X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/b0d623f7f2ae71ed96e60569f61f9a9a27016e80..99c3a10404e5d1ef94397ab4df5a8b74711fc4d3:/pexpert/gen/device_tree.c

diff --git a/pexpert/gen/device_tree.c b/pexpert/gen/device_tree.c
index dc3ea9ddc..d78bed0bf 100644
--- a/pexpert/gen/device_tree.c
+++ b/pexpert/gen/device_tree.c
@@ -127,11 +127,18 @@ GetNextChild(RealDTEntry sibling)
 static const char *
 GetNextComponent(const char *cp, char *bp)
 {
+	size_t length = 0;
+	char *origbp = bp;
+
 	while (*cp != 0) {
 		if (*cp == kDTPathNameSeparator) {
 			cp++;
 			break;
 		}
+		if (++length > kDTMaxEntryNameLength) {
+			*origbp = '\0';
+			return cp;
+		}
 		*bp++ = *cp++;
 	}
 	*bp = 0;