iR5900: fix heap-buffer-overflow in recompileNextInstruction

2026-01-31 01:15:24 +01:00 · 2024-08-10 17:47:39 -04:00
1 changed files with 1 additions and 1 deletions
--- a/pcsx2/x86/ix86-32/iR5900.cpp
+++ b/pcsx2/x86/ix86-32/iR5900.cpp
@@ -1707,7 +1707,7 @@ void recompileNextInstruction(bool delayslot, bool swapped_delay_slot)
 	g_pCurInstInfo++;

 	// pc might be past s_nEndBlock if the last instruction in the block is a DI.
-	if (pc <= s_nEndBlock)
+	if (pc <= s_nEndBlock && (g_pCurInstInfo + (s_nEndBlock - pc) / 4 + 1) <= s_pInstCache + s_nInstCacheSize)
 	{
 		int count;
 		for (u32 i = 0; i < iREGCNT_GPR; ++i)