wifi: ath12k: fix array out-of-bound access in SoC stats
authorKarthikeyan Periyasamy <quic_periyasa@quicinc.com>
Thu, 4 Jul 2024 07:08:10 +0000 (12:38 +0530)
committerKalle Valo <quic_kvalo@quicinc.com>
Wed, 10 Jul 2024 16:28:26 +0000 (19:28 +0300)
commite106b7ad13c1d246adaa57df73edb8f8b8acb240
tree1d5e7a77627ba17fe1ed5474e3061631dcd6b100
parent177b49dbf9c1d8f9f25a22ffafa416fc2c8aa6a3
wifi: ath12k: fix array out-of-bound access in SoC stats

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
drivers/net/wireless/ath/ath12k/dp_rx.c