commit 4b10d1fdd31f46a9cdf3e7a196f9934d766a922f
author Zack Johnson <zacklj89@gmail.com> Tue Mar 19 09:16:18 2024 -0400
committer GitHub <noreply@github.com> Tue Mar 19 15:16:18 2024 +0200
tree 8f5be81eb3127fef21b43d21f50daac18d7b320a
parent 175ad6630a869831126dde80f0f9257f9c4c477f

[compiler-rt] Fixing UB on Windows for trampoline allocations (#85639)

Fixing the type of the constant to avoid undefined behavior with respect
to overflow.

compiler-rt/lib/interception/interception_win.cpp

diff --git a/compiler-rt/lib/interception/interception_win.cpp b/compiler-rt/lib/interception/interception_win.cpp
index 1829358..a04175b 100644
--- a/compiler-rt/lib/interception/interception_win.cpp
+++ b/compiler-rt/lib/interception/interception_win.cpp
@@ -339,7 +339,7 @@
   uptr max_size;
 };
 
-UNUSED static const uptr kTrampolineScanLimitRange = 1 << 31;  // 2 gig
+UNUSED static const uptr kTrampolineScanLimitRange = 1ull << 31;  // 2 gig
 static const int kMaxTrampolineRegion = 1024;
 static TrampolineMemoryRegion TrampolineRegions[kMaxTrampolineRegion];