Bug 91356 - Dereference a pointer after null check
Summary: Dereference a pointer after null check
Status: RESOLVED NOTABUG
Alias: None
Product: Wayland
Classification: Unclassified
Component: wayland (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Ashim
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Reported: 2015-07-16 06:02 UTC by Ashim
Modified: 2018-06-04 06:59 UTC (History)
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Description Ashim 2015-07-16 06:02:46 UTC
Overview:
---------
Dereference a pointer after null check
 

Description:
-----------

File: http://cgit.freedesktop.org/wayland/wayland/tree/src/wayland-server.c
Line: 783

client->display_resource is NULL and client is passed as argument as below
wl_client_post_no_memory(client);

Line: 515
client->display_resource (NULL) is passed as argument
wl_resource_post_error(client->display_resource, WL_DISPLAY_ERROR_NO_MEMORY, "no memory");

Line: 210
struct wl_client *client = resource->client;
resource is NULL so dereferencing a NULL pointer.

Expected:
--------
NULL checking required before dereferencing
Comment 1 Ashim 2015-08-25 04:26:29 UTC
The patch for this Bug was submitted.
and the link for the patch is as follows:

http://lists.freedesktop.org/archives/wayland-devel/2015-July/023723.html
Comment 2 Daniel Stone 2018-06-04 06:59:08 UTC
Closing this bug, since the patch was discussed on the list.


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