From 1822707c7e7394ce8c7572f2fe890763a307f499 Mon Sep 17 00:00:00 2001
From: Vaxry <vaxry@vaxry.net>
Date: Sat, 12 Oct 2024 17:56:46 +0100
Subject: [PATCH] drm-syncobj: fix crash on missing timelines

fixes #8092
---
 src/protocols/DRMSyncobj.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/protocols/DRMSyncobj.cpp b/src/protocols/DRMSyncobj.cpp
index a7f242ee..1da4baaf 100644
--- a/src/protocols/DRMSyncobj.cpp
+++ b/src/protocols/DRMSyncobj.cpp
@@ -55,6 +55,9 @@ CDRMSyncobjSurfaceResource::CDRMSyncobjSurfaceResource(SP<CWpLinuxDrmSyncobjSurf
             return;
         }
 
+        if (!pending.acquireTimeline)
+            return;
+
         if (pending.acquireTimeline && pending.releaseTimeline && pending.acquireTimeline == pending.releaseTimeline) {
             if (pending.acquirePoint >= pending.releasePoint) {
                 resource->error(WP_LINUX_DRM_SYNCOBJ_SURFACE_V1_ERROR_CONFLICTING_POINTS, "Acquire and release points are on the same timeline, and acquire >= release");