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Don't try to allocate 0 size suites copy

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Juliusz Sosinowicz
2023-10-24 10:10:08 +02:00
parent 13cadbbe55
commit 4aad7589d6
1 changed files with 9 additions and 5 deletions
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14
src/ssl.c
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@@ -11656,7 +11656,7 @@ static int wolfSSL_parse_cipher_list(WOLFSSL_CTX* ctx, Suites* suites,
#ifndef WOLFSSL_SMALL_STACK
byte suitesCpy[WOLFSSL_MAX_SUITE_SZ];
#else
byte* suitesCpy;
byte* suitesCpy = NULL;
#endif
word16 suitesCpySz = 0;
word16 i = 0;
@@ -11696,12 +11696,16 @@ static int wolfSSL_parse_cipher_list(WOLFSSL_CTX* ctx, Suites* suites,
/* list contains ciphers either only for TLS 1.3 or <= TLS 1.2 */
#ifdef WOLFSSL_SMALL_STACK
suitesCpy = (byte*)XMALLOC(suites->suiteSz, NULL, DYNAMIC_TYPE_TMP_BUFFER);
if (suitesCpy == NULL)
return WOLFSSL_FAILURE;
if (suites->suiteSz > 0) {
suitesCpy = (byte*)XMALLOC(suites->suiteSz, NULL,
DYNAMIC_TYPE_TMP_BUFFER);
if (suitesCpy == NULL)
return WOLFSSL_FAILURE;
}
#endif
XMEMCPY(suitesCpy, suites->suites, suites->suiteSz);
if (suites->suiteSz > 0)
XMEMCPY(suitesCpy, suites->suites, suites->suiteSz);
suitesCpySz = suites->suiteSz;
ret = SetCipherList(ctx, suites, list);