From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Abel Vesa <abelvesa@kernel.org>,
Andy Gross <agross@codeaurora.org>,
Deepak Kumar Singh <deepak.singh@oss.qualcomm.com>,
Chris Lew <chris.lew@oss.qualcomm.com>,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Sashiko <sashiko-bot@kernel.org>, stable@vger.kernel.org
Subject: Re: [PATCH 3/3] soc: qcom: smp2p: Fix possible out-of-bounds read with too many inbound entries
Date: Mon, 2 Nov 2026 11:31:11 +0100 [thread overview]
Message-ID: <01e57cde-a18e-481a-8b4a-e38d467b39c6@oss.qualcomm.com> (raw)
In-Reply-To: <20261101202404.156522-6-krzysztof.kozlowski@oss.qualcomm.com>
On 11/1/26 9:24 PM, Krzysztof Kozlowski wrote:
> The inbound SMEM item is populated by the remote processor, so its
> contents, including number of entries, should be validated by the
> kernel. Number of inbound entries is directly used when iterating over
> inbound data structure, so if it is higher than actual size of data,
> kernel would read memory out-of-bounds.
>
> Reported-by: Sashiko <sashiko-bot@kernel.org>
> Closes: https://sashiko.dev/#/bug/linux-b79427c9-5d22-4b48-8ee7-1d7808101e52
> Fixes: 8a9a7b9d14c2 ("soc: qcom: smp2p: Add irqchip state support")
> Fixes: 50e99641413e ("soc: qcom: smp2p: Qualcomm Shared Memory Point to Point")
> Cc: stable@vger.kernel.org
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
next prev parent reply other threads:[~2026-11-02 10:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-01 20:24 [PATCH 1/3] soc: qcom: smp2p: Fix use-after-free of irq domain on removal Krzysztof Kozlowski
2026-11-01 20:24 ` [PATCH 2/3] soc: qcom: smp2p: Fix out-of-bounds with incorrect DTB of too many outbound entries Krzysztof Kozlowski
2026-11-01 20:24 ` [PATCH 3/3] soc: qcom: smp2p: Fix possible out-of-bounds read with too many inbound entries Krzysztof Kozlowski
2026-11-02 10:31 ` Konrad Dybcio [this message]
2026-11-02 10:28 ` [PATCH 1/3] soc: qcom: smp2p: Fix use-after-free of irq domain on removal Konrad Dybcio
2026-11-02 10:37 ` Krzysztof Kozlowski
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