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Lu" , Ingo Molnar , "Edgecombe, Rick P" , "H. Peter Anvin" , Linus Torvalds , Andy Lutomirski , x86@kernel.org Subject: Re: [tip: x86/shstk] x86/shstk: Enable shadow stacks for x32 Message-ID: <20240322164912.GAZf22iBdqdkIFcrsl@fat_crate.local> References: <20240315140433.1966543-1-hjl.tools@gmail.com> <171110519880.10875.7663158781394877164.tip-bot2@tip-bot2> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <171110519880.10875.7663158781394877164.tip-bot2@tip-bot2> On Fri, Mar 22, 2024 at 10:59:58AM -0000, tip-bot2 for H.J. Lu wrote: > The following commit has been merged into the x86/shstk branch of tip: > > Commit-ID: 2883f01ec37dd8668e7222dfdb5980c86fdfe277 > Gitweb: https://git.kernel.org/tip/2883f01ec37dd8668e7222dfdb5980c86fdfe277 > Author: H.J. Lu > AuthorDate: Fri, 15 Mar 2024 07:04:33 -07:00 > Committer: Ingo Molnar > CommitterDate: Fri, 22 Mar 2024 10:17:11 +01:00 > > x86/shstk: Enable shadow stacks for x32 > > 1. Add shadow stack support to x32 signal. > 2. Use the 64-bit map_shadow_stack syscall for x32. > 3. Set up shadow stack for x32. Why are we still diddling with x32 and not patching it out instead? https://lore.kernel.org/all/CALCETrXoRAibsbWa9nfbDrt0iEuebMnCMhSFg-d9W-J2g8mDjw@mail.gmail.com/ -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette