diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/block/virtio-blk.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c index e6e62768e4..c241c5002b 100644 --- a/hw/block/virtio-blk.c +++ b/hw/block/virtio-blk.c @@ -291,12 +291,19 @@ static void virtio_blk_handle_flush(VirtIOBlockReq *req, MultiReqBuffer *mrb) static bool virtio_blk_sect_range_ok(VirtIOBlock *dev, uint64_t sector, size_t size) { + uint64_t nb_sectors = size >> BDRV_SECTOR_BITS; + uint64_t total_sectors; + if (sector & dev->sector_mask) { return false; } if (size % dev->conf->logical_block_size) { return false; } + bdrv_get_geometry(dev->bs, &total_sectors); + if (sector > total_sectors || nb_sectors > total_sectors - sector) { + return false; + } return true; } |