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

From: Kalle Valo
Date: Sun Jan 26 2020 - 05:48:38 EST


Colin King <colin.king@xxxxxxxxxxxxx> 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@xxxxxxxxxxxxx>
> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>

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

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

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

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