Commit graph

18 commits

Author SHA1 Message Date
Jeremy Huddleston
597747c655 Fix a couple off-by-one array boundary checks.
Error: Write outside array bounds at Xext/geext.c:406
        in function 'GEWindowSetMask' [Symbolic analysis]
       In array dereference of cli->nextSib[extension] with index 'extension'
       Array size is 128 elements (of 4 bytes each), index <= 128

Error: Buffer overflow at dix/events.c:592
	in function 'SetMaskForEvent' [Symbolic analysis]
       In array dereference of filters[deviceid] with index 'deviceid'
       Array size is 20 elements (of 512 bytes each), index >= 0 and index <= 20

Error: Read buffer overflow at hw/xfree86/loader/loader.c:226
	in function 'LoaderOpen' [Symbolic analysis]
       In array dereference of refCount[new_handle] with index 'new_handle'
       Array size is 256 elements (of 4 bytes each), index >= 1 and index <= 256

These bugs were found using the Parfait source code analysis tool.
For more information see http://research.sun.com/projects/parfait

Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit b680bda34d)
(cherry picked from commit 04c9e80f08)

Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-29 14:15:17 -07:00
Julien Cristau
f2bda61c03 Xext: Fix compiler warnings
Make GEClientGone static and include registry.h, to fix the following
warnings:
geext.c:225: warning: no previous prototype for 'GEClientGone'
geext.c: In function 'GEExtensionInit':
geext.c:280: warning: implicit declaration of function 'RegisterResourceName'
geext.c:280: warning: nested extern declaration of 'RegisterResourceName'
2008-10-26 11:43:48 +01:00
Tomas Carnecky
ebea78cdba Prepare for array-index based devPrivates.
TODO: static indices can be made just an int; some indices
can be combined.
2008-08-28 18:05:40 -04:00
Peter Hutterer
acce270935 Xext: store the GenericMasks in the resource system.
This fixes a severe issue - when the client died the event mask didn't get
unregistered and a future event would dereference dangling pointers. By
storing the event masks in the resource system we can free them when the
client dies.
2008-07-10 16:02:55 +09:30
Peter Hutterer
5c5a1eaf68 Replace UniSA with full Uni name in Author affiliation.
Big boss says UniSA isn't unique enough. Who am I to argue?
2008-05-21 21:51:27 +09:30
Peter Hutterer
f5ac98747d Standardise copyright headers for all new files created as part of MPX. 2008-04-25 14:50:24 +09:30
Peter Hutterer
cc13f87cd8 Xext: XGE: change function definition to have return value on separate line.
This seems to be the common style in most parts of the server.
2008-04-24 11:43:47 +09:30
Peter Hutterer
d0890c40b9 Xext: add a few lines of comments to XGE. 2008-04-24 11:32:36 +09:30
Peter Hutterer
745b90cde1 Xext: re-do the XGE versioning handling.
Basically the same approach RandR takes. Remember which one the client
requested, send back the one the server supports. Also divide XGE server
version (now defined in geext.c) and the client's version (still in the
protocol definition).
2008-04-24 11:27:22 +09:30
Peter Hutterer
5f3e5b3462 Xext: remove trailing whitespaces in geext.{c|h} 2008-04-24 11:14:43 +09:30
Peter Hutterer
379f057646 Xext: add GEDeviceMaskIsSet (GE mask checking per device)
If a mask was set for the NULL device, then we pretend the mask is set for all
devices.
2008-01-25 10:27:26 +10:30
Peter Hutterer
94a6a65ae7 Xext: allow per-device GE masks.
Instead of a single mask per client we allow the storage of a mask per client
per device.
2008-01-25 10:26:41 +10:30
Peter Hutterer
8da83836b6 Merge branch 'master' into mpx
Conflicts:

	XTrap/xtrapddmi.c
	Xext/security.c
	Xext/xprint.c
	Xext/xtest.c
	Xext/xvdisp.c
	Xi/exevents.c
	Xi/grabdevb.c
	Xi/grabdevk.c
	Xi/opendev.c
	Xi/ungrdev.c
	Xi/ungrdevb.c
	Xi/ungrdevk.c
	dix/cursor.c
	dix/devices.c
	dix/dixutils.c
	dix/events.c
	dix/getevents.c
	dix/main.c
	dix/window.c
	hw/xfree86/ramdac/xf86Cursor.c
	include/dix.h
	include/input.h
	include/inputstr.h
	mi/midispcur.c
	mi/miinitext.c
	mi/misprite.c
	render/animcur.c
	xfixes/cursor.c
	xkb/xkbAccessX.c
2008-01-03 17:04:54 +10:30
Peter Hutterer
5ccc09b182 Use the same struct for generic event masks throughout the code.
Renaming those structs too.

Previously grabs were using a different struct than windows, which was
reasonably stupid.
2007-07-06 15:43:08 +09:30
Peter Hutterer
c1a16bdcfe Add 'evfill' field to GEExtensions.
We need this to allow extensions to fill in extra data for an event before it
is sent to the client. This is probably to be used like
FillUpEventsFromWindow().
2007-07-01 09:14:18 +09:30
Peter Hutterer
333bab4b23 Clean up, correct some comments.
Send event type down with the RawEvents.
2007-05-17 17:59:02 +09:30
Peter Hutterer
c03d9a7217 Cleaning up a bit.
Register correct event in EventSwapVector.
Fix up event swap for GE events, register XI's swap function at GE.
2007-05-02 18:16:40 +09:30
Peter Hutterer
5e43910929 Add GenericEvent extension to Xext.
This adds (unconditional) support for the GE extension. Anything from now on
that sends events in MPX will have to use the GE extension. No GE, no MPX
events. GE is not actually used yet from anywhere with this commit.

You will need to update x11proto, xextproto, libX11, libXext and xcb to the
matching xge branches. Things will _NOT_ work without the updated protocol
headers and libraries.
2007-04-30 12:57:42 +09:30