added patch changeset_6807f4ee8f5501703e447f95701190c836deaae1.diff

to "cherry-pick" 6807f4e (BF: Initialize firstbg to the numels so if no bg value found, second loop is not executed)

debian/changelog

@@ -1,3 +1,11 @@
+skimage (0.12.3-2) unstable; urgency=medium
+
+  * debian/patches
+    - changeset_6807f4ee8f5501703e447f95701190c836deaae1.diff to initialize
+      value of firstbg to avoid segfaults (Closes: #840589)
+
+ -- Yaroslav Halchenko <[email protected]>  Mon, 12 Dec 2016 12:41:31 -0500
+
 skimage (0.12.3-1) unstable; urgency=medium
 
   [ Stefan van der Walt ]

debian/patches/changeset_6807f4ee8f5501703e447f95701190c836deaae1.diff

@@ -0,0 +1,14 @@
+From: Yaroslav Halchenko <[email protected]>
+Subject: BF: Initialize firstbg to the numels so if no bg value found, second loop is not executed
+
+--- a/skimage/measure/_ccomp.pyx
++++ b/skimage/measure/_ccomp.pyx
+@@ -541,7 +541,7 @@ cdef void scanBG(DTYPE_t *data_p, DTYPE_
+
+     The result of this function is update of forest_p and bg parameter.
+     """
+-    cdef DTYPE_t i, bgval = bg.background_val, firstbg
++    cdef DTYPE_t i, bgval = bg.background_val, firstbg = shapeinfo.numels
+     # We find the provisional label of the background, which is the index of
+     # the first background pixel
+     for i in range(shapeinfo.numels):

debian/patches/series

@@ -1,3 +1,4 @@
+changeset_6807f4ee8f5501703e447f95701190c836deaae1.diff
 dask-optional-dep.patch
 search-html.patch
 fix-doc-links.patch