From: Mark Wielaard <mjw@redhat.com>
Date: Tue, 14 Jan 2014 21:13:43 +0000 (+0100)
Subject: readelf: print_debug_macro_section clear vendor array before use.
X-Git-Tag: elfutils-0.159~58
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=04781c3e80412c7051b12dbdc58a642ab258cef0;p=thirdparty%2Felfutils.git

readelf: print_debug_macro_section clear vendor array before use.

Not setting a vendor code before use would be invalid which we tried to
catch. But to detect that we do need to initialize the vendor array to
zero first.

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

diff --git a/src/ChangeLog b/src/ChangeLog
index 50b6b5884..d085d754c 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2014-01-14  Mark Wielaard  <mjw@redhat.com>
+
+	* readelf.c (print_debug_macro_section): Clear vendor array before
+	use.
+
 2014-01-15  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
 	Fix corruption of non-C++ symbols by the demangler.
diff --git a/src/readelf.c b/src/readelf.c
index 739156cf8..39912243b 100644
--- a/src/readelf.c
+++ b/src/readelf.c
@@ -6896,6 +6896,7 @@ print_debug_macro_section (Dwfl_Module *dwflmod __attribute__ ((unused)),
 	}
 
       const unsigned char *vendor[DW_MACRO_GNU_hi_user - DW_MACRO_GNU_lo_user];
+      memset (vendor, 0, sizeof vendor);
       if (flag & 0x04)
 	{
 	  // 1 byte length, for each item, 1 byte opcode, uleb128 number