new file mode 100644
@@ -0,0 +1,39 @@
+From 632a7498f834ff07ecf7a3dd604c06f6b89dd768 Mon Sep 17 00:00:00 2001
+From: Tobias Brunner <tobias@strongswan.org>
+Date: Thu, 4 Jun 2026 10:00:02 +0200
+Subject: [PATCH] eap-aka: Only accept AKA-Synchronization-Failure if expected
+
+This fixes a NULL-pointer dereference if the client sends such an error
+before the server issued a challenge and allocated this->rand.
+
+Fixes: 26e246769224 ("ported EAP-AKA branch into trunk")
+Fixes: 4735965fc048 ("EAP servers check if the received EAP message was expected")
+Fixes: CVE-2026-78126
+CVE: CVE-2026-78126
+Upstream-Status: Backport [https://download.strongswan.org/security/CVE-2026-78126/]
+Signed-off-by: Abhishek Bachiphale <Abhishek.Bachiphale@windriver.com>
+
+---
+ src/libcharon/plugins/eap_aka/eap_aka_server.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/src/libcharon/plugins/eap_aka/eap_aka_server.c b/src/libcharon/plugins/eap_aka/eap_aka_server.c
+index 89e51c733bec..1140fea57907 100644
+--- a/src/libcharon/plugins/eap_aka/eap_aka_server.c
++++ b/src/libcharon/plugins/eap_aka/eap_aka_server.c
+@@ -505,6 +505,12 @@ static status_t process_synchronize(private_eap_aka_server_t *this,
+ simaka_attribute_t type;
+ chunk_t data, auts = chunk_empty;
+
++ if (this->pending != AKA_CHALLENGE)
++ {
++ DBG1(DBG_IKE, "received %N, but not expected",
++ simaka_subtype_names, AKA_SYNCHRONIZATION_FAILURE);
++ return FAILED;
++ }
+ if (this->synchronized)
+ {
+ DBG1(DBG_IKE, "received %N, but peer did already resynchronize",
+--
+2.43.0
+
@@ -12,6 +12,7 @@ SRC_URI = "https://download.strongswan.org/strongswan-${PV}.tar.bz2 \
file://CVE-2026-47895.patch \
file://CVE-2026-78123.patch \
file://CVE-2026-78124.patch \
+ file://CVE-2026-78126.patch \
"
SRC_URI[sha256sum] = "07df7cedae56a7f3bb07e66d21a1f9f87e961db70e99184e11d3819413e4f87c"
strongSwan 4.1.10 through 6.0.7 allows a NULL pointer dereference in the eap-aka plugin. Reference: [https://nvd.nist.gov/vuln/detail/cve-2026-78126] [https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78126).html] [https://security-tracker.debian.org/tracker/CVE-2026-78126] Upstream Patch: [https://download.strongswan.org/security/CVE-2026-78126/] Signed-off-by: Abhishek Bachiphale <Abhishek.Bachiphale@windriver.com> --- .../strongswan/CVE-2026-78126.patch | 39 +++++++++++++++++++ .../strongswan/strongswan_6.0.6.bb | 1 + 2 files changed, 40 insertions(+) create mode 100644 meta-networking/recipes-support/strongswan/strongswan/CVE-2026-78126.patch