ubifs: Fix read out-of-bounds in ubifswbufwrite_nolock()
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 v5.4.189 by commit b80ccbec0e4804436c382d7dd60e943c386ed83a, it was introduced in version v2.6.27 by commit 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d. For more details please see the references link.