diff --git base/allocator/partition_allocator/partition_alloc_config.h base/allocator/partition_allocator/partition_alloc_config.h
index c5ccd81..6d15bfd 100644
--- base/allocator/partition_allocator/partition_alloc_config.h
+++ base/allocator/partition_allocator/partition_alloc_config.h
@@ -33,9 +33,12 @@
 
 #if defined(PA_HAS_64_BITS_POINTERS) && \
     (defined(OS_LINUX) || defined(OS_ANDROID))
+#include <linux/version.h>
 // TODO(bikineev): Enable for ChromeOS.
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 8, 0)
 #define PA_STARSCAN_UFFD_WRITE_PROTECTOR_SUPPORTED
 #endif
+#endif
 
 // POSIX is not only UNIX, e.g. macOS and other OSes. We do use Linux-specific
 // features such as futex(2).