[OE-core][wrynose][PATCH 3/8] openssh: Fix CVE-2026-59998

["Devansh Patel -X (devanshp - E INFOCHIPS PRIVATE LIMITED at Cisco)" <devanshp@cisco.com>]

From: Devansh Patel <devanshp@cisco.com>

This patch applies the upstream OpenSSH 10.4p1 backport for
CVE-2026-59998. The upstream fix commit is referenced in [1],
and the public CVE advisory is referenced in [2].

[1] https://github.com/openssh/openssh-portable/commit/8058c5bdb507591b79ec926221fbe6fcc296d432
[2] https://www.cve.org/CVERecord?id=CVE-2026-59998

Signed-off-by: Devansh Patel <devanshp@cisco.com>
---
 .../openssh/openssh/CVE-2026-59998.patch      | 36 +++++++++++++++++++
 .../openssh/openssh_10.3p1.bb                 |  1 +
 2 files changed, 37 insertions(+)
 create mode 100644 meta/recipes-connectivity/openssh/openssh/CVE-2026-59998.patch

diff --git a/meta/recipes-connectivity/openssh/openssh/CVE-2026-59998.patch b/meta/recipes-connectivity/openssh/openssh/CVE-2026-59998.patch
new file mode 100644
index 0000000000..3e15fe19fa
--- /dev/null
+++ b/meta/recipes-connectivity/openssh/openssh/CVE-2026-59998.patch
@@ -0,0 +1,36 @@
+From 94a089cd331eeea77ffd6fd715e61d281c3b97c3 Mon Sep 17 00:00:00 2001
+From: "djm@openbsd.org" <djm@openbsd.org>
+Date: Wed, 24 Jun 2026 06:55:12 +0000
+Subject: [PATCH] upstream: mention a caveat regarding
+ GSSAPIStrictAcceptorCheck in
+
+some environments
+
+OpenBSD-Commit-ID: aa7158d8f22cb34063c1c2d3cbcf30a9489847c2
+
+CVE: CVE-2026-59998
+Upstream-Status: Backport [https://github.com/openssh/openssh-portable/commit/8058c5bdb507591b79ec926221fbe6fcc296d432]
+
+Backport Changes:
+- Omitted the upstream OpenBSD revision and Mdocdate-only hunks in
+  sshd_config.5 and retained the Wrynose OpenSSH 10.3p1 values because
+  this stable backport carries only the security-relevant documentation.
+
+(cherry picked from commit 8058c5bdb507591b79ec926221fbe6fcc296d432)
+Signed-off-by: Devansh Patel <devanshp@cisco.com>
+---
+ sshd_config.5 | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/sshd_config.5 b/sshd_config.5
+index 3f5e29812..22b9039d2 100644
+--- a/sshd_config.5
++++ b/sshd_config.5
+@@ -769,6 +769,7 @@ machine's default store.
+ This facility is provided to assist with operation on multi homed machines.
+ The default is
+ .Cm yes .
++This option may not be effective in Windows Active Directory environments.
+ .It Cm HostbasedAcceptedAlgorithms
+ Specifies the signature algorithms that will be accepted for hostbased
+ authentication as a list of comma-separated patterns.
diff --git a/meta/recipes-connectivity/openssh/openssh_10.3p1.bb b/meta/recipes-connectivity/openssh/openssh_10.3p1.bb
index 87bd417b2d..b9f2a37c57 100644
--- a/meta/recipes-connectivity/openssh/openssh_10.3p1.bb
+++ b/meta/recipes-connectivity/openssh/openssh_10.3p1.bb
@@ -26,6 +26,7 @@ SRC_URI = "https://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-${PV}.ta
            file://0001-regress-banner.sh-log-input-and-output-files-on-erro.patch \
            file://CVE-2026-59999.patch \
            file://CVE-2026-59997.patch \
+           file://CVE-2026-59998.patch \
            "
 SRC_URI[sha256sum] = "56682a36bb92dcf4b4f016fd8ec8e74059b79a8de25c15d670d731e7d18e45f4"
 
-- 
2.35.6