binutils 2.34: Fix CVE-2021-46174

Upstream Repository: https://sourceware.org/git/binutils-gdb.git

Bug Details: https://nvd.nist.gov/vuln/detail/CVE-2021-46174
Type: Security Fix
CVE: CVE-2021-46174
Score: 7.5
Patch: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=cad4d6b91e97

(From OE-Core rev: 94f2468de191f8c1dd236efb91f3094a76ddffc9)

Signed-off-by: poojitha adireddy <pooadire@cisco.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

meta/recipes-devtools/binutils/binutils-2.34.inc

@@ -54,5 +54,6 @@ SRC_URI = "\
      file://0001-CVE-2021-45078.patch \
      file://CVE-2022-38533.patch \
      file://CVE-2023-25588.patch \
+     file://CVE-2021-46174.patch \
 "
 S  = "${WORKDIR}/git"

meta/recipes-devtools/binutils/binutils/CVE-2021-46174.patch

@@ -0,0 +1,35 @@
+From 46322722ad40ac1a75672ae0f62f4969195f1368 Mon Sep 17 00:00:00 2001
+From: Alan Modra <amodra@gmail.com>
+Date: Thu, 20 Jan 2022 13:58:38 +1030
+Subject: [PATCH] PR28753, buffer overflow in read_section_stabs_debugging_info
+
+	PR 28753
+	* rddbg.c (read_section_stabs_debugging_info): Don't read past
+	end of section when concatentating stab strings.
+
+CVE: CVE-2021-46174
+Upstream-Status: Backport [https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=cad4d6b91e97]
+
+(cherry picked from commit 085b299b71721e15f5c5c5344dc3e4e4536dadba)
+(cherry picked from commit cad4d6b91e97b6962807d33c04ed7e7797788438)
+Signed-off-by: poojitha adireddy <pooadire@cisco.com>
+---
+ binutils/rddbg.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/binutils/rddbg.c b/binutils/rddbg.c
+index 72e934055b5..5e76d94a3c4 100644
+--- a/binutils/rddbg.c
++++ b/binutils/rddbg.c
+@@ -207,7 +207,7 @@ read_section_stabs_debugging_info (bfd *abfd, asymbol **syms, long symcount,
+ 		     an attempt to read the byte before 'strings' would occur.  */
+ 		  while ((len = strlen (s)) > 0
+ 			 && s[len  - 1] == '\\'
+-			 && stab + 12 < stabs + stabsize)
++			 && stab + 16 <= stabs + stabsize)
+ 		    {
+ 		      char *p;
+ 
+-- 
+2.23.1
+