coverity: #1425764

Unchecked return value Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

coverity: #1425764
1f080b1d · Christian Brauner · 76356656 · 1f080b1d
Unverified Commit 1f080b1d authored Jun 14, 2018 by Christian Brauner
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Showing with 6 additions and 1 deletion

lxccontainer.c src/lxc/lxccontainer.c +6 -1

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--- a/src/lxc/lxccontainer.c
+++ b/src/lxc/lxccontainer.c
@@ -1564,7 +1564,12 @@ static bool create_run_template(struct lxc_container *c, char *tpath,
 			snprintf(txtuid, 20, "%d", hostuid_mapped);
 			n2[n2args - 4] = txtuid;
 			n2[n2args - 3] = "--mapped-gid";
-			snprintf(txtgid, 20, "%d", hostgid_mapped);
+			ret = snprintf(txtgid, 20, "%d", hostgid_mapped);
+			if (ret < 0 || ret >= 20) {
+				free(newargv);
+				free(n2);
+				_exit(EXIT_FAILURE);
+			}
 			n2[n2args - 2] = txtgid;
 			n2[n2args - 1] = NULL;
 			free(newargv);