Re: Dumpable tasks and ownership of /proc/*/fd

[Bodo Eggert]

Eric W. Biederman <ebiederm@xxxxxxxxxxxx> wrote:

> Speaking of things why does the *at() emulation need to touch
> /proc/self/fd/*?  I may be completely dense but if the practical
> justification for allowing access to /proc/self/fd/ is that we
> already have access then we shouldn't need /proc/self/fd.
> 
> I suspect this a matter of convenience where you are prepending
> /proc/self/fd/xxx/ to the path before you open it instead of calling
> fchdir openat() and the doing fchdir back.  Have I properly guessed
> how the *at() emulation works?

Think about threads or siglongjmp(sp?).
-- 
Ich danke GMX dafür, die Verwendung meiner Adressen mittels per SPF
verbreiteten Lügen zu sabotieren.
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