Re: [PATCH] Fix system() behaviour when parameter is NULL

[der Mouse <mouse%Rodents-Montreal.ORG@localhost>]

>> Well...strictly speaking, it works, but opens up a classic
>> test-vs-use race if you then proceed to count on the result to mean
>> that it's safe to use the pathname you tested.
> I think this is what I said.

Mmm.  I'd say more that it's an elaboration of what you said.

>> If system()'s caller is set-id, I'm not convinced it will give the
>> answer we want if the ruid and euid have different access rights on
>> _PATH_BSHELL.
> A different question entirely, and you may be right -- I was simply
> answer the question about whether access() is a security hole per se.

True; this was really returning to the patch that started it all,
rather than continuing down the subthread most of the message was.

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