The function grub_disk_native_sectors(source) returns the number of sectors
of source in grub native (512-byte) sectors, not source sized sectors. So
the conversion needs to use GRUB_DISK_SECTOR_BITS. the grub native sector
size.
Signed-off-by: Glenn Washburn <developm...@efficientek.com>
---
grub-core/disk/luks2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/grub-core/disk/luks2.c b/grub-core/disk/luks2.c
index 8d2457557..8c1156dd0 100644
--- a/grub-core/disk/luks2.c
+++ b/grub-core/disk/luks2.c
@@ -631,7 +631,7 @@ luks2_recover_key (grub_disk_t source,
crypt->log_sector_size = sizeof (unsigned int) * 8
- __builtin_clz ((unsigned int) segment.sector_size) - 1;
if (grub_strcmp (segment.size, "dynamic") == 0)
- crypt->total_sectors = (grub_disk_native_sectors (source) >>
(crypt->log_sector_size - source->log_sector_size))
+ crypt->total_sectors = (grub_disk_native_sectors (source) >>
(crypt->log_sector_size - GRUB_DISK_SECTOR_BITS))
- crypt->offset_sectors;
else
crypt->total_sectors = grub_strtoull (segment.size, NULL, 10) >>
crypt->log_sector_size;
--
2.27.0
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