CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's handling of sync entries during the emission of OA configuration, where a failure in the process can lead to memory leaks due to unhandled sync references. This can result in resource exhaustion and potentially impact system stability. Organizations using Linux systems, particularly those leveraging the Direct Rendering Manager (DRM) for graphics, should prioritize addressing this issue to prevent potential performance degradation or crashes.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: drm/xe/oa: Fix sync entry leak on OA config emit failure xe_oa_emit_oa_config() releases the sync entries and the syncs array only on its success path. When it fails before the point of no return (fence allocation, config buffer allocation or batch submission), it returns without touching stream->syncs. The stream open path handles such failures in the caller, but xe_oa_config_locked() propagates the error without any cleanup, so the syncs array and the fence references held by the parsed entries are leaked. The next config ioctl overwrites stream->syncs, making the memory unreachable for good. Clean up the parsed syncs when xe_oa_emit_oa_config() fails, matching the cleanup done by the stream open error path. (cherry picked from commit 8af97b3da2cfce04e6b457c6eb17ed3c1daf912b)