Message ID | 20180312150218.1314-6-kwolf@redhat.com |
---|---|
State | New |
Headers | show |
Series | luks: Implement .bdrv_co_create | expand |
diff --git a/block/crypto.c b/block/crypto.c index 16c371ec9c..9dac08c6c5 100644 --- a/block/crypto.c +++ b/block/crypto.c @@ -102,6 +102,11 @@ static ssize_t block_crypto_init_func(QCryptoBlock *block, { struct BlockCryptoCreateData *data = opaque; + if (data->size > INT64_MAX || headerlen > INT64_MAX - data->size) { + error_setg(errp, "The requested file size is too large"); + return -EFBIG; + } + /* User provided size should reflect amount of space made * available to the guest, so we must take account of that * which will be used by the crypto header