Fix potential double-free in calloc selftest
Where calloc returns two references to the same buffer, avoid calling
free() on both references by setting one to NULL.
Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/programs/test/selftest.c b/programs/test/selftest.c
index 2b78a8c..b9ba1e4 100644
--- a/programs/test/selftest.c
+++ b/programs/test/selftest.c
@@ -83,6 +83,7 @@
if (verbose) {
mbedtls_printf(" CALLOC(0,1): passed (same non-null)\n");
}
+ empty2 = NULL;
} else {
if (verbose) {
mbedtls_printf(" CALLOC(0,1): passed (distinct non-null)\n");
@@ -107,6 +108,7 @@
if (verbose) {
mbedtls_printf(" CALLOC(1,0): passed (same non-null)\n");
}
+ empty2 = NULL;
} else {
if (verbose) {
mbedtls_printf(" CALLOC(1,0): passed (distinct non-null)\n");
@@ -123,6 +125,7 @@
mbedtls_printf(" CALLOC(1): failed (same buffer twice)\n");
}
++failures;
+ buffer2 = NULL;
} else {
if (verbose) {
mbedtls_printf(" CALLOC(1): passed\n");