linux-kernel - Re: [PATCH] drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode

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] [day] [month] [year] [list]

Message-Id: <166879319847.2080862.11821072640113889089.b4-ty@chromium.org>
Date:   Fri, 18 Nov 2022 09:40:02 -0800
From:   Kees Cook <keescook@...omium.org>
To:     nathan@...nel.org, alain.volmat@...s.st.com
Cc:     Kees Cook <keescook@...omium.org>, llvm@...ts.linux.dev,
        trix@...hat.com, samitolvanen@...gle.com, patches@...ts.linux.dev,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        ndesaulniers@...gle.com
Subject: Re: [PATCH] drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid()

On Wed, 2 Nov 2022 08:56:23 -0700, Nathan Chancellor wrote:
> With clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG),
> indirect call targets are validated against the expected function
> pointer prototype to make sure the call target is valid to help mitigate
> ROP attacks. If they are not identical, there is a failure at run time,
> which manifests as either a kernel panic or thread getting killed. A
> proposed warning in clang aims to catch these at compile time, which
> reveals:
> 
> [...]

Applied to for-next/hardening, thanks!

[1/1] drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid()
      https://git.kernel.org/kees/c/0ad811cc08a9

-- 
Kees Cook