bus: mhi: ep: Update read pointer only after buffer is written

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CVE-2021-38449

Some API functions permit by-design writing or copying data into a given buffer. Since the client controls these parameters, an attacker could rewrite the memory in any location of the affected product...

ALPINE-CVE-2018-12115

In all versions of Node.js prior to 6.14.4, 8.11.4 and 10.9.0 when used with UCS-2 encoding recognized by Node.js under the names 'ucs2', 'ucs-2', 'utf16le' and 'utf-16le', Bufferwrite can be abused to write outside of the bounds of a single Buffer. Writes that start from the second-to-last...