GSD-2022-1002328 ubifs: Fix read out-of-bounds in ubifs_wbuf_write_nolock()

ubifs: Fix read out-of-bounds in ubifswbufwritenolock This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.238 by commit...