diff options
| -rw-r--r-- | block/crypto.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/block/crypto.c b/block/crypto.c index 00fb40c..e0b8856 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 |