diff mbox series

[scarthgap,v2,1/2] binutils: fix CVE-2026-3441 and CVE-2026-3442

Message ID 20260513172734.3995341-1-sudumbha@cisco.com
State New
Headers show
Series [scarthgap,v2,1/2] binutils: fix CVE-2026-3441 and CVE-2026-3442 | expand

Commit Message

Sudhir Dumbhare -X (sudumbha - E INFOCHIPS PRIVATE LIMITED at Cisco) May 13, 2026, 5:27 p.m. UTC 
From: Sudhir Dumbhare <sudumbha@cisco.com>

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 <sudumbha@cisco.com>
---
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 mbox series

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 <amodra@gmail.com>
+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 <sudumbha@cisco.com>
+---
+ 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
+