[Medium] Patch gdb for CVE-2025-7546 (microsoft#14349)

Author: akhila-guruju

SPECS/gdb/CVE-2025-7546.patch

@@ -0,0 +1,56 @@
+From 41461010eb7c79fee7a9d5f6209accdaac66cc6b Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <[email protected]>
+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.
+
+Signed-off-by: H.J. Lu <[email protected]>
+
+Upstream patch reference: https://sourceware.org/git/?p=binutils-gdb.git;a=patch;h=41461010eb7c79fee7a9d5f6209accdaac66cc6b
+---
+ 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
+

SPECS/gdb/gdb.spec

@@ -1,7 +1,7 @@
 Summary:        C debugger
 Name:           gdb
 Version:        13.2
-Release:        4%{?dist}
+Release:        5%{?dist}
 License:        GPLv2+
 Vendor:         Microsoft Corporation
 Distribution:   Azure Linux
@@ -11,6 +11,7 @@ Source0:        https://ftp.gnu.org/gnu/%{name}/%{name}-%{version}.tar.xz
 Patch0:         CVE-2023-39128.patch
 Patch1:         CVE-2023-39129.patch
 Patch2:         CVE-2023-39130.patch
+Patch3:         CVE-2025-7546.patch
 BuildRequires:  expat-devel
 BuildRequires:  gcc-c++
 BuildRequires:  gcc-gfortran
@@ -104,6 +105,9 @@ make check TESTS='gdb.base/default.exp'
 %{_mandir}/*/*
 
 %changelog
+* Fri Jul 18 2025 Akhila Guruju <[email protected]> - 13.2-5
+- Patch CVE-2025-7546
+
 * Mon Feb 03 2025 Andrew Phelps <[email protected]> - 13.2-4
 - Enable cross-debugging on all supported targets