diff options
| -rw-r--r-- | samples/landlock/sandboxer.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/samples/landlock/sandboxer.c b/samples/landlock/sandboxer.c index 32e930c853bb..8b8ecd65c28c 100644 --- a/samples/landlock/sandboxer.c +++ b/samples/landlock/sandboxer.c @@ -153,7 +153,7 @@ static int populate_ruleset_net(const char *const env_var, const int ruleset_fd, const __u64 allowed_access) { int ret = 1; - char *env_port_name, *strport; + char *env_port_name, *env_port_name_next, *strport; struct landlock_net_port_attr net_port = { .allowed_access = allowed_access, .port = 0, @@ -165,7 +165,8 @@ static int populate_ruleset_net(const char *const env_var, const int ruleset_fd, env_port_name = strdup(env_port_name); unsetenv(env_var); - while ((strport = strsep(&env_port_name, ENV_DELIMITER))) { + env_port_name_next = env_port_name; + while ((strport = strsep(&env_port_name_next, ENV_DELIMITER))) { net_port.port = atoi(strport); if (landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT, &net_port, 0)) { |