freerdp3: fix CVE-2026-24676

Details: https://nvd.nist.gov/vuln/detail/CVE-2026-24676

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>

meta-oe/recipes-support/freerdp/freerdp3/CVE-2026-24676.patch

@@ -0,0 +1,34 @@
+From 0a2248a4adbee77122270062bebe00143d3ee96a Mon Sep 17 00:00:00 2001
+From: akallabeth <akallabeth@posteo.net>
+Date: Mon, 26 Jan 2026 10:20:23 +0100
+Subject: [PATCH] [channels,audin] reset audin->format
+
+Whenever the underlying structure changes reset the pointer to NULL
+
+CVE: CVE-2026-24676
+Upstream-Status: Backport [https://github.com/FreeRDP/FreeRDP/commit/026b81ae5831ac1598d8f7371e0d0996fac7db00]
+Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
+---
+ channels/audin/client/audin_main.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/channels/audin/client/audin_main.c b/channels/audin/client/audin_main.c
+index 1578d26ac..2c91d9f60 100644
+--- a/channels/audin/client/audin_main.c
++++ b/channels/audin/client/audin_main.c
+@@ -206,6 +206,7 @@ static UINT audin_process_formats(AUDIN_PLUGIN* audin, AUDIN_CHANNEL_CALLBACK* c
+ 	}
+ 
+ 	Stream_Seek_UINT32(s); /* cbSizeFormatsPacket */
++	audin->format = NULL;
+ 	callback->formats = audio_formats_new(NumFormats);
+ 
+ 	if (!callback->formats)
+@@ -280,6 +281,7 @@ out:
+ 
+ 	if (error != CHANNEL_RC_OK)
+ 	{
++		audin->format = NULL;
+ 		audio_formats_free(callback->formats, NumFormats);
+ 		callback->formats = NULL;
+ 	}

meta-oe/recipes-support/freerdp/freerdp3_3.4.0.bb

@@ -25,6 +25,7 @@ SRC_URI = "git://github.com/FreeRDP/FreeRDP.git;branch=master;protocol=https \
            file://CVE-2026-23948.patch \
            file://CVE-2026-24491.patch \
            file://CVE-2026-24675.patch \
+           file://CVE-2026-24676.patch \
            "
 
 S = "${WORKDIR}/git"