From: Lubos Uhliarik <luhliari@redhat.com>
Date: Mon, 13 Jun 2016 12:50:25 +0000 (+1200)
Subject: Bug 4291: workaround DeferredReadManager::popHead segfault during shutdown
X-Git-Tag: SQUID_4_0_12~25
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3dd0769994071c9c29e2cb5532a62436d6465be7;p=thirdparty%2Fsquid.git

Bug 4291: workaround DeferredReadManager::popHead segfault during shutdown
---

diff --git a/src/comm.cc b/src/comm.cc
index 8feeede537..b6ecf05d5b 100644
--- a/src/comm.cc
+++ b/src/comm.cc
@@ -1774,7 +1774,7 @@ DeferredReadManager::popHead(CbDataListContainer<DeferredRead> &deferredReads)
     //       amount of time. We must re-validate that it is active and usable.
 
     // If the connection has been closed already. Cancel this read.
-    if (!Comm::IsConnOpen(read.theRead.conn)) {
+    if (!fd_table || !Comm::IsConnOpen(read.theRead.conn)) {
         if (read.closer != NULL) {
             read.closer->cancel("Connection closed before.");
             read.closer = NULL;