diff options
| -rw-r--r-- | block/vhdx-log.c | 6 | ||||
| -rw-r--r-- | block/vhdx.c | 3 |
2 files changed, 8 insertions, 1 deletions
diff --git a/block/vhdx-log.c b/block/vhdx-log.c index 2e26fd46a5..95972230f0 100644 --- a/block/vhdx-log.c +++ b/block/vhdx-log.c @@ -553,7 +553,11 @@ static int vhdx_log_flush(BlockDriverState *bs, BDRVVHDXState *s, new_file_size = desc_entries->hdr.last_file_offset; if (new_file_size % (1024*1024)) { /* round up to nearest 1MB boundary */ - new_file_size = ((new_file_size >> 20) + 1) << 20; + new_file_size = QEMU_ALIGN_UP(new_file_size, MiB); + if (new_file_size > INT64_MAX) { + ret = -EINVAL; + goto exit; + } bdrv_truncate(bs->file, new_file_size, PREALLOC_MODE_OFF, NULL); } } diff --git a/block/vhdx.c b/block/vhdx.c index 37224b8858..7ae4589879 100644 --- a/block/vhdx.c +++ b/block/vhdx.c @@ -1177,6 +1177,9 @@ static int vhdx_allocate_block(BlockDriverState *bs, BDRVVHDXState *s, /* per the spec, the address for a block is in units of 1MB */ *new_offset = ROUND_UP(*new_offset, 1024 * 1024); + if (*new_offset > INT64_MAX) { + return -EINVAL; + } return bdrv_truncate(bs->file, *new_offset + s->block_size, PREALLOC_MODE_OFF, NULL); |