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[PATCH v7 03/10] parallels: Fix data_end after out-of-image check
From: |
Alexander Ivanov |
Subject: |
[PATCH v7 03/10] parallels: Fix data_end after out-of-image check |
Date: |
Mon, 29 Aug 2022 12:12:38 +0200 |
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 <alexander.ivanov@virtuozzo.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
---
block/parallels.c | 2 ++
1 file changed, 2 insertions(+)
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;
--
2.34.1
- [PATCH v7 00/10] parallels: Refactor the code of images checks and fix a bug, Alexander Ivanov, 2022/08/29
- [PATCH v7 01/10] parallels: Out of image offset in BAT leads to image inflation, Alexander Ivanov, 2022/08/29
- [PATCH v7 02/10] parallels: Fix high_off calculation in parallels_co_check(), Alexander Ivanov, 2022/08/29
- [PATCH v7 03/10] parallels: Fix data_end after out-of-image check,
Alexander Ivanov <=
- [PATCH v7 05/10] parallels: Use generic infrastructure for BAT writing in parallels_co_check(), Alexander Ivanov, 2022/08/29
- [PATCH v7 07/10] parallels: Move check of cluster outside image to a separate function, Alexander Ivanov, 2022/08/29
- [PATCH v7 04/10] parallels: create parallels_set_bat_entry_helper() to assign BAT value, Alexander Ivanov, 2022/08/29
- [PATCH v7 10/10] parallels: Replace qemu_co_mutex_lock by WITH_QEMU_LOCK_GUARD, Alexander Ivanov, 2022/08/29
- [PATCH v7 06/10] parallels: Move check of unclean image to a separate function, Alexander Ivanov, 2022/08/29
- [PATCH v7 09/10] parallels: Move statistic collection to a separate function, Alexander Ivanov, 2022/08/29
- [PATCH v7 08/10] parallels: Move check of leaks to a separate function, Alexander Ivanov, 2022/08/29
- [PATCH v7 11/10] parallels: Incorrect condition in out-of-image check, Alexander Ivanov, 2022/08/29