1 files changed, 47 insertions, 0 deletions
diff --git a/libre/xtensa-unknown-elf-glibc/glibc-2.17-getaddrinfo-stack-overflow.patch b/libre/xtensa-unknown-elf-glibc/glibc-2.17-getaddrinfo-stack-overflow.patch
new file mode 100644
index 000000000..aa916ac2c
--- /dev/null
+++ b/libre/xtensa-unknown-elf-glibc/glibc-2.17-getaddrinfo-stack-overflow.patch
@@ -0,0 +1,47 @@
+diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
+index d95c2d1..2309281 100644
+--- a/sysdeps/posix/getaddrinfo.c
++++ b/sysdeps/posix/getaddrinfo.c
+@@ -2489,11 +2489,27 @@ getaddrinfo (const char *name, const char *service,
+       __typeof (once) old_once = once;
+       __libc_once (once, gaiconf_init);
+       /* Sort results according to RFC 3484.  */
+-      struct sort_result results[nresults];
+-      size_t order[nresults];
++      struct sort_result *results;
++      size_t *order;
+       struct addrinfo *q;
+       struct addrinfo *last = NULL;
+       char *canonname = NULL;
++      bool malloc_results;
++
++      malloc_results
++	= !__libc_use_alloca (nresults * (sizeof (*results) + sizeof (size_t)));
++      if (malloc_results)
++	{
++	  results = malloc (nresults * (sizeof (*results) + sizeof (size_t)));
++	  if (results == NULL)
++	    {
++	      __free_in6ai (in6ai);
++	      return EAI_MEMORY;
++	    }
++	}
++      else
++	results = alloca (nresults * (sizeof (*results) + sizeof (size_t)));
++      order = (size_t *) (results + nresults);
+ 
+       /* Now we definitely need the interface information.  */
+       if (! check_pf_called)
+@@ -2664,6 +2680,9 @@ getaddrinfo (const char *name, const char *service,
+ 
+       /* Fill in the canonical name into the new first entry.  */
+       p->ai_canonname = canonname;
++
++      if (malloc_results)
++	free (results);
+     }
+ 
+   __free_in6ai (in6ai);
+-- 
+1.7.1
+