From 729443409942a1816ddf74b95224003b83f4925c Mon Sep 17 00:00:00 2001
From: Rasmus Munk Larsen <rmlarsen@google.com>
Date: Fri, 25 Apr 2025 21:13:52 +0000
Subject: [PATCH] Avoid UB in ploaduSegment

---
 Eigen/src/Core/GenericPacketMath.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Eigen/src/Core/GenericPacketMath.h b/Eigen/src/Core/GenericPacketMath.h
index b39ee60cc..d45cb4bf4 100644
--- a/Eigen/src/Core/GenericPacketMath.h
+++ b/Eigen/src/Core/GenericPacketMath.h
@@ -1566,6 +1566,7 @@ EIGEN_DEVICE_FUNC inline Packet ploaduSegment(const typename unpacket_traits<Pac
   constexpr Index PacketSize = unpacket_traits<Packet>::size;
   eigen_assert((begin >= 0 && count >= 0 && begin + count <= PacketSize) && "invalid range");
   Scalar aux[PacketSize];
+  memset(static_cast<void*>(aux), 0x00, sizeof(Scalar) * PacketSize);
   smart_copy(from + begin, from + begin + count, aux + begin);
   return ploadu<Packet>(aux);
 }