From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Kees Cook <kees@kernel.org>, Bartosz Golaszewski <brgl@kernel.org>
Cc: Kees Cook <kees+treewide@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Linus Walleij <linusw@kernel.org>,
linux-arm-msm@vger.kernel.org, linux-gpio@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH] pinctrl: qcom: tlmm-test: Add const to reg_names allocation type
Date: Fri, 18 Sep 2026 10:00:57 +0200 [thread overview]
Message-ID: <8d32cbea-fd17-4f3a-aac1-6f44a50205e7@oss.qualcomm.com> (raw)
In-Reply-To: <20260917211009.i.312-kees@kernel.org>
On 9/17/26 11:10 PM, Kees Cook wrote:
> From: Kees Cook <kees+treewide@kernel.org>
>
> In preparation for converting the kmalloc family of allocators to the
> type-aware kmalloc_obj family, we need to make sure that the returned
> type from the allocation matches the type of the variable being
> assigned. (The kmalloc family returns "void *", which can be implicitly
> cast to any pointer type.)
>
> The assigned type is "const char **", but the converted allocation type
> would be "char **", which is the same type without the const qualifier.
> As there is no general way to safely add const qualifiers, take the size
> from the assignment target instead. No change in allocation size
> results.
>
> Build tested ARCH=x86_64 allmodconfig with GCC 16.2.0:
> drivers/pinctrl/qcom/tlmm-test.o
>
> Assisted-by: LLM coccinelle
> Signed-off-by: Kees Cook <kees+treewide@kernel.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
prev parent reply other threads:[~2026-09-18 8:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 21:10 Kees Cook
2026-09-18 8:00 ` Konrad Dybcio [this message]
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