linux-kernel - Re: [PATCH][next] ath11k: avoid null pointer dereference when pointer band is null

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Date:   Sun, 26 Jan 2020 10:48:34 +0000 (UTC)
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Colin King <colin.king@...onical.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        John Crispin <john@...ozen.org>,
        Shashidhar Lakkavalli <slakkavalli@...to.com>,
        ath11k@...ts.infradead.org, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] ath11k: avoid null pointer dereference when pointer
 band is null

Colin King <colin.king@...onical.com> wrote:

> In the unlikely event that cap->supported_bands has neither
> WMI_HOST_WLAN_2G_CAP set or WMI_HOST_WLAN_5G_CAP set then pointer
> band is null and a null dereference occurs when assigning
> band->n_iftype_data.  Move the assignment to the if blocks to
> avoid this.  Cleans up static analysis warnings.
> 
> Addresses-Coverity: ("Explicit null dereference")
> Fixes: 9f056ed8ee01 ("ath11k: add HE support")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> Signed-off-by: Kalle Valo <kvalo@...eaurora.org>

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

3b4516838eaa ath11k: avoid null pointer dereference when pointer band is null

-- 
https://patchwork.kernel.org/patch/11328755/

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