add explicit format specifier to printf() invocations

umlaeute · umlaeute · commit 64a216af4c09 · 2022-08-03T15:15:12.000+02:00
CWE-134
diff --git a/v4l2loopback.c b/v4l2loopback.c
@@ -657,7 +657,7 @@ static inline void unset_flags(struct v4l2l_buffer *buffer)
 static void vidioc_fill_name(char *buf, int len, int nr)
 {
 	if (card_label[nr] != NULL) {
-		snprintf(buf, len, card_label[nr]);
+		snprintf(buf, len, "%s", card_label[nr]);
 	} else {
 		snprintf(buf, len, "Dummy video device (0x%04X)", nr);
 	}

Original file line number	Diff line number	Diff line change
`@@ -657,7 +657,7 @@ static inline void unset_flags(struct v4l2l_buffer *buffer)`
`657`	`657`	`static void vidioc_fill_name(char *buf, int len, int nr)`
`658`	`658`	`{`
`659`	`659`	`if (card_label[nr] != NULL) {`
`660`		`- snprintf(buf, len, card_label[nr]);`
	`660`	`+ snprintf(buf, len, "%s", card_label[nr]);`
`661`	`661`	`} else {`
`662`	`662`	`snprintf(buf, len, "Dummy video device (0x%04X)", nr);`
`663`	`663`	`}`