[v7,03/10] parallels: Fix data_end after out-of-image check

Commit Message

Alexander Ivanov Aug. 29, 2022, 10:12 a.m. UTC

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.

Signed-off-by: Alexander Ivanov <[e-mail]>
Reviewed-by: Denis V. Lunev <[e-mail]>
---
 block/parallels.c | 2 ++
 1 file changed, 2 insertions(+)

Patch

diff --git a/block/parallels.c b/block/parallels.c
index 7e8cdbbc3a..c1ff8bb5f0 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -514,6 +514,8 @@  static int coroutine_fn parallels_co_check(BlockDriverState *bs,
         }
     }
 
+    s->data_end = res->image_end_offset >> BDRV_SECTOR_BITS;
+
 out:
     qemu_co_mutex_unlock(&s->lock);
     return ret;