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ssl_tls.c: Fix unchecked memory allocation

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Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
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Andrzej Kurek 2020-10-22 11:40:41 +02:00
parent 21afee2304
commit 28b3b29306
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1 changed files with 5 additions and 0 deletions
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5
library/ssl_tls.c
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@ -1662,6 +1662,11 @@ int ssl_populate_transform( mbedtls_ssl_transform *transform,
transform->key_enc = mbedtls_calloc( 1, cipher_info->key_bitlen >> 3 ); transform->key_enc = mbedtls_calloc( 1, cipher_info->key_bitlen >> 3 );
transform->key_dec = mbedtls_calloc( 1, cipher_info->key_bitlen >> 3 ); transform->key_dec = mbedtls_calloc( 1, cipher_info->key_bitlen >> 3 );
if( transform->key_enc == NULL || transform->key_dec == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to allocate cipher keys" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
memcpy( transform->key_enc, key1, cipher_info->key_bitlen >> 3 ); memcpy( transform->key_enc, key1, cipher_info->key_bitlen >> 3 );
memcpy( transform->key_dec, key2, cipher_info->key_bitlen >> 3 ); memcpy( transform->key_dec, key2, cipher_info->key_bitlen >> 3 );