
int main() {
int x = 1;
printf("%lld %lld %lld %lld %lld %lld\n", x, x, x, x, x, x);
}
It prints "1 1 1 1 1 <huge_number>" but sanitizer is silent.
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