From: Shinwoo Kim <cinoo.kim@samsung.com>
Date: Tue, 10 Apr 2018 07:13:44 +0000 (+0900)
Subject: efl_io_queue: add null check for slice->mem
X-Git-Tag: upstream/1.21.0~1376
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7b60af77f54962c38aadc4088f1661d1bd74c5ec;p=platform%2Fupstream%2Fefl.git

efl_io_queue: add null check for slice->mem

A negative test case leads to segmentation fault.
If ecore_evas_msg_parent_send is called with NULL data, then slice->mem would
be NULL, and _efl_io_queue_efl_io_writer_write calls memcpy with NULL src.
---

diff --git a/src/lib/efl/interfaces/efl_io_queue.c b/src/lib/efl/interfaces/efl_io_queue.c
index 80bc063..d073836 100644
--- a/src/lib/efl/interfaces/efl_io_queue.c
+++ b/src/lib/efl/interfaces/efl_io_queue.c
@@ -375,6 +375,7 @@ _efl_io_queue_efl_io_writer_write(Eo *o, Efl_Io_Queue_Data *pd, Eina_Slice *slic
    int err = EINVAL;
 
    EINA_SAFETY_ON_NULL_RETURN_VAL(slice, EINVAL);
+   EINA_SAFETY_ON_NULL_RETURN_VAL(slice->mem, EINVAL);
    EINA_SAFETY_ON_TRUE_GOTO(efl_io_closer_closed_get(o), error);
 
    err = EBADF;