{
/* this can cause I/O errors later but we don't fail mounting to let
user rescue data */
- exfat_warn("file system is larger than underlying device: "
- "%"PRIu64" > %"PRIu64,
- le64_to_cpu(ef->sb->sector_count) * SECTOR_SIZE(*ef->sb),
+ exfat_warn("file system in sectors is larger than device: "
+ "%"PRIu64" * %d > %"PRIu64,
+ le64_to_cpu(ef->sb->sector_count), SECTOR_SIZE(*ef->sb),
exfat_get_size(ef->dev));
}
+ if ((off_t) le32_to_cpu(ef->sb->cluster_count) * CLUSTER_SIZE(*ef->sb) >
+ exfat_get_size(ef->dev))
+ {
+ exfat_error("file system in clusters is larger than device: "
+ "%u * %d > %"PRIu64,
+ le32_to_cpu(ef->sb->cluster_count), CLUSTER_SIZE(*ef->sb),
+ exfat_get_size(ef->dev));
+ exfat_free(ef);
+ return -EIO;
+ }
ef->root = malloc(sizeof(struct exfat_node));
if (ef->root == NULL)