cpupower: Fix sscanf robustness in cpufreq-set
The cpufreq-set tool has a missing length check. This is basically just correctness but still should get fixed. One of a set of sscanf problems reported by Jackie Chang Signed-off-by: Alan Cox <alan@linux.intel.com> [rjw: Subject] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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@ -257,7 +257,7 @@ int cmd_freq_set(int argc, char **argv)
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print_unknown_arg();
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return -EINVAL;
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}
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if ((sscanf(optarg, "%s", gov)) != 1) {
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if ((sscanf(optarg, "%19s", gov)) != 1) {
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print_unknown_arg();
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return -EINVAL;
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}
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