linux-kernel - Re: [PATCH] soc: qcom: qmi_encdec: Restrict string length in decode

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Message-ID: <4377ba5a-deab-1f24-c785-c90965991af1@linaro.org>
Date:   Mon, 31 Jul 2023 11:18:21 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Praveenkumar I <quic_ipkumar@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     quic_varada@...cinc.com, quic_clew@...cinc.com
Subject: Re: [PATCH] soc: qcom: qmi_encdec: Restrict string length in decode

On 31.07.2023 11:14, Praveenkumar I wrote:
> The QMI TLV value for strings in a lot of qmi element info structures
> account for null terminated strings with MAX_LEN + 1. If a string is
> actually MAX_LEN + 1 length, this will cause an out of bounds access
> when the NULL character is appended in decoding.
> 
> Signed-off-by: Chris Lew <quic_clew@...cinc.com>
> Signed-off-by: Praveenkumar I <quic_ipkumar@...cinc.com>
> ---
Fixes + Cc: stable?

Konrad