1 files changed, 18 insertions, 2 deletions

diff --git a/sway/commands.c b/sway/commands.c
index d87d0084..c15cb00a 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -121,6 +121,9 @@ void input_cmd_apply(struct input_config *input) {
                 for (int i = 0; i < input_devices->length; ++i) {
                         device = input_devices->items[i];
                         char* dev_identifier = libinput_dev_unique_id(device);
+                        if (!dev_identifier) {
+                                break;
+                        }
                         int match = dev_identifier && strcmp(dev_identifier, input->identifier) == 0;
                         free(dev_identifier);
                         if (match) {
@@ -386,7 +389,11 @@ struct cmd_results *handle_command(char *_exec, enum command_context context) {
                         if (!results) {
                                 int len = strlen(criteria) + strlen(head) + 4;
                                 char *tmp = malloc(len);
-                                snprintf(tmp, len, "[%s] %s", criteria, head);
+                                if (tmp) {
+                                        snprintf(tmp, len, "[%s] %s", criteria, head);
+                                } else {
+                                        sway_log(L_DEBUG, "Unable to allocate criteria string for cmd result");
+                                }
                                 results = cmd_results_new(CMD_INVALID, tmp,
                                         "Can't handle criteria string: Refusing to execute command");
                                 free(tmp);
@@ -568,6 +575,9 @@ struct cmd_results *config_commands_command(char *exec) {
         }
         if (!policy) {
                 policy = alloc_command_policy(cmd);
+                if (!policy) {
+                        sway_abort("Unable to allocate security policy");
+                }
                 list_add(config->command_policies, policy);
         }
         policy->context = context;
@@ -584,6 +594,10 @@ cleanup:
 
 struct cmd_results *cmd_results_new(enum cmd_status status, const char* input, const char *format, ...) {
         struct cmd_results *results = malloc(sizeof(struct cmd_results));
+        if (!results) {
+                sway_log(L_ERROR, "Unable to allocate command results");
+                return NULL;
+        }
         results->status = status;
         if (input) {
                 results->input = strdup(input); // input is the command name
@@ -594,7 +608,9 @@ struct cmd_results *cmd_results_new(enum cmd_status status, const char* input, c
                 char *error = malloc(256);
                 va_list args;
                 va_start(args, format);
-                vsnprintf(error, 256, format, args);
+                if (error) {
+                        vsnprintf(error, 256, format, args);
+                }
                 va_end(args);
                 results->error = error;
         } else {