diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_posix_libcdep.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_posix_libcdep.cpp
--- a/compiler-rt/lib/sanitizer_common/sanitizer_posix_libcdep.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_posix_libcdep.cpp
@@ -273,8 +273,9 @@
   // Checking too large memory ranges is slow.
   CHECK_LT(size, page_size * 10);
   int sock_pair[2];
+  errno = 0;
   if (pipe(sock_pair))
-    return false;
+    return errno == EMFILE || errno == ENFILE;
   uptr bytes_written =
       internal_write(sock_pair[1], reinterpret_cast<void *>(beg), size);
   int write_errno;