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From: Neil Armstrong <neil.armstrong@linaro.org>
To: Nathan Chancellor <nathan@kernel.org>
Cc: patches@lists.linux.dev, dri-devel@lists.freedesktop.org,
	Kees Cook <keescook@chromium.org>,
	llvm@lists.linux.dev, linux-amlogic@lists.infradead.org,
	linux-kernel@vger.kernel.org, Tom Rix <trix@redhat.com>,
	Sami Tolvanen <samitolvanen@google.com>,
	Nick Desaulniers <ndesaulniers@google.com>
Subject: Re: [PATCH] drm/meson: Fix return type of meson_encoder_cvbs_mode_valid()
Date: Thu, 03 Nov 2022 09:41:40 +0100	[thread overview]
Message-ID: <166746490033.1047451.8509801800691914580.b4-ty@linaro.org> (raw)
In-Reply-To: <20221102155242.1927166-1-nathan@kernel.org>

Hi,

On Wed, 2 Nov 2022 08:52:42 -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:
> 
> [...]

Thanks, Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next)

[1/1] drm/meson: Fix return type of meson_encoder_cvbs_mode_valid()
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=6c4e4d35203301906afb53c6d1e1302d4c793c05

-- 
Neil

WARNING: multiple messages have this Message-ID (diff)
From: Neil Armstrong <neil.armstrong@linaro.org>
To: Nathan Chancellor <nathan@kernel.org>
Cc: Kees Cook <keescook@chromium.org>, Tom Rix <trix@redhat.com>,
	llvm@lists.linux.dev, Nick Desaulniers <ndesaulniers@google.com>,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	patches@lists.linux.dev, Sami Tolvanen <samitolvanen@google.com>,
	linux-amlogic@lists.infradead.org
Subject: Re: [PATCH] drm/meson: Fix return type of meson_encoder_cvbs_mode_valid()
Date: Thu, 03 Nov 2022 09:41:40 +0100	[thread overview]
Message-ID: <166746490033.1047451.8509801800691914580.b4-ty@linaro.org> (raw)
In-Reply-To: <20221102155242.1927166-1-nathan@kernel.org>

Hi,

On Wed, 2 Nov 2022 08:52:42 -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:
> 
> [...]

Thanks, Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next)

[1/1] drm/meson: Fix return type of meson_encoder_cvbs_mode_valid()
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=6c4e4d35203301906afb53c6d1e1302d4c793c05

-- 
Neil

WARNING: multiple messages have this Message-ID (diff)
From: Neil Armstrong <neil.armstrong@linaro.org>
To: Nathan Chancellor <nathan@kernel.org>
Cc: patches@lists.linux.dev, dri-devel@lists.freedesktop.org,
	Kees Cook <keescook@chromium.org>,
	llvm@lists.linux.dev, linux-amlogic@lists.infradead.org,
	linux-kernel@vger.kernel.org, Tom Rix <trix@redhat.com>,
	Sami Tolvanen <samitolvanen@google.com>,
	Nick Desaulniers <ndesaulniers@google.com>
Subject: Re: [PATCH] drm/meson: Fix return type of meson_encoder_cvbs_mode_valid()
Date: Thu, 03 Nov 2022 09:41:40 +0100	[thread overview]
Message-ID: <166746490033.1047451.8509801800691914580.b4-ty@linaro.org> (raw)
In-Reply-To: <20221102155242.1927166-1-nathan@kernel.org>

Hi,

On Wed, 2 Nov 2022 08:52:42 -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:
> 
> [...]

Thanks, Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next)

[1/1] drm/meson: Fix return type of meson_encoder_cvbs_mode_valid()
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=6c4e4d35203301906afb53c6d1e1302d4c793c05

-- 
Neil

_______________________________________________
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linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic

  parent reply	other threads:[~2022-11-03  8:41 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-02 15:52 [PATCH] drm/meson: Fix return type of meson_encoder_cvbs_mode_valid() Nathan Chancellor
2022-11-02 15:52 ` Nathan Chancellor
2022-11-02 15:52 ` Nathan Chancellor
2022-11-02 19:06 ` Kees Cook
2022-11-02 19:06   ` Kees Cook
2022-11-02 19:06   ` Kees Cook
2022-11-03  8:41 ` Neil Armstrong [this message]
2022-11-03  8:41   ` Neil Armstrong
2022-11-03  8:41   ` Neil Armstrong

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