diff -up chromium-92.0.4515.159/base/allocator/partition_allocator/partition_alloc_config.h.epel8-uffd-off chromium-92.0.4515.159/base/allocator/partition_allocator/partition_alloc_config.h
--- chromium-92.0.4515.159/base/allocator/partition_allocator/partition_alloc_config.h.epel8-uffd-off	2021-08-30 09:25:56.878243728 -0400
+++ chromium-92.0.4515.159/base/allocator/partition_allocator/partition_alloc_config.h	2021-08-30 09:26:12.489322762 -0400
@@ -37,7 +37,7 @@ static_assert(sizeof(void*) != 8, "");
 #if defined(PA_HAS_64_BITS_POINTERS) && \
     (defined(OS_LINUX) || defined(OS_ANDROID))
 // TODO(bikineev): Enable for ChromeOS.
-#define PA_STARSCAN_UFFD_WRITE_PROTECTOR_SUPPORTED
+#define PA_STARSCAN_UFFD_WRITE_PROTECTOR_SUPPORTED 0
 #endif
 
 // POSIX is not only UNIX, e.g. macOS and other OSes. We do use Linux-specific