the parameter 'const char *buf' may be not '\0' based string.
so need check the length before use it.
additinal info:
originally, it had the relative checking.
but it was deleted when fix another issues (using strlcpy instead of
strncpy)
and now, we need restore the checking (but still keep strlcpy)
Signed-off-by: Chen Gang <gang.chen@xxxxxxxxxxx>
---
drivers/net/wireless/iwlegacy/3945-mac.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c
b/drivers/net/wireless/iwlegacy/3945-mac.c
index 050ce7c..71cdbac 100644
--- a/drivers/net/wireless/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
@@ -3273,7 +3273,7 @@ il3945_store_measurement(struct device *d, struct
device_attribute *attr,
if (count) {
char *p = buffer;
- strlcpy(buffer, buf, sizeof(buffer));
+ strlcpy(buffer, buf, min(sizeof(buffer), count));
channel = simple_strtoul(p, NULL, 0);
if (channel)
params.channel = channel;
--
1.7.10.4
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