From: Kees Cook <keescook@chromium.org>
To: nathan@kernel.org, alain.volmat@foss.st.com
Cc: Kees Cook <keescook@chromium.org>,
llvm@lists.linux.dev, trix@redhat.com, samitolvanen@google.com,
patches@lists.linux.dev, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org, ndesaulniers@google.com
Subject: Re: [PATCH] drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid()
Date: Fri, 18 Nov 2022 09:40:02 -0800 [thread overview]
Message-ID: <166879319847.2080862.11821072640113889089.b4-ty@chromium.org> (raw)
In-Reply-To: <20221102155623.3042869-1-nathan@kernel.org>
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
WARNING: multiple messages have this Message-ID (diff)
From: Kees Cook <keescook@chromium.org>
To: nathan@kernel.org, alain.volmat@foss.st.com
Cc: Kees Cook <keescook@chromium.org>,
trix@redhat.com, llvm@lists.linux.dev, ndesaulniers@google.com,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
patches@lists.linux.dev, samitolvanen@google.com
Subject: Re: [PATCH] drm/sti: Fix return type of sti_{dvo, hda, hdmi}_connector_mode_valid()
Date: Fri, 18 Nov 2022 09:40:02 -0800 [thread overview]
Message-ID: <166879319847.2080862.11821072640113889089.b4-ty@chromium.org> (raw)
In-Reply-To: <20221102155623.3042869-1-nathan@kernel.org>
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
next prev parent reply other threads:[~2022-11-18 17:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-02 15:56 [PATCH] drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid() Nathan Chancellor
2022-11-02 15:56 ` [PATCH] drm/sti: Fix return type of sti_{dvo, hda, hdmi}_connector_mode_valid() Nathan Chancellor
2022-11-02 19:06 ` [PATCH] drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid() Kees Cook
2022-11-02 19:06 ` Kees Cook
2022-11-14 22:03 ` Nathan Chancellor
2022-11-14 22:03 ` Nathan Chancellor
2022-11-17 23:19 ` Kees Cook
2022-11-17 23:19 ` Kees Cook
2022-11-18 17:40 ` Kees Cook [this message]
2022-11-18 17:40 ` [PATCH] drm/sti: Fix return type of sti_{dvo, hda, hdmi}_connector_mode_valid() Kees Cook
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