On Wed May 13, 2026 at 7:27 PM CEST, Sudhir Dumbhare -X (sudumbha - E INFOCHIPS
PRIVATE LIMITED at Cisco) wrote:
> From: Sudhir Dumbhare <[email protected]>
>
> This patch applies the upstream fix [1], which addresses two out-of-bounds
> read issues in bfd/xcofflink.c within xcoff_link_add_symbols(). The changes
> shown in [2] are referenced by [3] and [4].
>
> [1]
> https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=c2bf7de1eb77a91d7a3c86d56408bf57de540faf
> [2]
> https://sourceware.org/git/?p=binutils-gdb.git;a=blobdiff;f=bfd/xcofflink.c;h=1781182fa6a3f92e5e91996f8b0dcf3ab192679b;hp=fde21c9f9583baff05e72e390e6bb896d02f9d43;hb=c2bf7de1eb77a91d7a3c86d56408bf57de540faf;hpb=d7f532cb3a46527
> [3] https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-3441
> [4] https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-3442
>
> Reference:
> https://nvd.nist.gov/vuln/detail/CVE-2026-3441
> https://nvd.nist.gov/vuln/detail/CVE-2026-3442
> https://www.suse.com/security/cve/CVE-2026-3441.html
> https://www.suse.com/security/cve/CVE-2026-3442.html
>
> Signed-off-by: Sudhir Dumbhare <[email protected]>
> ---
Hello,
Thanks for this new version but as far as I can tell, those CVEs also
apply to master and wrynose, can you send the fix for those branches and
ping back here?
Thanks!
> Changes v1 -> v2:
> - fixed tab issue around context lines
>
> .../binutils/binutils-2.42.inc | 1 +
> .../CVE-2026-3441_CVE-2026-3442.patch | 51 +++++++++++++++++++
> 2 files changed, 52 insertions(+)
> create mode 100644
> meta/recipes-devtools/binutils/binutils/CVE-2026-3441_CVE-2026-3442.patch
>
> diff --git a/meta/recipes-devtools/binutils/binutils-2.42.inc
> b/meta/recipes-devtools/binutils/binutils-2.42.inc
> index 1a865c45f4..1a91792b13 100644
> --- a/meta/recipes-devtools/binutils/binutils-2.42.inc
> +++ b/meta/recipes-devtools/binutils/binutils-2.42.inc
> @@ -74,5 +74,6 @@ SRC_URI = "\
> file://0030-CVE-2025-11840.patch \
> file://CVE-2025-69647.patch \
> file://CVE-2025-69648.patch \
> + file://CVE-2026-3441_CVE-2026-3442.patch \
> "
> S = "${WORKDIR}/git"
> diff --git
> a/meta/recipes-devtools/binutils/binutils/CVE-2026-3441_CVE-2026-3442.patch
> b/meta/recipes-devtools/binutils/binutils/CVE-2026-3441_CVE-2026-3442.patch
> new file mode 100644
> index 0000000000..ada80e5189
> --- /dev/null
> +++
> b/meta/recipes-devtools/binutils/binutils/CVE-2026-3441_CVE-2026-3442.patch
> @@ -0,0 +1,51 @@
> +From a28f517b1e3c3c22d5984e82046dcb844eef63fd Mon Sep 17 00:00:00 2001
> +From: Alan Modra <[email protected]>
> +Date: Sat, 28 Feb 2026 13:16:40 +1030
> +Subject: [PATCH] xcofflink buffer overflows
> +
> +This fixes two fuzzed object file out-of-bounds accesses.
> +
> + * xcofflink.c (xcoff_link_add_symbols): Properly bounds check
> + XTY_LD x_scnlen index. Sanity check r_symndx before using it
> + to index sym hashes.
> +
> +CVE: CVE-2026-3441 CVE-2026-3442
> +Upstream-Status: Backport
> [https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=c2bf7de1eb77a91d7a3c86d56408bf57de540faf]
> +
> +(cherry picked from commit c2bf7de1eb77a91d7a3c86d56408bf57de540faf)
> +Signed-off-by: Sudhir Dumbhare <[email protected]>
> +---
> + bfd/xcofflink.c | 10 ++++------
> + 1 file changed, 4 insertions(+), 6 deletions(-)
> +
> +diff --git a/bfd/xcofflink.c b/bfd/xcofflink.c
> +index e0165d202a9..88c49755c64 100644
> +--- a/bfd/xcofflink.c
> ++++ b/bfd/xcofflink.c
> +@@ -1873,12 +1873,9 @@ xcoff_link_add_symbols (bfd *abfd, struct
> bfd_link_info *info)
> + follow its appropriate XTY_SD symbol. The .set pseudo op can
> + cause the XTY_LD to not follow the XTY_SD symbol. */
> + {
> +- bool bad;
> +-
> +- bad = false;
> +- if (aux.x_csect.x_scnlen.u64
> +- >= (size_t) (esym - (bfd_byte *) obj_coff_external_syms (abfd)))
> +- bad = true;
> ++ bool bad = (aux.x_csect.x_scnlen.u64
> ++ >= ((esym - (bfd_byte *) obj_coff_external_syms (abfd))
> ++ / symesz));
> + if (! bad)
> + {
> + section = xcoff_data (abfd)->csects[aux.x_csect.x_scnlen.u64];
> +@@ -2244,6 +2241,7 @@ xcoff_link_add_symbols (bfd *abfd, struct
> bfd_link_info *info)
> + functions imported from dynamic objects. */
> + if (info->output_bfd->xvec == abfd->xvec
> + && *rel_csect != bfd_und_section_ptr
> ++ && (unsigned long) rel->r_symndx < obj_raw_syment_count (abfd)
> + && obj_xcoff_sym_hashes (abfd)[rel->r_symndx] != NULL)
> + {
> + struct xcoff_link_hash_entry *h;
> +--
> +2.35.6
> +
--
Yoann Congal
Smile ECS
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