[OE-core][wrynose][PATCH 01/10] openssh: Fix CVE-2026-106584

["Hetvi Thakar -X (hthakar - E INFOCHIPS PRIVATE LIMITED at Cisco)" <hthakar@cisco.com>]

From: Hetvi Thakar <hthakar@cisco.com>

This patch applies the upstream fix as referenced in [2], using the
commit shown in [1].

[1] https://github.com/openssh/openssh-portable/commit/aef20dfe30e68a469911a229b9117e7134766311
[2] https://ubuntu.com/security/CVE-2026-106584

Signed-off-by: Hetvi Thakar <hthakar@cisco.com>
---
 .../openssh/openssh/CVE-2026-106584.patch     | 39 +++++++++++++++++++
 .../openssh/openssh_10.3p1.bb                 |  1 +
 2 files changed, 40 insertions(+)
 create mode 100644 meta/recipes-connectivity/openssh/openssh/CVE-2026-106584.patch

diff --git a/meta/recipes-connectivity/openssh/openssh/CVE-2026-106584.patch b/meta/recipes-connectivity/openssh/openssh/CVE-2026-106584.patch
new file mode 100644
index 0000000000..31b35aad9a
--- /dev/null
+++ b/meta/recipes-connectivity/openssh/openssh/CVE-2026-106584.patch
@@ -0,0 +1,39 @@
+From aef20dfe30e68a469911a229b9117e7134766311 Mon Sep 17 00:00:00 2001
+From: "djm@openbsd.org" <djm@openbsd.org>
+Date: Tue, 15 Sep 2026 08:31:46 +0000
+Subject: [PATCH] upstream: Correct handling of DST when converting dates
+
+Timestamps conversion was ignoring Daylight Savings Time (DST) causing
+date conversions to be +/-1 hour under some circumstances.
+
+bz4004; from Khush Patel, ok deraadt
+
+OpenBSD-Commit-ID: bd5eb2603c04d4b5072b0e593b137a98ef75b731
+
+CVE: CVE-2026-106584
+Upstream-Status: Backport [https://github.com/openssh/openssh-portable/commit/aef20dfe30e68a469911a229b9117e7134766311]
+
+Backport Changes:
+- Omitted the upstream misc.c OpenBSD revision-only hunk. OpenSSH 10.3p1
+  also lacks earlier error-sentinel handling; that is not part of this
+  DST fix and is not imported here.
+
+(cherry picked from commit aef20dfe30e68a469911a229b9117e7134766311)
+Signed-off-by: Hetvi Thakar <hthakar@cisco.com>
+---
+ misc.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/misc.c b/misc.c
+--- a/misc.c
++++ b/misc.c
+@@ -2591,6 +2591,7 @@ parse_absolute_time(const char *s, uint64_t *tp)
+ 		if ((tt = timegm(&tm)) < 0)
+ 			return SSH_ERR_INVALID_FORMAT;
+ 	} else {
++		tm.tm_isdst = -1;	/* mktime decides DST */
+ 		if ((tt = mktime(&tm)) < 0)
+ 			return SSH_ERR_INVALID_FORMAT;
+ 	}
+-- 
+2.43.0
diff --git a/meta/recipes-connectivity/openssh/openssh_10.3p1.bb b/meta/recipes-connectivity/openssh/openssh_10.3p1.bb
index 0b34e4563c..aceaa6420f 100644
--- a/meta/recipes-connectivity/openssh/openssh_10.3p1.bb
+++ b/meta/recipes-connectivity/openssh/openssh_10.3p1.bb
@@ -34,6 +34,7 @@ SRC_URI = "https://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-${PV}.ta
            file://CVE-2026-73283.patch \
            file://CVE-2026-73282.patch \
            file://CVE-2026-73281.patch \
+           file://CVE-2026-106584.patch \
            "
 SRC_URI[sha256sum] = "56682a36bb92dcf4b4f016fd8ec8e74059b79a8de25c15d670d731e7d18e45f4"
 
-- 
2.35.6