binutils: Fix CVE-2025-7546

Report corrupted group section instead of trying to recover.

CVE: CVE-2025-7546
Upstream-Status: Backport [https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=41461010eb7c79fee7a9d5f6209accdaac66cc6b]
PR  33050 [https://sourceware.org/bugzilla/show_bug.cgi?id=33050]

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

diff --git a/meta/recipes-devtools/binutils/binutils-2.44.inc b/meta/recipes-devtools/binutils/binutils-2.44.inc
index 8a26fe76f14e1adec80ce7b26d2f9c06b83cb3ca..32928ee167049f2015b716824a7e5002d5f53e91 100644 (file)
--- a/meta/recipes-devtools/binutils/binutils-2.44.inc
+++ b/meta/recipes-devtools/binutils/binutils-2.44.inc
@@ -44,5 +44,6 @@ SRC_URI = "\
      file://0016-CVE-2025-3198.patch \
      file://0018-CVE-2025-5245.patch \
      file://0019-CVE-2025-7545.patch \
+     file://0018-CVE-2025-7546.patch \
 "
 S  = "${WORKDIR}/git"

diff --git a/meta/recipes-devtools/binutils/binutils/0018-CVE-2025-7546.patch b/meta/recipes-devtools/binutils/binutils/0018-CVE-2025-7546.patch
new file mode 100644 (file)
index 0000000..23c3809
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/0018-CVE-2025-7546.patch
@@ -0,0 +1,58 @@
+From 41461010eb7c79fee7a9d5f6209accdaac66cc6b Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl.tools@gmail.com>
+Date: Sat, 21 Jun 2025 06:52:00 +0800
+Subject: [PATCH] elf: Report corrupted group section
+
+Report corrupted group section instead of trying to recover.
+
+       PR binutils/33050
+       * elf.c (bfd_elf_set_group_contents): Report corrupted group
+       section.
+
+Upstream-Status: Backport [https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=41461010eb7c79fee7a9d5f6209accdaac66cc6b]
+CVE: CVE-2025-7546
+
+Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
+Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com>
+---
+ bfd/elf.c | 23 ++++++++++-------------
+ 1 file changed, 10 insertions(+), 13 deletions(-)
+
+diff --git a/bfd/elf.c b/bfd/elf.c
+index 14ce15c7254..ee894eb05f2 100644
+--- a/bfd/elf.c
++++ b/bfd/elf.c
+@@ -3971,20 +3971,17 @@ bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg)
+       break;
+     }
+ 
+-  /* We should always get here with loc == sec->contents + 4, but it is
+-     possible to craft bogus SHT_GROUP sections that will cause segfaults
+-     in objcopy without checking loc here and in the loop above.  */
+-  if (loc == sec->contents)
+-    BFD_ASSERT (0);
+-  else
++  /* We should always get here with loc == sec->contents + 4.  Return
++     an error for bogus SHT_GROUP sections.  */
++  loc -= 4;
++  if (loc != sec->contents)
+     {
+-      loc -= 4;
+-      if (loc != sec->contents)
+-      {
+-        BFD_ASSERT (0);
+-        memset (sec->contents + 4, 0, loc - sec->contents);
+-        loc = sec->contents;
+-      }
++      /* xgettext:c-format */
++      _bfd_error_handler (_("%pB: corrupted group section: `%pA'"),
++                        abfd, sec);
++      bfd_set_error (bfd_error_bad_value);
++      *failedptr = true;
++      return;
+     }
+ 
+   H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc);
+-- 
+2.43.5
+