[PATCH 2/3] wifi: ath12k: fix invalid memory access while processing fragmented packets

P Praneesh quic_ppranees at quicinc.com
Mon May 20 00:00:44 PDT 2024


The monitor ring and the reo reinject ring share the same ring mask index.
When the driver receives an interrupt for the reo reinject ring, the
monitor ring is also processed, leading to invalid memory access. Since
monitor support is not yet enabled in ath12k, the ring mask for the monitor
ring should be removed.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00209-QCAHKSWPL_SILICONZ-1

Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: P Praneesh <quic_ppranees at quicinc.com>
---
 drivers/net/wireless/ath/ath12k/hw.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/hw.c b/drivers/net/wireless/ath/ath12k/hw.c
index 06f443216488..ffe06ebdc992 100644
--- a/drivers/net/wireless/ath/ath12k/hw.c
+++ b/drivers/net/wireless/ath/ath12k/hw.c
@@ -544,9 +544,6 @@ static const struct ath12k_hw_ring_mask ath12k_hw_ring_mask_qcn9274 = {
 	},
 	.rx_mon_dest = {
 		0, 0, 0,
-		ATH12K_RX_MON_RING_MASK_0,
-		ATH12K_RX_MON_RING_MASK_1,
-		ATH12K_RX_MON_RING_MASK_2,
 	},
 	.rx = {
 		0, 0, 0, 0,
@@ -572,8 +569,7 @@ static const struct ath12k_hw_ring_mask ath12k_hw_ring_mask_qcn9274 = {
 		ATH12K_HOST2RXDMA_RING_MASK_0,
 	},
 	.tx_mon_dest = {
-		ATH12K_TX_MON_RING_MASK_0,
-		ATH12K_TX_MON_RING_MASK_1,
+		0, 0, 0,
 	},
 };
 
-- 
2.25.1




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