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Re: kern/56673: don't allow execve with NULL argv
The following reply was made to PR kern/56673; it has been noted by GNATS.
From: Martin Husemann <martin%duskware.de@localhost>
Subject: Re: kern/56673: don't allow execve with NULL argv
Date: Wed, 26 Jan 2022 17:08:53 +0100
On Wed, Jan 26, 2022 at 03:55:01PM +0000, jschauma%netmeister.org@localhost wrote:
> I'd suggest to fail if the argv is NULL.
I'm ambivalent here. Posix does allow it and the behaviour is well defined
(if I didn't miss something).
And setuid programs with stupid casts to unsigned (probably just added
there to silence the compiler warning) are dangerous - and this is not
a kernel issue.
On the other hand there is probably no reasonable code out there that would
use this, so rejecting it might be ok.
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