From: Mark Wielaard <mjw@redhat.com>
Date: Mon, 15 Dec 2014 10:17:33 +0000 (+0100)
Subject: libelf: Clear any garbage left in the ar name table.
X-Git-Tag: elfutils-0.161~24
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9520242b2ab23a3e713f2b7d1a968777feb06bfa;p=thirdparty%2Felfutils.git

libelf: Clear any garbage left in the ar name table.

Signed-off-by: Mark Wielaard <mjw@redhat.com>
---

diff --git a/libelf/ChangeLog b/libelf/ChangeLog
index cf168e7f9..7406509e1 100644
--- a/libelf/ChangeLog
+++ b/libelf/ChangeLog
@@ -1,3 +1,8 @@
+2014-12-15  Mark Wielaard  <mjw@redhat.com>
+
+	* elf_begin.c (read_long_names): Clear any garbage left in the
+	name table.
+
 2014-12-11  Mark Wielaard  <mjw@redhat.com>
 
 	* elf_begin.c (file_read_elf): Correct ELF64 section offset check.
diff --git a/libelf/elf_begin.c b/libelf/elf_begin.c
index 7fb5fa5be..c24a36426 100644
--- a/libelf/elf_begin.c
+++ b/libelf/elf_begin.c
@@ -734,10 +734,14 @@ read_long_names (Elf *elf)
       runp = newp;
       while (1)
         {
+	  char *startp = runp;
 	  runp = (char *) memchr (runp, '/', newp + len - runp);
 	  if (runp == NULL)
-	    /* This was the last entry.  */
-	    break;
+	    {
+	      /* This was the last entry.  Clear any left overs.  */
+	      memset (startp, '\0', newp + len - startp);
+	      break;
+	    }
 
 	  /* NUL-terminate the string.  */
 	  *runp = '\0';