6.8-stable review patch. If anyone has any objections, please let me know.
------------------
From: Karthikeyan Kathirvel <quic_kathirve@xxxxxxxxxxx>
[ Upstream commit e1bdff48a1bb4a4ac660c19c55a820968c48b3f2 ]
Currently, there is no terminator entry for ath12k_qmi_msg_handlers hence
facing below KASAN warning,
==================================================================
BUG: KASAN: global-out-of-bounds in qmi_invoke_handler+0xa4/0x148
Read of size 8 at addr ffffffd00a6428d8 by task kworker/u8:2/1273
CPU: 0 PID: 1273 Comm: kworker/u8:2 Not tainted 5.4.213 #0
Workqueue: qmi_msg_handler qmi_data_ready_work
Call trace:
dump_backtrace+0x0/0x20c
show_stack+0x14/0x1c
dump_stack+0xe0/0x138
print_address_description.isra.5+0x30/0x330
__kasan_report+0x16c/0x1bc
kasan_report+0xc/0x14
__asan_load8+0xa8/0xb0
qmi_invoke_handler+0xa4/0x148
qmi_handle_message+0x18c/0x1bc
qmi_data_ready_work+0x4ec/0x528
process_one_work+0x2c0/0x440
worker_thread+0x324/0x4b8
kthread+0x210/0x228
ret_from_fork+0x10/0x18
The address belongs to the variable:
ath12k_mac_mon_status_filter_default+0x4bd8/0xfffffffffffe2300 [ath12k]
[...]
==================================================================
Add a dummy terminator entry at the end to assist the qmi_invoke_handler()
in traversing up to the terminator entry without accessing an
out-of-boundary index.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Reviewed-by: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx>
Signed-off-by: Karthikeyan Kathirvel <quic_kathirve@xxxxxxxxxxx>
Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx>
Link: https://msgid.link/20240416080234.2882725-1-quic_kathirve@xxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/wireless/ath/ath12k/qmi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/wireless/ath/ath12k/qmi.c b/drivers/net/wireless/ath/ath12k/qmi.c
index 77a132f6bbd1b..b3440a5e38af0 100644
--- a/drivers/net/wireless/ath/ath12k/qmi.c
+++ b/drivers/net/wireless/ath/ath12k/qmi.c
@@ -2941,6 +2941,9 @@ static const struct qmi_msg_handler ath12k_qmi_msg_handlers[] = {
.decoded_size = sizeof(struct qmi_wlanfw_fw_ready_ind_msg_v01),
.fn = ath12k_qmi_msg_fw_ready_cb,
},
+
+ /* end of list */
+ {},
};
static int ath12k_qmi_ops_new_server(struct qmi_handle *qmi_hdl,
--
2.43.0
