Re: [PATCH 2/2] wifi: ath11k: fix dfs radar event locking

From: Jeff Johnson
Date: Thu Oct 19 2023 - 11:08:23 EST


On 10/19/2023 3:42 AM, Johan Hovold wrote:
The ath11k active pdevs are protected by RCU but the DFS radar event
handling code calling ath11k_mac_get_ar_by_pdev_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: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Cc: stable@xxxxxxxxxxxxxxx # 5.6
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Acked-by: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx>