1 files changed, 4 insertions, 1 deletions
diff --git a/ll-merge.c b/ll-merge.c
index fc3c049..bf83290 100644
--- a/ll-merge.c
+++ b/ll-merge.c
@@ -89,7 +89,10 @@ static int ll_xdl_merge(const struct ll_merge_driver *drv_unused,
 	xmparam_t xmp;
 	assert(opts);
 
-	if (buffer_is_binary(orig->ptr, orig->size) ||
+	if (orig->size > MAX_XDIFF_SIZE ||
+	    src1->size > MAX_XDIFF_SIZE ||
+	    src2->size > MAX_XDIFF_SIZE ||
+	    buffer_is_binary(orig->ptr, orig->size) ||
 	    buffer_is_binary(src1->ptr, src1->size) ||
 	    buffer_is_binary(src2->ptr, src2->size)) {
 		return ll_binary_merge(drv_unused, result,