Johan Hovold johan+linaro@kernel.org wrote:
The ath12k active pdevs are protected by RCU but the DFS-radar and temperature event handling code calling ath12k_mac_get_ar_by_pdev_id() was not marked as a read-side critical section.
Mark the code in question as RCU read-side critical sections to avoid any potential use-after-free issues.
Note that the temperature event handler looks like a place holder currently but would still trigger an RCU lockdep splat.
Compile tested only.
Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices") Cc: stable@vger.kernel.org # v6.2 Signed-off-by: Johan Hovold johan+linaro@kernel.org Acked-by: Jeff Johnson quic_jjohnson@quicinc.com Signed-off-by: Kalle Valo quic_kvalo@quicinc.com
2 patches applied to ath-next branch of ath.git, thanks.
69bd216e0493 wifi: ath12k: fix dfs-radar and temperature event locking 6afc57ea315e wifi: ath12k: fix htt mlo-offset event locking