[oe][meta-networking][wrynose][PATCH 16/22] libiec61850: patch CVE-2026-18582

[ankur.tyagi85@gmail.com]

From: Ankur Tyagi <ankur.tyagi85@gmail.com>

Details:
https://nvd.nist.gov/vuln/detail/cve-2026-18582

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
---
 .../libiec61850/files/CVE-2026-18582.patch    | 51 +++++++++++++++++++
 .../libiec61850/libiec61850_1.6.1.bb          |  1 +
 2 files changed, 52 insertions(+)
 create mode 100644 meta-networking/recipes-connectivity/libiec61850/files/CVE-2026-18582.patch

diff --git a/meta-networking/recipes-connectivity/libiec61850/files/CVE-2026-18582.patch b/meta-networking/recipes-connectivity/libiec61850/files/CVE-2026-18582.patch
new file mode 100644
index 0000000000..6fcd1662b9
--- /dev/null
+++ b/meta-networking/recipes-connectivity/libiec61850/files/CVE-2026-18582.patch
@@ -0,0 +1,51 @@
+From 43aa106301639f2afddf11302d25e84c5482e26c Mon Sep 17 00:00:00 2001
+From: Michael Zillgith <michael.zillgith@mz-automation.de>
+Date: Tue, 16 Jun 2026 19:24:12 +0100
+Subject: [PATCH] - MMS server: fixed - oversized RptID written to RCB can
+ trigger invalid free when reports are sent later
+ (LIB61850-561)(GHSA-7qg8-hm25-rv5v)
+
+(cherry picked from commit 5b2a69f44256b8548927d8afdd7ac5f5381abe1e)
+
+CVE: CVE-2026-18582
+Upstream-Status: Backport [https://github.com/mz-automation/libiec61850/commit/5b2a69f44256b8548927d8afdd7ac5f5381abe1e]
+
+Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
+---
+ src/iec61850/server/mms_mapping/reporting.c | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/src/iec61850/server/mms_mapping/reporting.c b/src/iec61850/server/mms_mapping/reporting.c
+index 2a230c28..a44f0583 100644
+--- a/src/iec61850/server/mms_mapping/reporting.c
++++ b/src/iec61850/server/mms_mapping/reporting.c
+@@ -557,7 +557,6 @@ updateSingleTrackingValue(MmsMapping* self, ReportControl* rc, const char* name,
+                 attributeToUpdate = trkInst->resv;
+             else if (!strcmp(name, "DatSet"))
+             {
+-
+                 char datSet[130];
+                 const char* datSetStr = MmsValue_toString(newValue);
+ 
+@@ -2664,6 +2663,12 @@ Reporting_RCBWriteAccessHandler(MmsMapping* self, ReportControl* rc, const char*
+                 goto exit_function;
+             }
+ 
++            if (MmsValue_getStringSize(value) > 129)
++            {
++                retVal = DATA_ACCESS_ERROR_OBJECT_VALUE_INVALID;
++                goto exit_function;
++            }
++
+ #if (CONFIG_MMS_THREADLESS_STACK != 1)
+             Semaphore_wait(rc->rcbValuesLock);
+ #endif
+@@ -3677,7 +3682,7 @@ sendNextReportEntrySegment(ReportControl* self)
+ 
+     const char* rptIdStr = MmsValue_toString(rptIdFromRcb);
+ 
+-    if (rptIdStr[0] == 0)
++    if (rptIdStr[0] == 0 || MmsValue_getStringSize(rptIdFromRcb) > 129)
+     {
+         /* use default rptId when RptID is empty in RCB */
+         updateWithDefaultRptId(self, &rptId);
diff --git a/meta-networking/recipes-connectivity/libiec61850/libiec61850_1.6.1.bb b/meta-networking/recipes-connectivity/libiec61850/libiec61850_1.6.1.bb
index 5a76ba5330..b22d8a09c9 100644
--- a/meta-networking/recipes-connectivity/libiec61850/libiec61850_1.6.1.bb
+++ b/meta-networking/recipes-connectivity/libiec61850/libiec61850_1.6.1.bb
@@ -17,6 +17,7 @@ SRCREV = "a13961110b8238d2d8ea577c1fb7592ba3017ad8"
 
 SRC_URI = "git://github.com/mz-automation/${BPN}.git;branch=v1.6;protocol=https;tag=v${PV} \
            file://0001-pyiec61850-Use-CMAKE_INSTALL_LIBDIR-from-GNUInstallD.patch \
+           file://CVE-2026-18582.patch \
 "