diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
index 8b673466968d473223f270b33a4c9227c04cf93f..2023950d1c16c242ae3a3073e3010c58d108b02d 100644
--- a/Source/WebCore/ChangeLog
+++ b/Source/WebCore/ChangeLog
@@ -1,3 +1,22 @@
+2013-12-09  Andreas Kling  <akling@apple.com>
+
+        REGRESSION(r160260): Memory pressure signal causes web process to hang.
+        <https://webkit.org/b/125465>
+
+        Reviewed by Tim Horton.
+
+        This command caused all of my web processes to hang:
+
+            notifyutil -p org.WebKit.lowMemory
+
+        This only happens when the cache pruning code encounters a resource
+        using purgeable memory.
+
+        * loader/cache/MemoryCache.cpp:
+        (WebCore::MemoryCache::pruneLiveResourcesToSize):
+
+            Grab the next CachedResource pointer before continuing the loop.
+
 2013-12-09  peavo@outlook.com  <peavo@outlook.com>
 
         [WinCairo] OpenGL compile error.
diff --git a/Source/WebCore/loader/cache/MemoryCache.cpp b/Source/WebCore/loader/cache/MemoryCache.cpp
index 5fab5103a9e71c54e7701117eff5efb62e7853a5..506f6414eb84e3af47294f1924e2d18e5f4864dd 100644
--- a/Source/WebCore/loader/cache/MemoryCache.cpp
+++ b/Source/WebCore/loader/cache/MemoryCache.cpp
@@ -266,8 +266,10 @@ void MemoryCache::pruneLiveResourcesToSize(unsigned targetSize)
             if (elapsedTime < cMinDelayBeforeLiveDecodedPrune)
                 return;
 
-            if (current->decodedDataIsPurgeable())
+            if (current->decodedDataIsPurgeable()) {
+                current = prev;
                 continue;
+            }
 
             // Destroy our decoded data. This will remove us from 
             // m_liveDecodedResources, and possibly move us to a different LRU