Date: Thu, 22 Jun 2017 12:19:35 +0200 From: Florian Weimer <fweimer@...hat.com> To: oss-security@...ts.openwall.com, Daniel Micay <danielmicay@...il.com>, Qualys Security Advisory <qsa@...lys.com> Subject: Re: Qualys Security Advisory - The Stack Clash On 06/22/2017 08:00 AM, Daniel Micay wrote: > Is it planned to have glibc use a larger 1M gap for secondary stacks > rather than a single guard page? That would be a *lot* easier than it > was to set it up for the main thread stack. It follows the main thread > stack rlimit as a guideline so it seems to make sense to use the same > guard region size too. If it ends up exposed as a sysctl, it could read > the current value from there. On the glibc side, we are waiting for the kernel interface for the configurable gap size to materialize upstream. Thanks, Florian
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