
qdf_nbuf_free_debug() does a hashtable lookup for nbuf metadata without grabbing the appropriate spinlock. This naturally leads to a variety of issues. Acquire the nbuf metadata lock while accessing the metadata hashtable in qdf_nbuf_free_debug(). Change-Id: I058b00abcf0162c764fc9ad5011be341a07f2b9d CRs-Fixed: 2288522