diff options
| -rw-r--r-- | fastboot/engine.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fastboot/engine.c b/fastboot/engine.c index ee68f26..28a0ad9 100644 --- a/fastboot/engine.c +++ b/fastboot/engine.c @@ -97,14 +97,20 @@ static Action *queue_action(unsigned op, const char *fmt, ...) { Action *a; va_list ap; + size_t cmdsize; a = calloc(1, sizeof(Action)); if (a == 0) die("out of memory"); va_start(ap, fmt); - vsprintf(a->cmd, fmt, ap); + cmdsize = vsnprintf(a->cmd, sizeof(a->cmd), fmt, ap); va_end(ap); + if (cmdsize >= sizeof(a->cmd)) { + free(a); + die("Command length (%d) exceeds maximum size (%d)", cmdsize, sizeof(a->cmd)); + } + if (action_last) { action_last->next = a; } else { |