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binutils: Fix CVE-2025-11494

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Since x86 .eh_frame section may reference _GLOBAL_OFFSET_TABLE_, keep
_GLOBAL_OFFSET_TABLE_ if there is dynamic section and the output
.eh_frame section is non-empty.

Backport a patch from upstream to fix CVE-2025-11494
Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=patch;h=b6ac5a8a5b82f0ae6a4642c8d7149b325f4cc60a]

(From OE-Core rev: e087881bece2884f8d1a3c6d0dd7d69b40eb6732)

Signed-off-by: Deepesh Varatharajan <Deepesh.Varatharajan@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Deepesh Varatharajan 2025-12-16 01:08:35 -08:00 committed by Steve Sakoman
parent de3a6b0d24
commit c65b128458
2 changed files with 44 additions and 0 deletions
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1
meta/recipes-devtools/binutils/binutils-2.42.inc
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@ -66,5 +66,6 @@ SRC_URI = "\
file://CVE-2025-11414.patch \
file://CVE-2025-11412.patch \
file://CVE-2025-11413.patch \
file://0028-CVE-2025-11494.patch \
"
S = "${WORKDIR}/git"

43
meta/recipes-devtools/binutils/binutils/0028-CVE-2025-11494.patch Normal file
View File

@ -0,0 +1,43 @@
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Tue, 30 Sep 2025 08:13:56 +0800
Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=patch;h=b6ac5a8a5b82f0ae6a4642c8d7149b325f4cc60a]
CVE: CVE-2025-11494
Since x86 .eh_frame section may reference _GLOBAL_OFFSET_TABLE_, keep
_GLOBAL_OFFSET_TABLE_ if there is dynamic section and the output
.eh_frame section is non-empty.
PR ld/33499
* elfxx-x86.c (_bfd_x86_elf_late_size_sections): Keep
_GLOBAL_OFFSET_TABLE_ if there is dynamic section and the
output .eh_frame section is non-empty.
Signed-off-by: Deepesh Varatharajan <Deepesh.Varatharajan@windriver.com>
diff --git a/bfd/elfxx-x86.c b/bfd/elfxx-x86.c
index c054f7cd..ddc15945 100644
--- a/bfd/elfxx-x86.c
+++ b/bfd/elfxx-x86.c
@@ -2447,6 +2447,8 @@ _bfd_x86_elf_late_size_sections (bfd *output_bfd,
if (htab->elf.sgotplt)
{
+ asection *eh_frame;
+
/* Don't allocate .got.plt section if there are no GOT nor PLT
entries and there is no reference to _GLOBAL_OFFSET_TABLE_. */
if ((htab->elf.hgot == NULL
@@ -2459,7 +2461,11 @@ _bfd_x86_elf_late_size_sections (bfd *output_bfd,
&& (htab->elf.iplt == NULL
|| htab->elf.iplt->size == 0)
&& (htab->elf.igotplt == NULL
- || htab->elf.igotplt->size == 0))
+ || htab->elf.igotplt->size == 0)
+ && (!htab->elf.dynamic_sections_created
+ || (eh_frame = bfd_get_section_by_name (output_bfd,
+ ".eh_frame")) == NULL
+ || eh_frame->rawsize == 0))
{
htab->elf.sgotplt->size = 0;
/* Solaris requires to keep _GLOBAL_OFFSET_TABLE_ even if it