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Subject: Re: [PATCH] wifi: ath12k: Avoid NULL pointer access during management
 transmit cleanup
From:   Kalle Valo <kvalo@kernel.org>
In-Reply-To: <20230518071046.14337-1-quic_bselvara@quicinc.com>
References: <20230518071046.14337-1-quic_bselvara@quicinc.com>
To:     Balamurugan S <quic_bselvara@quicinc.com>
Cc:     <ath12k@lists.infradead.org>, <linux-wireless@vger.kernel.org>,
        Balamurugan S <quic_bselvara@quicinc.com>
User-Agent: pwcli/0.1.1-git (https://github.com/kvalo/pwcli/) Python/3.7.3
Message-ID: <168631751914.7235.13826635338122633209.kvalo@kernel.org>
Date:   Fri,  9 Jun 2023 13:32:01 +0000 (UTC)
Precedence: bulk

Balamurugan S <quic_bselvara@quicinc.com> wrote:

> Currently 'ar' reference is not added in skb_cb.
> Though this is generally not used during transmit completion
> callbacks, on interface removal the remaining idr cleanup callback
> uses the ar pointer from skb_cb from management txmgmt_idr. Hence fill them
> during transmit call for proper usage to avoid NULL pointer dereference.
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
> 
> Signed-off-by: Balamurugan S <quic_bselvara@quicinc.com>
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>

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

054b5580a36e wifi: ath12k: Avoid NULL pointer access during management transmit cleanup

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20230518071046.14337-1-quic_bselvara@quicinc.com/

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