Fix a potential illegal memory access when copying a corrupt input file.

Resolves: RHEL-132254
This commit is contained in:
Nick Clifton 2025-12-16 11:13:07 +00:00
parent ae50fe724f
commit 8c6590c3bb
2 changed files with 58 additions and 1 deletions

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@ -0,0 +1,49 @@
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.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
---
bfd/elf.c | 23 ++++++++++-------------
1 file changed, 10 insertions(+), 13 deletions(-)
--- binutils-2.41.orig/bfd/elf.c 2025-12-16 09:04:43.724584660 +0000
+++ binutils-2.41/bfd/elf.c 2025-12-16 09:04:52.974831776 +0000
@@ -4127,20 +4127,17 @@ bfd_elf_set_group_contents (bfd *abfd, a
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);

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@ -2,7 +2,7 @@
Summary: A GNU collection of binary utilities
Name: binutils%{?_with_debug:-debug}
Version: 2.41
Release: 60%{?dist}
Release: 61%{?dist}
License: GPL-3.0-or-later AND (GPL-3.0-or-later WITH Bison-exception-2.2) AND (LGPL-2.0-or-later WITH GCC-exception-2.0) AND BSD-3-Clause AND GFDL-1.3-or-later AND GPL-2.0-or-later AND LGPL-2.1-or-later AND LGPL-2.0-or-later
URL: https://sourceware.org/binutils
@ -397,6 +397,11 @@ Patch63: binutils-CVE-2025-11082.patch
# Lifetime: Fixed in 2.46
Patch64: binutils-CVE-2025-11083.patch
# Purpose: Stops a potential illegal memory access when copying a corrupt
# input file. PR 33050
# Lifetime: Fixed in 2.46
Patch65: binutils-CVE-2025-7546.patch
#----------------------------------------------------------------------------
# Purpose: Suppress the x86 linker's p_align-1 tests due to kernel bug on CentOS-10
@ -1436,6 +1441,9 @@ exit 0
#----------------------------------------------------------------------------
%changelog
* Tue Dec 16 2025 Nick Clifton <nickc@redhat.com> - 2.41-61
- Fix a potential illegal memory access when copying a corrupt input file. (RHEL-132254)
* Mon Nov 10 2025 Nick Clifton <nickc@redhat.com> - 2.41-60
- Fix a potential illegal memory access when linking a corrupt input file. (RHEL-126877)