From: Pei Xiao <xiaopei01@kylinos.cn>

The of_device_id table is expected to be NULL-terminated. Without the
sentinel, the traversal of the array can lead to out-of-bound access,
causing undefined behavior.

This adds the missing sentinel to the qcom_cpufreq_ipq806x_match_list
array.

Fixes: 58f5d39d5ed8 ("cpufreq: qcom-nvmem: add compatible fallback for ipq806x for no SMEM")
Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
---
 drivers/cpufreq/qcom-cpufreq-nvmem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c b/drivers/cpufreq/qcom-cpufreq-nvmem.c
index 81e16b5a0245..66d3169b2331 100644
--- a/drivers/cpufreq/qcom-cpufreq-nvmem.c
+++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c
@@ -263,6 +263,7 @@ static const struct of_device_id qcom_cpufreq_ipq806x_match_list[] __maybe_unuse
 	{ .compatible = "qcom,ipq8066", .data = (const void *)QCOM_ID_IPQ8066 },
 	{ .compatible = "qcom,ipq8068", .data = (const void *)QCOM_ID_IPQ8068 },
 	{ .compatible = "qcom,ipq8069", .data = (const void *)QCOM_ID_IPQ8069 },
+	{ /* sentinel */ },
 };
 
 static int qcom_cpufreq_ipq8064_name_version(struct device *cpu_dev,
-- 
2.25.1

On 12/5/25 7:38 AM, xiaopeitux@foxmail.com wrote:
> From: Pei Xiao <xiaopei01@kylinos.cn>
> 
> The of_device_id table is expected to be NULL-terminated. Without the
> sentinel, the traversal of the array can lead to out-of-bound access,
> causing undefined behavior.
> 
> This adds the missing sentinel to the qcom_cpufreq_ipq806x_match_list
> array.
> 
> Fixes: 58f5d39d5ed8 ("cpufreq: qcom-nvmem: add compatible fallback for ipq806x for no SMEM")
> Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
> ---

ouch, thanks for catching that!

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad