diff options
| author | Takashi Iwai <tiwai@suse.de> | 2020-03-11 10:27:18 +0100 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2020-03-23 15:20:47 +0100 |
| commit | f21431f2de33b1bb99064e57d3ccaa772b92f333 (patch) | |
| tree | ba197f1642e5b4338838233e2818f35c206ccf5a /drivers/thermal/intel/int340x_thermal/int3400_thermal.c | |
| parent | 671aa926a90aacf553857cd7eabfa04a3c95b091 (diff) | |
thermal: int340x_thermal: Use scnprintf() for avoiding potential buffer overflow
Since snprintf() returns the would-be-output size instead of the
actual output size, the succeeding calls may go beyond the given
buffer limit. Fix it by replacing with scnprintf().
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Pandruvada, Srinivas <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200311092718.24052-1-tiwai@suse.de
Diffstat (limited to 'drivers/thermal/intel/int340x_thermal/int3400_thermal.c')
| -rw-r--r-- | drivers/thermal/intel/int340x_thermal/int3400_thermal.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c index efae0c02d898..529df7174239 100644 --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c @@ -65,7 +65,7 @@ static ssize_t available_uuids_show(struct device *dev, for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; i++) { if (priv->uuid_bitmap & (1 << i)) if (PAGE_SIZE - length > 0) - length += snprintf(&buf[length], + length += scnprintf(&buf[length], PAGE_SIZE - length, "%s\n", int3400_thermal_uuids[i]); |