Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: Re: [PATCH v2] ath10k: reset pointer after memory free to avoid
 potential
 use-after-free
From:   Kalle Valo <kvalo@kernel.org>
In-Reply-To: <20220505092248.787-1-quic_wgong@quicinc.com>
References: <20220505092248.787-1-quic_wgong@quicinc.com>
To:     Wen Gong <quic_wgong@quicinc.com>
Cc:     <ath11k@lists.infradead.org>, <linux-wireless@vger.kernel.org>,
        <quic_wgong@quicinc.com>
User-Agent: pwcli/0.1.1-git (https://github.com/kvalo/pwcli/) Python/3.7.3
Message-ID: <166383109059.28267.2524811686657433761.kvalo@kernel.org>
Date:   Thu, 22 Sep 2022 07:18:12 +0000 (UTC)
Precedence: bulk

Wen Gong <quic_wgong@quicinc.com> wrote:

> When running suspend test, kernel crash happened in ath10k, and it is
> fixed by commit b72a4aff947b ("ath10k: skip ath10k_halt during suspend
> for driver state RESTARTING").
> 
> Currently the crash is fixed, but as a common code style, it is better
> to set the pointer to NULL after memory is free.
> 
> This is to address the code style and it will avoid potential bug of
> use-after-free.
> 
> Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1
> Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>

Patch applied to ath-next branch of ath.git, thanks.

1e1cb8e0b73e wifi: ath10k: reset pointer after memory free to avoid potential use-after-free

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20220505092248.787-1-quic_wgong@quicinc.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches