CVE-2026-43189

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> media: v4l2-async: Fix error handling on steps after finding a match<br /> <br /> Once an async connection is found to be matching with an fwnode, a<br /> sub-device may be registered (in case it wasn&amp;#39;t already), its bound<br /> operation is called, ancillary links are created, the async connection<br /> is added to the sub-device&amp;#39;s list of connections and removed from the<br /> global waiting connection list. Further on, the sub-device&amp;#39;s possible own<br /> notifier is searched for possible additional matches.<br /> <br /> Fix these specific issues:<br /> <br /> - If v4l2_async_match_notify() failed before the sub-notifier handling,<br /> the async connection was unbound and its entry removed from the<br /> sub-device&amp;#39;s async connection list. The latter part was also done in<br /> v4l2_async_match_notify().<br /> <br /> - The async connection&amp;#39;s sd field was only set after creating ancillary<br /> links in v4l2_async_match_notify(). It was however dereferenced in<br /> v4l2_async_unbind_subdev_one(), which was called on error path of<br /> v4l2_async_match_notify() failure.