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Subject: Re: [PATCH] ath11k: Change max no of active probe SSID and BSSID to
 fw
 capability
From:   Kalle Valo <kvalo@kernel.org>
In-Reply-To: <20220329150221.21907-1-quic_kathirve@quicinc.com>
References: <20220329150221.21907-1-quic_kathirve@quicinc.com>
To:     Karthikeyan Kathirvel <quic_kathirve@quicinc.com>
Cc:     <ath11k@lists.infradead.org>, <linux-wireless@vger.kernel.org>,
        Karthikeyan Kathirvel <quic_kathirve@quicinc.com>
User-Agent: pwcli/0.1.0-git (https://github.com/kvalo/pwcli/) Python/3.7.3
Message-ID: <164914615451.12306.2945099051936753478.kvalo@kernel.org>
Date:   Tue,  5 Apr 2022 08:09:16 +0000 (UTC)
Precedence: bulk

Karthikeyan Kathirvel <quic_kathirve@quicinc.com> wrote:

> The maximum number of SSIDs in a for active probe requests is currently
> reported as 16 (WLAN_SCAN_PARAMS_MAX_SSID) when registering the driver.
> The scan_req_params structure only has the capacity to hold 10 SSIDs.
> This leads to a buffer overflow which can be triggered from
> wpa_supplicant in userspace. When copying the SSIDs into the
> scan_req_params structure in the ath11k_mac_op_hw_scan route, it can
> overwrite the extraie pointer.
> 
> Firmware supports 16 ssid * 4 bssid, for each ssid 4 bssid combo probe
> request will be sent, so totally 64 probe requests supported. So
> set both max ssid and bssid to 16 and 4 respectively. Remove the
> redundant macros of ssid and bssid.
> 
> Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01300-QCAHKSWPL_SILICONZ-1
> 
> Signed-off-by: Karthikeyan Kathirvel <quic_kathirve@quicinc.com>
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>

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

50dc9ce9f805 ath11k: Change max no of active probe SSID and BSSID to fw capability

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20220329150221.21907-1-quic_kathirve@quicinc.com/

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