Date: Mon, 22 Aug 2011 13:41:38 +0400 From: Solar Designer <solar@...nwall.com> To: kernel-hardening@...ts.openwall.com Subject: Re: GNU_STACK policy problem Vasiliy, On Mon, Aug 22, 2011 at 01:34:05PM +0400, Vasiliy Kulikov wrote: > Looking into ELF documentation: > > In MIPS, SPARC no AT_FLAGS bits are used currently. And "bits under the > 0xff000000 mask are reserved for system semantics." > > In IA-32 and PPC no bits are used. No "system" flags are mentioned. > > > I didn't find any definition of "system semantics", I guess it means any > non-standard usage on local system. Probably we should use these bits. Yes, using some of those reserved bits (even if reserved on other archs only) makes sense to me. Your changes look good to me - at least good enough to bring a discussion up on LKML if you choose to do so despite of the NAK expectation. As discussed off-list, I think it's OK to try. Thanks, Alexander
Powered by blists - more mailing lists
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.