From: Mark Brown <email@example.com> To: Catalin Marinas <firstname.lastname@example.org> Cc: Dave Martin <Dave.Martin@arm.com>, email@example.com, firstname.lastname@example.org, Szabolcs Nagy <email@example.com>, Jeremy Linton <firstname.lastname@example.org>, Will Deacon <email@example.com>, firstname.lastname@example.org Subject: Re: [PATCH v1 2/2] arm64: Enable BTI for main executable as well as the interpreter Date: Tue, 8 Jun 2021 12:33:18 +0100 [thread overview] Message-ID: <20210608113318.GA4200@sirena.org.uk> (raw) In-Reply-To: <20210607181212.GD17957@arm.com> [-- Attachment #1.1: Type: text/plain, Size: 773 bytes --] On Mon, Jun 07, 2021 at 07:12:13PM +0100, Catalin Marinas wrote: > I don't think we can document all the filters that can be added on top > various syscalls, so I'd leave it undocumented (or part of the systemd > documentation). It was a user space program (systemd) breaking another > user space program (well, anything with a new enough glibc). The kernel > ABI was still valid when /sbin/init started ;). Indeed. I think from a kernel point of view the main thing is to look at why userspace feels the need to do things like this and see if there's anything we can improve or do better with in future APIs, part of the original discussion here was figuring out that there's not really any other reasonable options for userspace to implement this check at the minute. [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 488 bytes --] [-- Attachment #2: Type: text/plain, Size: 176 bytes --] _______________________________________________ linux-arm-kernel mailing list email@example.com http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-06-08 11:52 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-05-21 14:46 [PATCH v1 0/2] arm64: Enable BTI for the " Mark Brown 2021-05-21 14:46 ` [PATCH v1 1/2] elf: Allow architectures to parse properties on the main executable Mark Brown 2021-06-03 15:40 ` Dave Martin 2021-06-03 18:52 ` Mark Brown 2021-05-21 14:46 ` [PATCH v1 2/2] arm64: Enable BTI for main executable as well as the interpreter Mark Brown 2021-06-03 15:40 ` Dave Martin 2021-06-03 16:51 ` Mark Brown 2021-06-03 18:04 ` Catalin Marinas 2021-06-07 11:25 ` Dave Martin 2021-06-07 18:12 ` Catalin Marinas 2021-06-08 11:33 ` Mark Brown [this message] 2021-06-08 15:19 ` Dave Martin 2021-06-08 15:42 ` Jeremy Linton 2021-06-10 10:33 ` Dave Martin
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