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Open Source and information security mailing list archives
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Message-ID: <20100623191007.GD15787@basil.fritz.box> Date: Wed, 23 Jun 2010 21:10:07 +0200 From: Andi Kleen <andi@...stfloor.org> To: Alan Cox <alan@...rguk.ukuu.org.uk> Cc: Andi Kleen <andi@...stfloor.org>, Kees Cook <kees.cook@...onical.com>, linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org Subject: Re: [PATCH v2] security: Yama LSM On Wed, Jun 23, 2010 at 04:59:36PM +0100, Alan Cox wrote: > > > I actually think this is a flaw in get_task_comm. (Though actually it's > > > the fault of terminals if they process dangerous escape sequences. Worst > > > case tends to just be confusing output, but that's not important -- > > > nothing should spew non-printables regardless.) Would a patch to > > > get_task_comm be accepted to replace non-printables with "?" or something > > > when filling the buffer? > > > > Probably makes sense, although you might annoy someone who wants Kanji > > process names in UTF-8 or similar. > > The task name is irrelevant, user controlled information. It's not > really ideal for use in security logging. Yes but the pid only is normally completely useless, because nobody knows afterwards what some old pid was. -Andi -- ak@...ux.intel.com -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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