diff --git a/intern/cycles/util/defines.h b/intern/cycles/util/defines.h
index bc4e67288d3..d2464242ce5 100644
--- a/intern/cycles/util/defines.h
+++ b/intern/cycles/util/defines.h
@@ -82,6 +82,18 @@
 #  endif
 #endif /* __KERNEL_GPU__ */
 
+/* Address sanitizer suppression. */
+
+#ifdef __KERNEL_GPU__
+#  define ccl_ignore_integer_overflow
+#else
+#  if defined(__SANITIZE_ADDRESS__) && (defined(__GNUC__) || defined(__clang__))
+#    define ccl_ignore_integer_overflow [[gnu::no_sanitize("signed-integer-overflow")]]
+#  else
+#    define ccl_ignore_integer_overflow
+#  endif
+#endif
+
 /* macros */
 
 /* hints for branch prediction, only use in code that runs a _lot_ */
diff --git a/intern/cycles/util/hash.h b/intern/cycles/util/hash.h
index c591710c08b..92ac15ce80e 100644
--- a/intern/cycles/util/hash.h
+++ b/intern/cycles/util/hash.h
@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include "util/defines.h"
 #include "util/math.h"
 #include "util/types.h"
 
@@ -31,9 +32,11 @@ ccl_device_forceinline float uint_to_float_incl(const uint n)
  * https://jcgt.org/published/0009/03/02/
  *
  * Slightly modified to only use signed integers,
- * so that they can also be implemented in OSL. */
+ * so that they can also be implemented in OSL.
+ *
+ * Silence UBsan warnings about signed integer overflow. */
 
-ccl_device_inline int2 hash_pcg2d_i(int2 v)
+ccl_ignore_integer_overflow ccl_device_inline int2 hash_pcg2d_i(int2 v)
 {
   v = v * make_int2(1664525) + make_int2(1013904223);
   v.x += v.y * 1664525;
@@ -44,7 +47,7 @@ ccl_device_inline int2 hash_pcg2d_i(int2 v)
   return v & make_int2(0x7FFFFFFF);
 }
 
-ccl_device_inline int3 hash_pcg3d_i(int3 v)
+ccl_ignore_integer_overflow ccl_device_inline int3 hash_pcg3d_i(int3 v)
 {
   v = v * make_int3(1664525) + make_int3(1013904223);
   v.x += v.y * v.z;
@@ -57,7 +60,7 @@ ccl_device_inline int3 hash_pcg3d_i(int3 v)
   return v & make_int3(0x7FFFFFFF);
 }
 
-ccl_device_inline int4 hash_pcg4d_i(int4 v)
+ccl_ignore_integer_overflow ccl_device_inline int4 hash_pcg4d_i(int4 v)
 {
   v = v * make_int4(1664525) + make_int4(1013904223);
   v.x += v.y * v.w;