* [PATCH AUTOSEL 6.6 027/139] wifi: ath12k: fix array out-of-bound access in SoC stats
[not found] <20240925121137.1307574-1-sashal@kernel.org>
@ 2024-09-25 12:07 ` Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2024-09-25 12:07 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Karthikeyan Periyasamy, Kalle Valo, Sasha Levin, kvalo, jjohnson,
linux-wireless, ath12k
From: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
[ Upstream commit e106b7ad13c1d246adaa57df73edb8f8b8acb240 ]
Currently, the ath12k_soc_dp_stats::hal_reo_error array is defined with a
maximum size of DP_REO_DST_RING_MAX. However, the ath12k_dp_rx_process()
function access ath12k_soc_dp_stats::hal_reo_error using the REO
destination SRNG ring ID, which is incorrect. SRNG ring ID differ from
normal ring ID, and this usage leads to out-of-bounds array access. To
fix this issue, modify ath12k_dp_rx_process() to use the normal ring ID
directly instead of the SRNG ring ID to avoid out-of-bounds array access.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240704070811.4186543-2-quic_periyasa@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath12k/dp_rx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath12k/dp_rx.c b/drivers/net/wireless/ath/ath12k/dp_rx.c
index d9bc07844fb71..70ad035acac75 100644
--- a/drivers/net/wireless/ath/ath12k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath12k/dp_rx.c
@@ -2670,7 +2670,7 @@ int ath12k_dp_rx_process(struct ath12k_base *ab, int ring_id,
if (push_reason !=
HAL_REO_DEST_RING_PUSH_REASON_ROUTING_INSTRUCTION) {
dev_kfree_skb_any(msdu);
- ab->soc_stats.hal_reo_error[dp->reo_dst_ring[ring_id].ring_id]++;
+ ab->soc_stats.hal_reo_error[ring_id]++;
continue;
}
--
2.43.0
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