From 18fd9576da385f54c54d2e286829a46d92828fd8 Mon Sep 17 00:00:00 2001
From: Zhengyu Gu <zhengyu.gu@datadoghq.com>
Date: Fri, 5 Jun 2026 18:35:05 +0000
Subject: [PATCH] Shifting long long value more than 63 bits is UB

---
 ddprof-lib/src/main/cpp/arguments.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ddprof-lib/src/main/cpp/arguments.cpp b/ddprof-lib/src/main/cpp/arguments.cpp
index 52b55d78b..925569e1c 100644
--- a/ddprof-lib/src/main/cpp/arguments.cpp
+++ b/ddprof-lib/src/main/cpp/arguments.cpp
@@ -440,7 +440,7 @@ const char *Arguments::file() {
 // Should match statically computed HASH(arg)
 long long Arguments::hash(const char *arg) {
   long long h = 0;
-  for (int shift = 0; *arg != 0; shift += 5) {
+  for (int shift = 0; *arg != 0 && shift < 60; shift += 5) {
     h |= (*arg++ & 31LL) << shift;
   }
   return h;