From: Alexander Ivanov <[email protected]> Set data_end to the end of the last cluster inside the image. In such a way we can be sure that corrupted offsets in the BAT can't affect on the image size. If there are no allocated clusters set image_end_offset by data_end.
Signed-off-by: Alexander Ivanov <[email protected]> Reviewed-by: Denis V. Lunev <[email protected]> Message-Id: <[email protected]> Reviewed-by: Hanna Czenczek <[email protected]> Signed-off-by: Hanna Czenczek <[email protected]> --- block/parallels.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/block/parallels.c b/block/parallels.c index 204d20685b..ea382e8382 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -490,7 +490,13 @@ parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res, } } - res->image_end_offset = high_off + s->cluster_size; + if (high_off == 0) { + res->image_end_offset = s->data_end << BDRV_SECTOR_BITS; + } else { + res->image_end_offset = high_off + s->cluster_size; + s->data_end = res->image_end_offset >> BDRV_SECTOR_BITS; + } + if (size > res->image_end_offset) { int64_t count; count = DIV_ROUND_UP(size - res->image_end_offset, s->cluster_size); -- 2.40.1
