http://llvm.org/bugs/show_bug.cgi?id=16731
Bug ID: 16731
Summary: Static analyzer does not track pointer values across
memcpy
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Static Analyzer
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
$ cat leak.c
#include <stdlib.h>
char *f() {
void *x = malloc(47);
char *a;
memcpy(&a, &x, sizeof a);
return a;
}
$ clang --analyze leak.c
leak.c:7:3: warning: Potential leak of memory pointed to by 'x'
return a;
^~~~~~~~
1 warning generated.
This warning should not be reported, as the allocated memory is still
accessible using the return value of the function.
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