repart: fix free area calculation

Like fdisk_get_last_lba(), fdisk_partition_get_end() return the last sector in the partition. Fixes #28225.
bluca · Jul 5, 2023 · d2eb1f8 · d2eb1f8
1 parent beba8f2
commit d2eb1f8
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/partition/repart.c b/src/partition/repart.c
@@ -1922,6 +1922,8 @@ static int determine_current_padding(
                 return log_error_errno(SYNTHETIC_ERRNO(EIO), "Partition has no end!");
 
         offset = fdisk_partition_get_end(p);
+        assert(offset < UINT64_MAX);
+        offset++; /* The end is one sector before the next partition or padding. */
         assert(offset < UINT64_MAX / secsz);
         offset *= secsz;