https://github.com/ImageMagick/ImageMagick/issues/800

diff --git a/MagickCore/segment.c b/MagickCore/segment.c
index 83b0c563978c4b8ae49eeea966979183930b0056..2287d18b53e360caa1f966811e1939d075b8ee03 100644 (file)
--- a/MagickCore/segment.c
+++ b/MagickCore/segment.c
@@ -1411,7 +1411,7 @@ static IntervalTree *InitializeIntervalTree(const ZeroCrossing *zero_crossing,
         }
       if (left != head->left)
         {
-          node->sibling=(IntervalTree *) AcquireMagickMemory(
+          node->sibling=(IntervalTree *) AcquireCriticalMemory(
             sizeof(*node->sibling));
           node=node->sibling;
           node->tau=zero_crossing[i+1].tau;