[Bug dynamic-link/14341] Dynamic linker crash when DT_JMPREL and DT_REL{,A} are not contiguous

["mh-sourceware at glandium dot org" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=14341

--- Comment #3 from Mike Hommey <mh-sourceware at glandium dot org> 2012-07-09 16:13:46 UTC ---
(In reply to comment #2)
> Can you please use the recently released 2.16?
> 
> Can you please update Version in this issue to reflect the true version you
> areusing.
> 
> We already knew about this failure and fixed it on April 10th as part of:
> http://sourceware.org/bugzilla/show_bug.cgi?id=13967
> 
> I may have missed something, but I expected this to be fixed.

I'm using the version that's including that fix, but it still crashes.

The following fixes it (which, in practice, mostly reverts
96154cd892c614f13f32996ce75df1442641fb5b) :
--- glibc-2.16.0/elf/dynamic-link.h    2012-06-30 21:12:34.000000000 +0200
+++ glibc-2.16.0.fixed/elf/dynamic-link.h    2012-07-09 10:35:50.579168312
+0200
@@ -280,7 +280,8 @@
                                           \
     if (ranges[0].start + ranges[0].size == (start + size))              \
       ranges[0].size -= size;                          \
-    if (! ELF_DURING_STARTUP && ((do_lazy) || ranges[0].size == 0))          \
+    if ((! ELF_DURING_STARTUP && ((do_lazy) || ranges[0].size == 0)) ||   \
+            (ranges[0].start + ranges[0].size != start))                  \
       {                                      \
         ranges[1].start = start;                          \
         ranges[1].size = size;                          \

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