power: check frequencies count before filling array

[dpdk.git] / lib / power / power_cppc_cpufreq.c

diff --git a/lib/power/power_cppc_cpufreq.c b/lib/power/power_cppc_cpufreq.c
index e92973a..6afd310 100644 (file)
--- a/lib/power/power_cppc_cpufreq.c
+++ b/lib/power/power_cppc_cpufreq.c
@@ -246,6 +246,11 @@ power_get_available_freqs(struct cppc_power_info *pi)
                        pi->nominal_perf * UNIT_DIFF : pi->nominal_perf;
        num_freqs = (nominal_perf - scaling_min_freq) / BUS_FREQ + 1 +
                pi->turbo_available;
+       if (num_freqs >= RTE_MAX_LCORE_FREQS) {
+               RTE_LOG(ERR, POWER, "Too many available frequencies: %d\n",
+                               num_freqs);
+               goto out;
+       }
 
        /* Generate the freq bucket array. */
        for (i = 0, pi->nb_freqs = 0; i < num_freqs; i++) {