1 files changed, 11 insertions, 0 deletions
diff --git a/lib/msan/tests/msan_test.cc b/lib/msan/tests/msan_test.cc
index b2d5f7c60..b4cc8493a 100644
--- a/lib/msan/tests/msan_test.cc
+++ b/lib/msan/tests/msan_test.cc
@@ -3449,6 +3449,17 @@ TEST(MemorySanitizer, pvalloc) {
   EXPECT_EQ(0U, (uintptr_t)p % PageSize);
   EXPECT_EQ(PageSize, __sanitizer_get_allocated_size(p));
   free(p);
+
+  // Overflows in pvalloc should be caught.
+  errno = 0;
+  p = pvalloc((uintptr_t)-PageSize);
+  EXPECT_EQ(p, nullptr);
+  EXPECT_EQ(errno, ENOMEM);
+
+  errno = 0;
+  p = pvalloc((uintptr_t)-1);
+  EXPECT_EQ(p, nullptr);
+  EXPECT_EQ(errno, ENOMEM);
 }
 #endif