From 6e0ae5dd3c17727a718ddd70ef3e0fe33cfea3b3 Mon Sep 17 00:00:00 2001
From: Capri <caprimc@yahoo.com>
Date: Mon, 14 Sep 2026 21:09:32 +0000
Subject: [PATCH] Propagate RandomX hashing failures safely

---
 src/primitives/block.cpp | 20 +++++++-------------
 src/primitives/block.h   |  2 +-
 src/test/pow_tests.cpp   |  3 ++-
 3 files changed, 10 insertions(+), 15 deletions(-)

diff --git a/src/primitives/block.cpp b/src/primitives/block.cpp
index 7a19fa3..29b4a5c 100644
--- a/src/primitives/block.cpp
+++ b/src/primitives/block.cpp
@@ -39,23 +39,17 @@ uint256 CBlockHeader::GetPoWAlgoHash(const Consensus::Params& params) const
     return GetHash();
 }
 
-uint256 CBlockHeader::GetRandomXPoWHash(const uint256& seed) const
+bool CBlockHeader::GetRandomXPoWHash(const uint256& seed, uint256& result) const
 {
     CDataStream stream(SER_GETHASH, PROTOCOL_VERSION);
     stream << *this;
 
-    uint256 result;
-
-    if (!VextaRandomXHash(
-            stream.data(),
-            stream.size(),
-            seed.data(),
-            seed.size(),
-            result.begin())) {
-        result.SetNull();
-    }
-
-    return result;
+    return VextaRandomXHash(
+        stream.data(),
+        stream.size(),
+        seed.data(),
+        seed.size(),
+        result.begin());
 }
 
 std::string CBlock::ToString(const Consensus::Params& params) const
diff --git a/src/primitives/block.h b/src/primitives/block.h
index 6bdb9e5..a001d27 100644
--- a/src/primitives/block.h
+++ b/src/primitives/block.h
@@ -102,7 +102,7 @@ public:
      * The input is the canonical serialized 80-byte block header.
      * The seed is supplied in raw uint256 serialization byte order.
      */
-    uint256 GetRandomXPoWHash(const uint256& seed) const;
+    bool GetRandomXPoWHash(const uint256& seed, uint256& result) const;
 
     int64_t GetBlockTime() const
     {
diff --git a/src/test/pow_tests.cpp b/src/test/pow_tests.cpp
index 7a0f6e6..9758f6e 100644
--- a/src/test/pow_tests.cpp
+++ b/src/test/pow_tests.cpp
@@ -589,7 +589,8 @@ BOOST_AUTO_TEST_CASE(RandomX_header_hash_vector_test)
         HexStr(seedBytes),
         "0ffeeddccbbaa9988776655443322110ffeeddccbbaa99887766554433221100");
 
-    const uint256 randomXHash = header.GetRandomXPoWHash(seed);
+    uint256 randomXHash;
+    BOOST_REQUIRE(header.GetRandomXPoWHash(seed, randomXHash));
 
     BOOST_CHECK_EQUAL(
         randomXHash.ToString(),