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Fix memleak with repeated [gc]cm_setkey()

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Manuel Pégourié-Gonnard 2015-05-27 17:38:50 +02:00
parent bc07c3a1f0
commit 61977614d8
3 changed files with 6 additions and 0 deletions
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2
ChangeLog
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@ -35,6 +35,8 @@ Features
errors on use of deprecated functions. errors on use of deprecated functions.
Bugfix Bugfix
* Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
once on the same context.
* Fix bug in ssl_mail_client when password is longer that username (found * Fix bug in ssl_mail_client when password is longer that username (found
by Bruno Pape). by Bruno Pape).
* Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules

2
library/ccm.c
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@ -78,6 +78,8 @@ int ccm_init( ccm_context *ctx, cipher_id_t cipher,
if( cipher_info->block_size != 16 ) if( cipher_info->block_size != 16 )
return( POLARSSL_ERR_CCM_BAD_INPUT ); return( POLARSSL_ERR_CCM_BAD_INPUT );
cipher_free( &ctx->cipher_ctx );
if( ( ret = cipher_init_ctx( &ctx->cipher_ctx, cipher_info ) ) != 0 ) if( ( ret = cipher_init_ctx( &ctx->cipher_ctx, cipher_info ) ) != 0 )
return( ret ); return( ret );

2
library/gcm.c
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@ -168,6 +168,8 @@ int gcm_init( gcm_context *ctx, cipher_id_t cipher, const unsigned char *key,
if( cipher_info->block_size != 16 ) if( cipher_info->block_size != 16 )
return( POLARSSL_ERR_GCM_BAD_INPUT ); return( POLARSSL_ERR_GCM_BAD_INPUT );
cipher_free( &ctx->cipher_ctx );
if( ( ret = cipher_init_ctx( &ctx->cipher_ctx, cipher_info ) ) != 0 ) if( ( ret = cipher_init_ctx( &ctx->cipher_ctx, cipher_info ) ) != 0 )
return( ret ); return( ret );