* [PATCH AUTOSEL 6.10 030/197] wifi: ath11k: fix array out-of-bound access in SoC stats
[not found] <20240925115823.1303019-1-sashal@kernel.org>
@ 2024-09-25 11:50 ` Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2024-09-25 11:50 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Karthikeyan Periyasamy, Kalle Valo, Sasha Levin, kvalo, jjohnson,
linux-wireless, ath11k
From: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
[ Upstream commit 69f253e46af98af17e3efa3e5dfa72fcb7d1983d ]
Currently, the ath11k_soc_dp_stats::hal_reo_error array is defined with a
maximum size of DP_REO_DST_RING_MAX. However, the ath11k_dp_process_rx()
function access ath11k_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 ath11k_dp_process_rx() to use the normal ring ID
directly instead of the SRNG ring ID to avoid out-of-bounds array access.
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-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/20240704070811.4186543-3-quic_periyasa@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath11k/dp_rx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index aabde24d87632..88c7a7289d06e 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -2697,7 +2697,7 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
if (unlikely(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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