Fix UB if uncompressedIn is zero-sized

EmilDohne · Oct 16, 2024 · 5210de9 · 5210de9
1 parent 326ee82
commit 5210de9
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/CMakePresets.json b/CMakePresets.json
@@ -15,10 +15,6 @@
           "type": "equals",
           "lhs": "${hostSystemName}",
           "rhs": "Windows"
-        },
-        "environment": {
-          "CFLAGS": "/fsanitize=address /Zi",
-          "CXXFLAGS": "/fsanitize=address /Zi"
         }
       },
       {

diff --git a/PhotoshopAPI/src/Core/Compression/Compression.h b/PhotoshopAPI/src/Core/Compression/Compression.h
@@ -64,6 +64,10 @@ inline std::vector<uint8_t> CompressData(std::span<T> uncompressedIn, std::span<
 {
 	if (compression == Enum::Compression::Raw)
 	{
+		if (uncompressedIn.size() == 0)
+		{
+			return {};
+		}
 		endianEncodeBEArray(uncompressedIn);
 		std::vector<uint8_t> data(uncompressedIn.size() * sizeof(T));
 		std::memcpy(reinterpret_cast<void*>(data.data()), reinterpret_cast<void*>(uncompressedIn.data()), data.size());