Fwd: [PATCH v5 00/22] Some rtld-audit fixes

[Adhemerval Zanella]

On 23/11/2021 11:02, Florian Weimer wrote:
> * Adhemerval Zanella:
> 
>> In fact I think rather than using the argv[0], since it passing the
>> executable path is just a convention; I think it would be better to
>> use AT_EXECFN.  On recent kernel it is always passed to userland and
>> kernel should be responsible to hide any filesystem information if it
>> is required.
> 
> It's still a relative path to an unknown directory, I think.  I expect
> (but have not checked) that it is the pathname argument to execveat,
> which may not be meaningful to the new process image.

Yes, but it better than _dl_argv[0] and/or an empty string.  Without 
proper kernel support we can not reliable get the path, in fact the 
kernel might in fact hides it on purpose.