Re: [PATCH] Add a /proc/self/exedir link

[Jan Engelhardt]

>>> It leaks information about the parts of the pathname below the
>>> directory that you otherwise would not be able to see.  E.g. if
>>> I have $HOME/top-secret-projects/secret-code-name1/binary
>>> where the top-secret-projects directory isn't readable by you,
>>> then you may find out secret-code-name1 by reading the
>>> /proc/{pid}/exedir symlink.
>>
>> But we already have /proc/{pid}/exe which is a symlink to the
>> executable, thus exposing all the directory names already.

In which case the administrator of the machine should make /proc/xyz
directories mode 0700. (Patches are floating around.)


Jan Engelhardt
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