tree 5bc75a644443607bf4298c8ab7c0c6ed66cce3b1
parent 71fbe98d304a4dd0608e9fd4c245a65eff16bcff
author Uttkarsh Aggarwal <quic_uaggarwa@quicinc.com> 1665571812 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> 1670397194 -0800

USB: Solving path traversal issue in USB HAL AppendNodeMapper

Currently the string comes from the HIDL interface and
attackers can access this HAL via HWBinder once escalated
they can cause this path traversal by sending any string
such as "../../../data/local/temp". In this patch, a condition
is added that looks specifically for '/' & '..' and returns a
empty string if it is found otherwise string will be append to
"/sys/class/typec/" to map the portName we receive from HIDL interface.

Change-Id: Id9c6cd0fc2360da5ffe31dbecc2bf4978b085b58