diff --git a/fs/partitions/check.h b/fs/partitions/check.h
index 4b31a97..52f8bd3 100644
--- a/fs/partitions/check.h
+++ b/fs/partitions/check.h
@@ -15,11 +15,16 @@
 	} parts[DISK_MAX_PARTS];
 	int next;
 	int limit;
+	bool access_beyond_eod;
 };
 
 static inline void *read_part_sector(struct parsed_partitions *state,
 				     sector_t n, Sector *p)
 {
+	if (n >= get_capacity(state->bdev->bd_disk)) {
+		state->access_beyond_eod = true;
+		return NULL;
+	}
 	return read_dev_sector(state->bdev, n, p);
 }