linux-kernel - Re: [PATCH v11 5/5] arm64: Create a list of SYM_CODE functions, check return PC against list

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <YZ+mNXhavXt/mNZ3@sirena.org.uk>
Date:   Thu, 25 Nov 2021 15:05:25 +0000
From:   Mark Brown <broonie@...nel.org>
To:     madvenka@...ux.microsoft.com
Cc:     mark.rutland@....com, jpoimboe@...hat.com, ardb@...nel.org,
        nobuta.keiya@...itsu.com, sjitindarsingh@...il.com,
        catalin.marinas@....com, will@...nel.org, jmorris@...ei.org,
        linux-arm-kernel@...ts.infradead.org,
        live-patching@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v11 5/5] arm64: Create a list of SYM_CODE functions,
 check return PC against list

On Tue, Nov 23, 2021 at 01:37:23PM -0600, madvenka@...ux.microsoft.com wrote:
> From: "Madhavan T. Venkataraman" <madvenka@...ux.microsoft.com>
> 
> SYM_CODE functions don't follow the usual calling conventions. Check if the
> return PC in a stack frame falls in any of these. If it does, consider the
> stack trace unreliable.

Reviewed-by: Mark Brown <broonie@...nel.org>

Download attachment "signature.asc" of type "application/pgp-signature" (489 bytes)