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  • Hash : 3db1af1f
    Author : Patrick Steinhardt
    Date : 2018-03-08T12:36:46

    index: error out on unreasonable prefix-compressed path lengths
    
    When computing the complete path length from the encoded
    prefix-compressed path, we end up just allocating the complete path
    without ever checking what the encoded path length actually is. This can
    easily lead to a denial of service by just encoding an unreasonable long
    path name inside of the index. Git already enforces a maximum path
    length of 4096 bytes. As we also have that enforcement ready in some
    places, just make sure that the resulting path is smaller than
    GIT_PATH_MAX.
    
    Reported-by: Krishna Ram Prakash R <krp@gtux.in>
    Reported-by: Vivek Parikh <viv0411.parikh@gmail.com>