From: Glenn Washburn <developm...@efficientek.com> Here dev is a grub_cryptodisk_t and dev->offset is offset in sectors of size native to the cryptodisk device. The sector is correctly transformed into native grub sector size, but then added to dev->offset which is not transformed. It would be nice if the type system would help us with this.
Signed-off-by: Glenn Washburn <developm...@efficientek.com>
---
grub-core/disk/cryptodisk.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/grub-core/disk/cryptodisk.c b/grub-core/disk/cryptodisk.c
index b2c6e9a7d..76ec2d4b9 100644
--- a/grub-core/disk/cryptodisk.c
+++ b/grub-core/disk/cryptodisk.c
@@ -757,8 +757,8 @@ grub_cryptodisk_read (grub_disk_t disk, grub_disk_addr_t
sector,
size, sector, dev->offset);
err = grub_disk_read (dev->source_disk,
- (sector << (disk->log_sector_size
- - GRUB_DISK_SECTOR_BITS)) + dev->offset, 0,
+ ((sector + dev->offset) << (disk->log_sector_size
+ - GRUB_DISK_SECTOR_BITS)), 0,
size << disk->log_sector_size, buf);
if (err)
{
--
2.28.0
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