In the Linux kernel, the following vulnerability has been resolved: drm/msm/hdmi: Add missing check for alloc_ordered_workqueue Add check for the return value of alloc_ordered_workqueue as it may return NULL pointer and cause NULL pointer dereference in hdmi_hdcp.c and hdmi_hpd.c. Patchwork: https://patchwork.freedesktop.org/patch/517211/