From: Nick Clifton <nickc@redhat.com>
Date: Fri, 2 Dec 2016 15:43:53 +0000 (+0000)
Subject: Fix seg-fault in the linker when attempting to print out a malicious linker script.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f5ac6ab387ef0974f6348ac7febc691fbb6c0eb4;p=binutils-gdb.git

Fix seg-fault in the linker when attempting to print out a malicious linker script.

	PR ld/20910
	* ldmain.c (main): Prevent evaluation of %<char> sequences when
	printing out a linker script.
---

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 1d1c91ae72f..a4b6949333e 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,5 +1,9 @@
 2016-12-02  Nick Clifton  <nickc@redhat.com>
 
+	PR ld/20910
+	* ldmain.c (main): Prevent evaluation of %<char> sequences when
+	printing out a linker script.
+
 	PR ld/20911
 	* ldctor.c (ldctor_build_sets): Produce alternative error message
 	if the reloc was being applied to a special section.
diff --git a/ld/ldmain.c b/ld/ldmain.c
index 2f15ba72a9c..41684ba195f 100644
--- a/ld/ldmain.c
+++ b/ld/ldmain.c
@@ -368,7 +368,7 @@ main (int argc, char **argv)
 	  while ((n = fread (buf, 1, ld_bufsz - 1, saved_script_handle)) > 0)
 	    {
 	      buf[n] = 0;
-	      info_msg (buf);
+	      info_msg ("%s", buf);
 	    }
 	  rewind (saved_script_handle);
 	  free (buf);