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Improve parameter validation in mbedtls_gcm_free()

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This commit is contained in:
k-stachowiak 2018-12-13 17:11:58 +01:00
parent 9af22e4790
commit 21298a20c4
2 changed files with 2 additions and 3 deletions
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2
include/mbedtls/gcm.h
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@ -298,7 +298,7 @@ int mbedtls_gcm_finish( mbedtls_gcm_context *ctx,
* cipher sub-context. * cipher sub-context.
* *
* \param ctx The GCM context to clear. If this is \c NULL, the call has * \param ctx The GCM context to clear. If this is \c NULL, the call has
* no effect. * no effect. Otherwise, this must be initialized.
*/ */
void mbedtls_gcm_free( mbedtls_gcm_context *ctx ); void mbedtls_gcm_free( mbedtls_gcm_context *ctx );

3
library/gcm.c
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@ -541,9 +541,8 @@ int mbedtls_gcm_auth_decrypt( mbedtls_gcm_context *ctx,
void mbedtls_gcm_free( mbedtls_gcm_context *ctx ) void mbedtls_gcm_free( mbedtls_gcm_context *ctx )
{ {
if( ctx == NULL ) { if( ctx == NULL )
return; return;
}
mbedtls_cipher_free( &ctx->cipher_ctx ); mbedtls_cipher_free( &ctx->cipher_ctx );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_gcm_context ) ); mbedtls_platform_zeroize( ctx, sizeof( mbedtls_gcm_context ) );
} }