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inet_pton: help ASan find the underflow

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The generated unit tests have the input parameters in large stack
buffers and therefore ASan doesn't notice under or overflows in them.
Copy the input parameter into a locally allocated buffer to trigger ASan
if something goes wrong.

Signed-off-by: Janos Follath <janos.follath@arm.com>
This commit is contained in:
Janos Follath
2026-01-20 18:19:33 +00:00
parent 346720d674
commit d5e7465ea0
1 changed files with 11 additions and 1 deletions
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12
tests/suites/test_suite_x509parse.function
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@@ -488,12 +488,22 @@ exit:
void x509_crt_parse_cn_inet_pton(const char *cn, data_t *exp, int ref_ret)
{
uint32_t addr[4];
size_t addrlen = mbedtls_x509_crt_parse_cn_inet_pton(cn, addr);
char *cn_local = NULL;
size_t cn_local_len = strlen(cn) + 1;
TEST_CALLOC(cn_local, cn_local_len);
memcpy(cn_local, cn, cn_local_len);
size_t addrlen = mbedtls_x509_crt_parse_cn_inet_pton(cn_local, addr);
TEST_EQUAL(addrlen, (size_t) ref_ret);
if (addrlen) {
TEST_MEMORY_COMPARE(exp->x, exp->len, addr, addrlen);
}
exit:
mbedtls_free(cn_local);
}
/* END_CASE */