binutils: fix CVE-2025-11840

CVE-2025-11840

PR 33455
[BUG] A SEGV in vfinfo at ldmisc.c:527
A reloc howto set up with EMPTY_HOWTO has a NULL name.  More than one
place emitting diagnostics assumes a reloc howto won't have a NULL
name.

https://sourceware.org/bugzilla/show_bug.cgi?id=33455

Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=f6b0f53a36820da91eadfa9f466c22f92e4256e0]

(From OE-Core rev: 85e62aad46eb096cf92907288a3eb1b6f76072c4)

Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

2 files changed, 38 insertions, 0 deletions

diff --git a/meta/recipes-devtools/binutils/binutils-2.38.inc b/meta/recipes-devtools/binutils/binutils-2.38.inc
index 426c00ce3f..d268880409 100644
--- a/meta/recipes-devtools/binutils/binutils-2.38.inc
+++ b/meta/recipes-devtools/binutils/binutils-2.38.inc
@@ -88,5 +88,6 @@ SRC_URI = "\
      file://CVE-2025-11413.patch \
      file://0048-CVE-2025-11494.patch \
      file://0049-CVE-2025-11839.patch \
+     file://0050-CVE-2025-11840.patch \
 "
 S  = "${WORKDIR}/git"
diff --git a/meta/recipes-devtools/binutils/binutils/0050-CVE-2025-11840.patch b/meta/recipes-devtools/binutils/binutils/0050-CVE-2025-11840.patch
new file mode 100644
index 0000000000..3fb4db880e
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/0050-CVE-2025-11840.patch
@@ -0,0 +1,37 @@
+From f6b0f53a36820da91eadfa9f466c22f92e4256e0 Mon Sep 17 00:00:00 2001
+From: Alan Modra <amodra@gmail.com>
+Date: Mon, 3 Nov 2025 09:03:37 +1030
+Subject: [PATCH] PR 33455 SEGV in vfinfo at ldmisc.c:527
+
+A reloc howto set up with EMPTY_HOWTO has a NULL name.  More than one
+place emitting diagnostics assumes a reloc howto won't have a NULL
+name.
+
+        PR 33455
+        * coffcode.h (coff_slurp_reloc_table): Don't allow a howto with
+        a NULL name.
+---
+ bfd/coffcode.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=f6b0f53a36820da91eadfa9f466c22f92e4256e0]
+CVE: CVE-2025-11840
+
+Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com>
+
+diff --git a/bfd/coffcode.h b/bfd/coffcode.h
+index 1e5acc0032c..ce1e39131b4 100644
+--- a/bfd/coffcode.h
++++ b/bfd/coffcode.h
+@@ -5345,7 +5345,7 @@ coff_slurp_reloc_table (bfd * abfd, sec_ptr asect, asymbol ** symbols)
+       RTYPE2HOWTO (cache_ptr, &dst);
+ #endif /* RELOC_PROCESSING */
+ 
+-      if (cache_ptr->howto == NULL)
++      if (cache_ptr->howto == NULL || cache_ptr->howto->name == NULL)
+        {
+          _bfd_error_handler
+            /* xgettext:c-format */
+-- 
+2.43.7
+