diff --git a/compiler-rt/lib/hwasan/hwasan_linux.cpp b/compiler-rt/lib/hwasan/hwasan_linux.cpp
--- a/compiler-rt/lib/hwasan/hwasan_linux.cpp
+++ b/compiler-rt/lib/hwasan/hwasan_linux.cpp
@@ -120,16 +120,22 @@
 #  define PR_SET_TAGGED_ADDR_CTRL 55
 #  define PR_GET_TAGGED_ADDR_CTRL 56
 #  define PR_TAGGED_ADDR_ENABLE (1UL << 0)
-#  define ARCH_GET_UNTAG_MASK 0x4001
 #  define ARCH_ENABLE_TAGGED_ADDR 0x4002
+#  define ARCH_GET_MAX_TAG_BITS 0x4003
 
 static bool CanUseTaggingAbi() {
 #  if defined(__x86_64__)
+  int num_bits = 0;
   // Check for x86 LAM support. This API is based on a currently unsubmitted
-  // patch to the Linux kernel (as of July 2022) and is thus subject to
-  // change. Patch is here:
-  // https://lore.kernel.org/linux-mm/20220712231328.5294-1-kirill.shutemov@linux.intel.com/
-  return !internal_iserror(internal_arch_prctl(ARCH_GET_UNTAG_MASK, 0));
+  // patch to the Linux kernel (as of August 2022) and is thus subject to
+  // change. The patch is here:
+  // https://lore.kernel.org/all/20220815041803.17954-1-kirill.shutemov@linux.intel.com/
+  if (internal_iserror(internal_arch_prctl(ARCH_GET_MAX_TAG_BITS,
+                                           reinterpret_cast<uptr>(&num_bits))))
+    return false;
+  if (num_bits != kTagBits)
+    return false;
+  return true;
 #  else
   // Check for ARM TBI support.
   return !internal_iserror(internal_prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0));