--- a/layout/tools/reftest/runreftest.py
+++ b/layout/tools/reftest/runreftest.py
@@ -364,17 +364,27 @@ class RefTest(object):
             ix = v.find("=")
             if ix <= 0:
                 print "Error: syntax error in --setenv=" + v
                 return None
             browserEnv[v[:ix]] = v[ix + 1:]
 
         # Enable leaks detection to its own log file.
         self.leakLogFile = os.path.join(profileDir, "runreftest_leaks.log")
-        browserEnv["XPCOM_MEM_BLOAT_LOG"] = self.leakLogFile
+
+        # Leak checking was broken in reftest unnoticed for a length of time. During
+        # this time, a leak slipped into the crashtest suite. The leak checking was
+        # fixed by bug 1325148, but it couldn't land until the regression in crashtest
+        # was also fixed or backed out. Rather than waiting and risking new regressions,
+        # temporarily disable leak checking in crashtest. Fix is tracked by bug 1325215.
+        if options.suite == 'crashtest' and mozinfo.info['os'] == 'linux':
+            self.log.warning('WARNING | leakcheck disabled due to bug 1325215')
+        else:
+            browserEnv["XPCOM_MEM_BLOAT_LOG"] = self.leakLogFile
+
         return browserEnv
 
     def killNamedOrphans(self, pname):
         """ Kill orphan processes matching the given command name """
         self.log.info("Checking for orphan %s processes..." % pname)
 
         def _psInfo(line):
             if pname in line: