diff --git a/linker/linker.cpp b/linker/linker.cpp
index ab0fc07..b2911b8 100644
--- a/linker/linker.cpp
+++ b/linker/linker.cpp
@@ -814,12 +814,20 @@
     DL_ERR("file offset for the library \"%s\" is not page-aligned: %" PRId64, name, file_offset);
     return nullptr;
   }
+  if (file_offset < 0) {
+    DL_ERR("file offset for the library \"%s\" is negative: %" PRId64, name, file_offset);
+    return nullptr;
+  }
 
   struct stat file_stat;
   if (TEMP_FAILURE_RETRY(fstat(fd, &file_stat)) != 0) {
     DL_ERR("unable to stat file for the library \"%s\": %s", name, strerror(errno));
     return nullptr;
   }
+  if (file_offset >= file_stat.st_size) {
+    DL_ERR("file offset for the library \"%s\" >= file size: %" PRId64 " >= %" PRId64, name, file_offset, file_stat.st_size);
+    return nullptr;
+  }
 
   // Check for symlink and other situations where
   // file can have different names.