linux-kernel - Re: [PATCH] wifi: ath11k: fix gtk offload status event locking

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Message-ID: <a13dd4f1-4058-4559-96f4-e110f7f4e16a@quicinc.com>
Date:   Thu, 19 Oct 2023 10:27:20 -0700
From:   Jeff Johnson <quic_jjohnson@...cinc.com>
To:     Johan Hovold <johan+linaro@...nel.org>,
        Kalle Valo <kvalo@...nel.org>
CC:     <ath11k@...ts.infradead.org>, <linux-wireless@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <stable@...r.kernel.org>,
        Carl Huang <quic_cjhuang@...cinc.com>
Subject: Re: [PATCH] wifi: ath11k: fix gtk offload status event locking

On 10/19/2023 8:53 AM, Johan Hovold wrote:
> The ath11k active pdevs are protected by RCU but the gtk offload status
> event handling code calling ath11k_mac_get_arvif_by_vdev_id() was not
> marked as a read-side critical section.
> 
> Mark the code in question as an RCU read-side critical section to avoid
> any potential use-after-free issues.
> 
> Fixes: a16d9b50cfba ("ath11k: support GTK rekey offload")
> Cc: stable@...r.kernel.org      # 5.18
> Cc: Carl Huang <quic_cjhuang@...cinc.com>
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
Acked-by: Jeff Johnson <quic_jjohnson@...cinc.com>