Commit e413f9f1 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf genelf: Use zfree() to reduce chances of use after free 



Do defensive programming by using zfree() to initialize freed pointers
to NULL, so that eventual use after free result in a NULL pointer deref
instead of more subtle behaviour.

Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 2bfc8134

tools/perf/util/genelf_debug.c

+2 −1
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ 
 * @author Philippe Elie

 */

#include <linux/compiler.h>

#include <linux/zalloc.h>

#include <sys/types.h>

#include <stdio.h>

#include <getopt.h>
@@ -90,7 +91,7 @@ buffer_ext_init(struct buffer_ext *be) 
static void

buffer_ext_exit(struct buffer_ext *be)

{

	free(be->data);

	zfree(&be->data);

}



static inline size_t