qseecom: use strnlen in qseecom_start_app



The appname received by qseecom_start_app() can be non-null terminated
string beyond the max size check. Change strlen to strnlen.

CRs-fixed: 2062061
Change-Id: I845d244336b5c81cedb2153d1303585f16819d58
Signed-off-by: Zhen Kong <zkong@codeaurora.org>

parent be60ad58

drivers/misc/qseecom.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -4384,9 +4384,9 @@ int qseecom_start_app(struct qseecom_handle **handle,
		return -EINVAL;
		}

		if (strlen(app_name) >= MAX_APP_NAME_SIZE) {
		if (strnlen(app_name, MAX_APP_NAME_SIZE) == MAX_APP_NAME_SIZE) {
		pr_err("The app_name (%s) with length %zu is not valid\n",
		app_name, strlen(app_name));
		app_name, strnlen(app_name, MAX_APP_NAME_SIZE));
		return -EINVAL;
		}