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unittests: Reproducer for empty OCTET STRINGs calling malloc(0)

This commit is contained in:
Jakub Jelen 2019-11-07 13:53:49 +01:00
parent 9a6cf6af3e
commit 586f0a3e42
1 changed files with 51 additions and 0 deletions
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51
src/tests/unittests/asn1.c
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@ -235,6 +235,54 @@ TORTURE_BIT_FIELD_ERROR(zero_invalid, "\x07", SC_ERROR_INVALID_ASN1_OBJECT)
/* Empty BIT FIELD is not valid */
TORTURE_BIT_FIELD_ERROR(empty, "", SC_ERROR_INVALID_ASN1_OBJECT)
/* Setup context */
static int setup_sc_context(void **state)
{
sc_context_t *ctx = NULL;
int rv;
rv = sc_establish_context(&ctx, "fuzz");
assert_non_null(ctx);
assert_int_equal(rv, SC_SUCCESS);
*state = ctx;
return 0;
}
/* Cleanup context */
static int teardown_sc_context(void **state)
{
sc_context_t *ctx = *state;
int rv;
rv = sc_release_context(ctx);
assert_int_equal(rv, SC_SUCCESS);
return 0;
}
static void torture_asn1_decode_entry_empty(void **state)
{
sc_context_t *ctx = *state;
/* Skipped the Tag and Length (0x04, 0x00) */
const u8 octet_string[0] = {};
struct sc_asn1_entry asn1_struct[2] = {
{ "direct", SC_ASN1_OCTET_STRING, SC_ASN1_CTX | SC_ASN1_CONS, SC_ASN1_ALLOC, NULL, NULL },
{ NULL, 0, 0, 0, NULL, NULL }
};
u8 *result = NULL;
size_t resultlen = 0;
int rv;
/* set the pointers to the expected results */
sc_format_asn1_entry(asn1_struct, &result, &resultlen, 0);
rv = asn1_decode_entry(ctx, asn1_struct, octet_string, 0, 1);
assert_int_equal(rv, SC_SUCCESS);
assert_int_equal(resultlen, 0);
assert_null(result);
}
int main(void)
{
@ -280,6 +328,9 @@ int main(void)
cmocka_unit_test(torture_asn1_bit_field_invalid_padding),
cmocka_unit_test(torture_asn1_bit_field_zero_invalid),
cmocka_unit_test(torture_asn1_bit_field_empty),
/* decode_entry() */
cmocka_unit_test_setup_teardown(torture_asn1_decode_entry_empty,
setup_sc_context, teardown_sc_context),
};
rc = cmocka_run_group_tests(tests, NULL, NULL);