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binutils: fix CVE-2025-69649, and CVE-2025-69652

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CVE-2025-69649:
  Null pointer dereference in readelf before 2.46 results in segfault when
  processing a crafted ELF binary with malformed header fields.
  No evidence of memory corruption beyond the null pointer dereference, nor
  any possibility of code execution, was observed.

CVE-2025-69652:
  Null pointer dereference in readelf when processing a crafted ELF binary
  with malformed DWARF abbrev or debug information which leads to SIGABORT.
  No evidence of memory corruption or code execution was observed; the impact
  is limited to denial of service.

(From OE-Core rev: 86dd1306e350c4cd3b36a39254d6f17587960a60)

Signed-off-by: Roland Kovacs <roland.kovacs@est.tech>
[YC: patches are referenced in the NVD database:
     https://nvd.nist.gov/vuln/detail/CVE-2025-69649
     https://nvd.nist.gov/vuln/detail/CVE-2025-69652 ]
Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
Signed-off-by: Paul Barker <paul@pbarker.dev>
This commit is contained in:
Roland Kovacs
2026-07-09 14:37:40 +02:00
committed by Paul Barker
parent 5f7a875f6d
commit 72b30efa58
3 changed files with 85 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
meta/recipes-devtools/binutils/binutils-2.42.inc
View File

@@ -74,6 +74,8 @@ SRC_URI = "\
file://0030-CVE-2025-11840.patch \
file://CVE-2025-69644-CVE-2025-69647.patch \
file://CVE-2025-69648.patch \
file://CVE-2025-69649.patch \
file://CVE-2025-69652.patch \
file://CVE-2026-6846.patch \
"
S = "${WORKDIR}/git"

44
meta/recipes-devtools/binutils/binutils/CVE-2025-69649.patch Normal file
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@@ -0,0 +1,44 @@
From 37c8055eed3178a46417045dda63db7af21fd046 Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Mon, 8 Dec 2025 15:58:33 +1030
Subject: [PATCH] PR 33697, fuzzer segfault
PR 33697
* readelf.c (process_relocs): Don't segfault on no sections.
CVE: CVE-2025-69649
Upstream-Status: Backport [https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=66a3492ce68e1ae45b2489bd9a815c39ea5d7f66]
Note:
The difference between this patch on v2.42 and upstream v2.46 is due to
the loop body printing the relocations in-line, which then in commit
8e8d0b63ff15896cc2c228c01f18dfcf2a4a9305 have been factored out to a
separate 'display_relocations()' function.
See: [https://sourceware.org/git/?p=binutils-gdb.git;a=blobdiff;f=binutils/readelf.c;h=fa0de3a7e0d9c2acc18fe047a7019e09f1ce3894;hp=c1006480b7bc3e83dd87fb20d215342375614af9;hb=8e8d0b63ff15896cc2c228c01f18dfcf2a4a9305;hpb=31c21e2c13d85793b525f74aa911eb28700ed89c]
Signed-off-by: Roland Kovacs <roland.kovacs@est.tech>
---
binutils/readelf.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 5e4ad6ea6ad..8c1987ffaec 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -8961,9 +8961,9 @@ process_relocs (Filedata * filedata)
size_t i;
bool found = false;
- for (i = 0, section = filedata->section_headers;
- i < filedata->file_header.e_shnum;
- i++, section++)
+ section = filedata->section_headers;
+ if (section != NULL)
+ for (i = 0; i < filedata->file_header.e_shnum; i++, section++)
{
if ( section->sh_type != SHT_RELA
&& section->sh_type != SHT_REL
--
2.34.1

39
meta/recipes-devtools/binutils/binutils/CVE-2025-69652.patch Normal file
View File

@@ -0,0 +1,39 @@
From cb4f8fe24cc86a9f050be4cf9c619940f632ea6a Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Mon, 8 Dec 2025 16:04:44 +1030
Subject: [PATCH] PR 33701, abort in byte_get_little_endian
PR 33701
* dwarf.c (process_debug_info): Set debug_info_p NULL when
DEBUG_INFO_UNAVAILABLE.
CVE: CVE-2025-69652
Upstream-Status: Backport [https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=44b79abd0fa12e7947252eb4c6e5d16ed6033e01]
Signed-off-by: Roland Kovacs <roland.kovacs@est.tech>
---
binutils/dwarf.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/binutils/dwarf.c b/binutils/dwarf.c
index 615e051b2bf..13b11b46e41 100644
--- a/binutils/dwarf.c
+++ b/binutils/dwarf.c
@@ -4222,9 +4222,11 @@ process_debug_info (struct dwarf_section * section,
break;
}
- debug_info *debug_info_p =
- (debug_information && unit < alloc_num_debug_info_entries)
- ? debug_information + unit : NULL;
+ debug_info *debug_info_p = NULL;
+ if (debug_information
+ && num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
+ && unit < alloc_num_debug_info_entries)
+ debug_info_p = debug_information + unit;
assert (!debug_info_p
|| (debug_info_p->num_loc_offsets
--
2.34.1