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Fix potential double-free in calloc selftest

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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>
This commit is contained in:
David Horstmann 2023-12-07 14:14:21 +00:00
parent 90d07118ad
commit 64cd2f21ed
1 changed files with 3 additions and 0 deletions
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3
programs/test/selftest.c
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@ -79,6 +79,7 @@ static int calloc_self_test(int verbose)
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");
@ -103,6 +104,7 @@ static int calloc_self_test(int verbose)
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");
@ -119,6 +121,7 @@ static int calloc_self_test(int verbose)
mbedtls_printf(" CALLOC(1): failed (same buffer twice)\n");
}
++failures;
buffer2 = NULL;
} else {
if (verbose) {
mbedtls_printf(" CALLOC(1): passed\n");