diff options
| -rw-r--r-- | src/buffer.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/buffer.c b/src/buffer.c index 205aa333..89fd0f6d 100644 --- a/src/buffer.c +++ b/src/buffer.c @@ -145,9 +145,11 @@ static int realloc_buffer(struct ssh_buffer_struct *buffer, size_t needed) { if (new == NULL) { return -1; } - memcpy(new, buffer->data,buffer->used); - explicit_bzero(buffer->data, buffer->used); - SAFE_FREE(buffer->data); + if (buffer->used > 0) { + memcpy(new, buffer->data,buffer->used); + explicit_bzero(buffer->data, buffer->used); + SAFE_FREE(buffer->data); + } } else { new = realloc(buffer->data, needed); if (new == NULL) { |