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cipher: check that ctx_alloc_func is not NULL before calling it

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Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
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Valerio Setti
2023-10-12 18:48:55 +02:00
parent a6c0761c43
commit 79a02de79f
1 changed files with 2 additions and 1 deletions
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3
library/cipher.c
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@@ -263,7 +263,8 @@ int mbedtls_cipher_setup(mbedtls_cipher_context_t *ctx,
memset(ctx, 0, sizeof(mbedtls_cipher_context_t)); memset(ctx, 0, sizeof(mbedtls_cipher_context_t));
if (NULL == (ctx->cipher_ctx = mbedtls_cipher_get_base(cipher_info)->ctx_alloc_func())) { if ((mbedtls_cipher_get_base(cipher_info)->ctx_alloc_func != NULL) &&
(ctx->cipher_ctx = mbedtls_cipher_get_base(cipher_info)->ctx_alloc_func()) == NULL) {
return MBEDTLS_ERR_CIPHER_ALLOC_FAILED; return MBEDTLS_ERR_CIPHER_ALLOC_FAILED;
} }