Commit Graph

18121 Commits

Author SHA1 Message Date
Joshua Ashton 4119cd9ffa xwayland: Add some more xwayland fake modes
Adds the following 16:10 modes primarily for scaling up on Steam Deck:
 - 1152x720
 - 960x600
 - 928x580
 - 800x500
 - 768x480

Signed-off-by: Joshua Ashton <joshua@froggi.es>
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2022-05-12 13:09:31 +00:00
Olivier Fourdan 7b7170ecd6 xwayland/output: Set the "RANDR Emulation" property
Xwayland does not change the actual XRANDR setup for real, it just
emulates the resolution changes using viewports in Wayland.

With a single output, if an X11 applications tries to change the CRTC
back to the native mode, RRCrtcSet() will simply ignore the request as
no actual change is induced by this.

Set the property "RANDR Emulation" on all Xwayland outputs to make sure
the optimizations in RRCrtcSet() get skipped and Xwayland can receive
and act upon the client request.

Also make sure we do not allow that property to be changed by X11
clients.

v2: Prevent X11 clients from changing the property value
    (Pekka Paalanen <pekka.paalanen@collabora.com>)

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1305
2022-04-20 10:03:32 +02:00
Olivier Fourdan 0904421f57 randr: Add "RANDR Emulation" property
When RANDR is emulated as with Xwayland, the actual output configuration
does not change as RANDR is emulated using viewports.

As a result, changes to the CRTC may be skipped, resulting in the
configuration being (wrongly) assumed to be unchanged.

Add a new output property "RANDR Emulation" that the DDX can set to
force RRCrtcSet() to reconfigure the CRTC regardless of the change.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2022-04-20 10:03:15 +02:00
Olivier Fourdan 972603845e randr: No need to check RRGetOutputProperty() twice
The function rrGetPixmapSharingSyncProp() will check for the PRIME sync
property "PRIME Synchronization" on each output and return false if
any of the output has this property set to false.

To do so, it will call RRGetOutputProperty() twice for each output, once
with pending true and once with pending false to cover both
possibilities.

However, reading the implementation of RRGetOutputProperty(), it appears
that if the property is not pending, the code will return the current
value even if invoked with pending true.

So the second call to RRGetOutputProperty() with pending false seems
superfluous.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Fixes: df8e86931e - randr: Add ability to turn PRIME sync off
Reviewed-by: Alex Goins <agoins@nvidia.com>
Tested-by: Alex Goins <agoins@nvidia.com>
2022-04-20 07:02:54 +00:00
Weng Xuetian 479c8aae8e
xwayland: Fix invalid pointer access in drm_lease_device_handle_released.
drm_lease_device_handle_released uses the wrong pointer type in the
callback. This will cause crash when compositor removes drm lease device
object.

Fixes: 089e7f98f - Xwayland: implement drm-lease-v1

Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
Signed-off-by: Weng Xuetian <wengxt@gmail.com>
2022-04-19 08:03:04 -07:00
Alan Coopersmith 6d468c68d6 xfree86: finish removing numTimings in xf86ValidateModes()
Finishes the work started in commit cd0d4c1bb5
to remove checks for the variable that never varied from 0 after the code
to change it was removed by commit 511c60bc73
in 2006 (xorg-server-1.2.0).

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2022-04-05 16:08:56 -07:00
Konstantin Kharlamov 4422177d26 gen_gl_wrappers: remove unused imports
Fixes LGTM warnings:
    * Import of 'cProfile' is not used.
    * Import of 'pdb' is not used.
    * Import of 'string' is not used.
    * Import of 'time' is not used.

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
2022-04-02 18:06:30 +00:00
Konstantin Kharlamov 1eddcbe5c4 fdi2iclass: remove unused local variable
Fixes LGTM warning "The value assigned to local variable 'children' is
never used."

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
2022-04-02 18:06:30 +00:00
Konstantin Kharlamov cd9d32c289 fdi2iclass.py: use "is" to compare with None
Fixes LGTM warning "Testing for None should use the 'is' operator."

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
2022-04-02 18:06:30 +00:00
Konstantin Kharlamov 0011f4ad17 modesetting: don't pass a big struct by value
Fixes LGTM warning "This parameter of type drmModeModeInfo is 68 bytes -
consider passing a const pointer/reference instead."

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
2022-04-02 18:06:30 +00:00
Konstantin Kharlamov b6f79815ee glx: remove a noop assert (index is unsigned)
Fixes "Pointless comparison of unsigned value to zero."

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
2022-04-02 18:06:30 +00:00
Konstantin Kharlamov bad94e88ce xkbtext: fix copy-paste error
As can be seen in diff, nOut is always 0 here. The code was likely
copy-pasted from comparisons further below.

Fixes LGTM warning "Comparison is always false because nOut <= 0."

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
2022-04-02 18:06:30 +00:00
Konstantin Kharlamov 49c64bd169 Xext: the check firstValuator ≤ 1 is duplicated in this branch
Correctness is ensured be checking md5sum result before and after the
commit (it's the same).

Fixes LGTM warning: "Comparison is always true because firstValuator <= 1."

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
2022-04-02 18:06:30 +00:00
Konstantin Kharlamov cd0d4c1bb5 xfree86: numTimings is never value other than 0
Correctness is ensured be checking md5sum result before and after the
commit (it's the same).

Fixes LGTM warning "Comparison is always false because numTimings <= 0."

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
2022-04-02 18:06:30 +00:00
Konstantin Kharlamov 1d80db55dd exa: fix "comparison is always false"
Both functions has a check at the beginning to return when h > 32767.

Fixes LGTM 2 warnings "Comparison is always false because h <= 32767."

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
2022-04-02 18:06:30 +00:00
Brian Ruthven a79bd188fe x86emu: re-align breaks in ins() and outs()
Makes the 4-byte cases match those for 1- & 2-byte handling,
moving the break from being unconditionally hit the first time
through the to loop to after the loop is done.

Fixes Solaris Studio compiler warnings:
"prim_ops.c", line 2626: warning: end-of-loop code not reached
"prim_ops.c", line 2692: warning: end-of-loop code not reached

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2022-03-31 20:44:06 +00:00
Alan Coopersmith 6f9fce0360 Replace "the the" with a single "the" in docs & comments
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Martin Roukala <martin.roukala@mupuf.org>
2022-03-31 13:27:57 -07:00
Claes Nästén 9554f1f208 xfree86: #ifdef HAS_USL_VTS for switch_to under Solaris
switch_to() is only used from #ifdef HAS_USL_VTS code, place it inside
ifdefs to to avoid unused static warning and compile error on systems
without VT_ACTIVATE and VT_WAITACTIVE defines.
2022-03-31 20:18:15 +00:00
Michel Dänzer 9e5a379610 xwayland: Always hook up frame_callback_list in xwl_present_queue_vblank
Even if there's no pending frame callback yet.

Without this, if there was no pending frame callback yet in
xwl_present_queue_vblank, xwl_present_msc_bump would only get called
from xwl_present_timer_callback, resulting in the MSC ticking at ~58
Hertz.

Doing this requires some adjustments elsewhere:

1. xwl_present_reset_timer needs to check for a pending frame callback
   as well.
2. xwl_window_create_frame_callback needs to call
   xwl_present_reset_timer for all child windows hooked up to
   frame_callback_list, to make sure the timer length takes the pending
   frame callback into account.
3. xwl_present_flip needs to hook up the window to frame_callback_list
   before calling xwl_window_create_frame_callback, for 2. to work.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1309
Fixes: 9b31358c52 ("xwayland: Use frame callbacks for Present vblank events")
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
2022-03-17 10:22:34 +01:00
Michel Dänzer 102764b683 xwayland: Clear timer_armed in xwl_present_unrealize_window
Without this, xwl_present_reset_timer would call
xwl_present_timer_callback if the timer was originally armed over a
second ago. xwl_present_timer_callback would call xwl_present_msc_bump,
which could end up hooking up the window to
xwl_window->frame_callback_list again. This would lead to use-after-free
in xwl_present_cleanup:

  Invalid write of size 8
    at 0x42B65C: __xorg_list_del (list.h:183)
    by 0x42B693: xorg_list_del (list.h:204)
    by 0x42C041: xwl_present_cleanup (xwayland-present.c:354)
    by 0x423669: xwl_destroy_window (xwayland-window.c:770)
    by 0x4FDDC5: compDestroyWindow (compwindow.c:620)
    by 0x5233FB: damageDestroyWindow (damage.c:1590)
    by 0x501C5F: DbeDestroyWindow (dbe.c:1326)
    by 0x4EF35B: FreeWindowResources (window.c:1018)
    by 0x4EF687: DeleteWindow (window.c:1086)
    by 0x4E24B3: doFreeResource (resource.c:885)
    by 0x4E2ED7: FreeClientResources (resource.c:1151)
    by 0x4ACBA4: CloseDownClient (dispatch.c:3546)
  Address 0x12f44980 is 144 bytes inside a block of size 160 free'd
    at 0x48470E4: free (vg_replace_malloc.c:872)
    by 0x423115: xwl_unrealize_window (xwayland-window.c:621)
    by 0x4FCDD8: compUnrealizeWindow (compwindow.c:292)
    by 0x4F3F5C: UnrealizeTree (window.c:2805)
    by 0x4F424B: UnmapWindow (window.c:2863)
    by 0x4EF58C: DeleteWindow (window.c:1075)
    by 0x4E24B3: doFreeResource (resource.c:885)
    by 0x4E2ED7: FreeClientResources (resource.c:1151)
    by 0x4ACBA4: CloseDownClient (dispatch.c:3546)
    by 0x5E27EE: ClientReady (connection.c:599)
    by 0x5E6CB7: ospoll_wait (ospoll.c:657)
    by 0x5DE6CD: WaitForSomething (WaitFor.c:208)
  Block was alloc'd at
    at 0x4849464: calloc (vg_replace_malloc.c:1328)
    by 0x4229CE: ensure_surface_for_window (xwayland-window.c:439)
    by 0x4231E8: xwl_window_set_window_pixmap (xwayland-window.c:647)
    by 0x5232D6: damageSetWindowPixmap (damage.c:1565)
    by 0x4FC7BC: compSetPixmapVisitWindow (compwindow.c:129)
    by 0x4EDB3F: TraverseTree (window.c:441)
    by 0x4FC851: compSetPixmap (compwindow.c:151)
    by 0x4F8C1A: compAllocPixmap (compalloc.c:616)
    by 0x4FC938: compCheckRedirect (compwindow.c:174)
    by 0x4FCD1D: compRealizeWindow (compwindow.c:274)
    by 0x4F36EC: RealizeTree (window.c:2606)
    by 0x4F39F5: MapWindow (window.c:2683)

Fixes: 288ec0e046 ("xwayland/present: Run fallback timer callback after more than a second")
Tested-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
2022-03-15 08:59:19 +00:00
Olivier Fourdan 42113ab289 xwayland/present: Fix use-after-free in xwl_unrealize_window()
When a window is unrealized, Xwayland would destroy the Wayland surface
prior to unrealizing the present window.

xwl_present_flip() will then do a wl_surface_commit() of that surface,
hence causing a use-after-free:

 Invalid read of size 8
    at 0x49F7FD4: wl_proxy_marshal_array_flags (wayland-client.c:852)
    by 0x49F823A: wl_proxy_marshal_flags (wayland-client.c:784)
    by 0x42B877: wl_surface_commit (wayland-client-protocol.h:3914)
    by 0x42CAA7: xwl_present_flip (xwayland-present.c:717)
    by 0x42CD0E: xwl_present_execute (xwayland-present.c:783)
    by 0x42C26D: xwl_present_msc_bump (xwayland-present.c:416)
    by 0x42C2D1: xwl_present_timer_callback (xwayland-present.c:433)
    by 0x42BAC4: xwl_present_reset_timer (xwayland-present.c:149)
    by 0x42D1F8: xwl_present_unrealize_window (xwayland-present.c:945)
    by 0x4230E2: xwl_unrealize_window (xwayland-window.c:616)
    by 0x4FCDD8: compUnrealizeWindow (compwindow.c:292)
    by 0x4F3F5C: UnrealizeTree (window.c:2805)
  Address 0x1390b8d8 is 24 bytes inside a block of size 80 free'd
    at 0x48470E4: free (vg_replace_malloc.c:872)
    by 0x49F8029: wl_proxy_destroy_caller_locks (wayland-client.c:523)
    by 0x49F8029: wl_proxy_marshal_array_flags (wayland-client.c:861)
    by 0x49F823A: wl_proxy_marshal_flags (wayland-client.c:784)
    by 0x421984: wl_surface_destroy (wayland-client-protocol.h:3672)
    by 0x423052: xwl_unrealize_window (xwayland-window.c:599)
    by 0x4FCDD8: compUnrealizeWindow (compwindow.c:292)
    by 0x4F3F5C: UnrealizeTree (window.c:2805)
    by 0x4F424B: UnmapWindow (window.c:2863)
    by 0x4EF58C: DeleteWindow (window.c:1075)
    by 0x4E24B3: doFreeResource (resource.c:885)
    by 0x4E2ED7: FreeClientResources (resource.c:1151)
    by 0x4ACBA4: CloseDownClient (dispatch.c:3546)
  Block was alloc'd at
    at 0x4849464: calloc (vg_replace_malloc.c:1328)
    by 0x49F7F29: zalloc (wayland-private.h:233)
    by 0x49F7F29: proxy_create (wayland-client.c:422)
    by 0x49F7F29: create_outgoing_proxy (wayland-client.c:664)
    by 0x49F7F29: wl_proxy_marshal_array_flags (wayland-client.c:831)
    by 0x49F823A: wl_proxy_marshal_flags (wayland-client.c:784)
    by 0x4218CA: wl_compositor_create_surface (wayland-client-protocol.h:1291)
    by 0x422A0D: ensure_surface_for_window (xwayland-window.c:445)
    by 0x4231E8: xwl_window_set_window_pixmap (xwayland-window.c:647)
    by 0x5232D6: damageSetWindowPixmap (damage.c:1565)
    by 0x4FC7BC: compSetPixmapVisitWindow (compwindow.c:129)
    by 0x4EDB3F: TraverseTree (window.c:441)
    by 0x4FC851: compSetPixmap (compwindow.c:151)
    by 0x4F8C1A: compAllocPixmap (compalloc.c:616)
    by 0x4FC938: compCheckRedirect (compwindow.c:174)

To avoid that, call xwl_present_unrealize_window() before destroying the
Wayland surface.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
2022-03-15 08:59:19 +00:00
Olivier Fourdan 47d3317464 Xwayland: Do not map the COW by default when rootless
The composite overlay window (COW) can be queried from any X11 client,
not just the X11 compositing manager.

If a client tries to get the composite overlay window, the Xserver will
map the window and block all pointer events (the window being mapped and
on top of the stack).

To avoid that issue, unset the "mapped" state of the composite overlay
window once realized when Xwayland is running rootless.

Note: All Xservers are actually affected by this issue, but with most
regular X servers, the compositing manager will take care of dealing
with the composite overlay window, and an X11 client using
GetOverlayWindow() won't break pointer events for all X11 clients.
Wayland compositors however usually run Xwayland rootless and have no
use for the COW.

v2: Avoid registering damage for the COW (Michel)
v3: Remove the "mapped" test to avoid calling register_damage() if the
    COW is not mapped (Michel)

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1314
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
2022-03-08 16:43:01 +01:00
Povilas Kanapickas 7d2014e7d5 xfree86: Fix event data alignment in inputtest driver
This fixes address sanitizer errors when running unit tests. The
additional copying may reduce performance by a small amount, but we
don't care about that because this driver is used for testing only.

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2022-02-16 15:25:28 +02:00
Povilas Kanapickas 43e934a19f dix: Don't send touch end to clients that do async grab without touches
GTK3 menu widget creates a selection for touch and other events and
after receiving touch events creates an async grab that excludes touch
events. Unfortunately it relies on X server not sending the touch end
event in order to function properly. Sending touch end event will cause
it to think that the initiating touch ended and when it actually ends,
the ButtonRelease event will make it think that the menu should be
closed. As a result, the menu will be open only for the duration of the
touch making it useless.

This commit reverts f682e0563f.

Fixes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1255

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2022-02-12 15:26:30 +00:00
Olivier Fourdan 6ad6517a79 xwayland: Fix cursor color
When using colored X11 cursors, the colors would appear wrong, yellow
would show white, green would show as cyan, and blue would show black
whereas red would show fine.

This is because the code expanding the cursor data accounts for green
for both green and blue channels. Funnily this bug has been there from
the beginning.

Fix the issue by correctly account for the color channels.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1303
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
2022-02-11 10:33:10 +01:00
Povilas Kanapickas 1801fe0ac3 dix: Fix use after free in input device shutdown
This fixes access to freed heap memory via dev->master. E.g. when
running BarrierNotify.ReceivesNotifyEvents/7 test from
xorg-integration-tests:

==24736==ERROR: AddressSanitizer: heap-use-after-free on address
0x619000065020 at pc 0x55c450e2b9cf bp 0x7fffc532fd20 sp 0x7fffc532fd10
READ of size 4 at 0x619000065020 thread T0
    #0 0x55c450e2b9ce in GetMaster ../../../dix/devices.c:2722
    #1 0x55c450e9d035 in IsFloating ../../../dix/events.c:346
    #2 0x55c4513209c6 in GetDeviceUse ../../../Xi/xiquerydevice.c:525
../../../Xi/xichangehierarchy.c:95
    #4 0x55c450e3455c in RemoveDevice ../../../dix/devices.c:1204
../../../hw/xfree86/common/xf86Xinput.c:1142
    #6 0x55c450e17b04 in CloseDeviceList ../../../dix/devices.c:1038
    #7 0x55c450e1de85 in CloseDownDevices ../../../dix/devices.c:1068
    #8 0x55c450e837ef in dix_main ../../../dix/main.c:302
    #9 0x55c4517a8d93 in main ../../../dix/stubmain.c:34
(/lib/x86_64-linux-gnu/libc.so.6+0x28564)
    #11 0x55c450d0113d in _start (/usr/lib/xorg/Xorg+0x117713d)

0x619000065020 is located 160 bytes inside of 912-byte region
[0x619000064f80,0x619000065310)
freed by thread T0 here:
(/usr/lib/x86_64-linux-gnu/libasan.so.5+0x10d7cf)
    #1 0x55c450e19f1c in CloseDevice ../../../dix/devices.c:1014
    #2 0x55c450e343a4 in RemoveDevice ../../../dix/devices.c:1186
../../../hw/xfree86/common/xf86Xinput.c:1142
    #4 0x55c450e17b04 in CloseDeviceList ../../../dix/devices.c:1038
    #5 0x55c450e1de85 in CloseDownDevices ../../../dix/devices.c:1068
    #6 0x55c450e837ef in dix_main ../../../dix/main.c:302
    #7 0x55c4517a8d93 in main ../../../dix/stubmain.c:34
(/lib/x86_64-linux-gnu/libc.so.6+0x28564)

previously allocated by thread T0 here:
(/usr/lib/x86_64-linux-gnu/libasan.so.5+0x10ddc6)
    #1 0x55c450e1c57b in AddInputDevice ../../../dix/devices.c:259
    #2 0x55c450e34840 in AllocDevicePair ../../../dix/devices.c:2755
    #3 0x55c45130318f in add_master ../../../Xi/xichangehierarchy.c:152
../../../Xi/xichangehierarchy.c:465
    #5 0x55c4512cb9f5 in ProcIDispatch ../../../Xi/extinit.c:390
    #6 0x55c450e6a92b in Dispatch ../../../dix/dispatch.c:551
    #7 0x55c450e834b7 in dix_main ../../../dix/main.c:272
    #8 0x55c4517a8d93 in main ../../../dix/stubmain.c:34
(/lib/x86_64-linux-gnu/libc.so.6+0x28564)

The problem is caused by dev->master being not reset when disabling the
device, which then causes dangling pointer when the master device itself
is being deleted when exiting whole server.

Note that RecalculateMasterButtons() requires dev->master to be still
valid, so we can reset it only at the end of function.

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2022-02-09 11:36:48 +00:00
Povilas Kanapickas 6ef5c05728 dix: Correctly save replayed event into GrabInfoRec
When processing events we operate on InternalEvent pointers. They may
actually refer to a an instance of DeviceEvent, GestureEvent or any
other event that comprises the InternalEvent union. This works well in
practice because we always look into event type before doing anything,
except in the case of copying the event.

*dst_event = *src_event would copy whole InternalEvent event and would
cause out of bounds read in case the pointed to event was not
InternalEvent but e.g. DeviceEvent.

This regression has been introduced in
23a8b62d34.

Fixes https://gitlab.freedesktop.org/xorg/xserver/-/issues/1261

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2022-02-09 11:33:03 +00:00
Povilas Kanapickas 34b870da88 meson: Remove config macros that are no longer used
All of the macros in question are not used in current xserver sources.

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2022-02-06 11:31:50 +00:00
nia 9946b0f199 config/wscons: Always attach the "ws" driver for pointer devices,
rather than "mouse".

Both OpenBSD and NetBSD (the only downstream users of this code)
are both patching in this currently.

Signed-off-by: Nia Alarie <nia@NetBSD.org>
2022-02-06 12:48:39 +02:00
nia bcee84c3e4 config/wscons: Fix build and add support for NetBSD
Signed-off-by: Nia Alarie <nia@NetBSD.org>
2022-02-06 12:48:39 +02:00
nerdopolis 4c03b67d33 xephyr: Don't check for SeatId anymore
After a change for the xserver to automatically determine the seat
based on the XDG_SEAT variable, xephyr stopped working. This was
because of an old feature where xephyr used to handle evdev
directly. This was dropped some time ago, and now this check is
not needed
2022-02-03 22:34:03 +00:00
Samuel Thibault 0217cc6e0c xkb: fix XkbSetMap when changing a keysym without changing a keytype
As the comment says:

"symsPerKey/mapWidths must be filled regardless of client-side flags"

so we always have to call CheckKeyTypes which will notably fill mapWidths
and nTypes. That is needed for CheckKeySyms to work since it checks the
width. Without it, any request with XkbKeySymsMask but not
XkbKeyTypesMask will fail because of the missing width information, for
instance this:

  XkbDescPtr xkb;
  if (!(xkb = XkbGetMap (dpy, XkbKeyTypesMask|XkbKeySymsMask, XkbUseCoreKbd))) {
    fprintf (stderr, "ERROR getting map\n");
    exit(1);
  }
  XFlush (dpy);
  XSync (dpy, False);

  XkbMapChangesRec changes = { .changed = 0 };
  int oneGroupType[XkbNumKbdGroups] = { XkbOneLevelIndex };

  if (XkbChangeTypesOfKey(xkb, keycode, 1, XkbGroup1Mask, oneGroupType, &changes)) {
    fprintf(stderr, "ERROR changing type of key\n");
    exit(1);
  }
  XkbKeySymEntry(xkb,keycode,0,0) = keysym;

  if (!XkbChangeMap(dpy,xkb,&changes)) {
    fprintf(stderr, "ERROR changing map\n");
    exit(1);
  }

  XkbFreeKeyboard (xkb, 0, TRUE);
  XFlush (dpy);
  XSync (dpy, False);

This had being going under the radar since about ever until commit
de940e06f8 ("xkb: fix key type index check
in _XkbSetMapChecks") fixed checking the values of kt_index, which was
previously erroneously ignoring errors and ignoring all other checks, just
because nTypes was not set, precisely because CheckKeyTypes was not called.

Note: yes, CheckKeyTypes is meant to be callable without XkbKeyTypesMask, it
does properly check for that and just fills nTypes and mapWidths in that
case.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2022-02-03 21:44:37 +00:00
tholin dc7cb45482 dix: Hold input lock for AttachDevice()
Fix the following race:

Possible data race during read of size 8 at 0xA112510 by thread #6
Locks held: 1, at address 0x366B40
   at 0x14C8B9: GetMaster (devices.c:2691)
   by 0x15CFC5: IsFloating (events.c:346)
   by 0x2B9554: miPointerGetScreen (mipointer.c:527)
   by 0x1A5136: xf86PostButtonEventM (xf86Xinput.c:1379)
   by 0x1A52BD: xf86PostButtonEvent (xf86Xinput.c:1345)
   by 0x485F45B: EvdevProcessEvent (in /usr/lib64/xorg/modules/input/evdev_drv.so)
   by 0x485FDAC: EvdevReadInput (in /usr/lib64/xorg/modules/input/evdev_drv.so)
   by 0x195427: xf86ReadInput (xf86Events.c:247)
   by 0x2CC113: InputReady (inputthread.c:180)
   by 0x2CE4EA: ospoll_wait (ospoll.c:657)
   by 0x2CC077: InputThreadDoWork (inputthread.c:369)
   by 0x484A336: mythread_wrapper (hg_intercepts.c:406)

This conflicts with a previous write of size 8 by thread #1
Locks held: none
   at 0x14D2C6: AttachDevice (devices.c:2609)
   by 0x15CF85: ReattachToOldMaster (events.c:1457)
   by 0x1647DD: DeactivateKeyboardGrab (events.c:1700)
   by 0x25D7F1: ProcXIUngrabDevice (xigrabdev.c:169)
   by 0x2552AD: ProcIDispatch (extinit.c:398)
   by 0x155291: Dispatch (dispatch.c:479)
   by 0x158CBA: dix_main (main.c:276)
   by 0x143A3D: main (stubmain.c:34)
 Address 0xa112510 is 336 bytes inside a block of size 904 alloc'd
   at 0x4846571: calloc (vg_replace_malloc.c:1328)
   by 0x14A0B3: AddInputDevice (devices.c:260)
   by 0x1A31A0: xf86ActivateDevice (xf86Xinput.c:365)
   by 0x1A4549: xf86NewInputDevice (xf86Xinput.c:948)
   by 0x1A4B44: NewInputDeviceRequest (xf86Xinput.c:1090)
   by 0x1B81FE: device_added (udev.c:282)
   by 0x1B8516: config_udev_init (udev.c:439)
   by 0x1B7091: config_init (config.c:50)
   by 0x197970: InitInput (xf86Init.c:814)
   by 0x158C6B: dix_main (main.c:250)
   by 0x143A3D: main (stubmain.c:34)
 Block was alloc'd by thread #1

The steps to trigger the race are:
1. Main thread does cleanup at mipointer.c:360 setting the slave device's
   miPointerPtr to null.
2. Input thread use MIPOINTER in mipointer.c and get the slave's
   miPointerPtr = null.
3. Main thread updates dev->master at devices.c:2609.
4. MIPOINTER would now return the master's miPointerPtr but the input
   thread already got the slave's miPointerPtr in step 2 and segfaults by
   null ptr deref.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1260
Signed-off-by: Thomas Lindroth <thomas.lindroth@gmail.com>
2022-02-03 16:56:53 +00:00
Thomas Zimmermann 2e6edeb569 xf86: Accept devices with the 'hyperv_drm' driver
Put in a workaround to accept devices of the kernel's hyperv_drm
driver. Makes Xorg work on HyperV Gen 1/2 with the DRM graphics
stack.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2022-01-29 11:20:34 +00:00
Olivier Fourdan c6b0dcb82d render: Fix build with gcc 12
The xserver fails to compile with the latest gcc 12:

 render/picture.c: In function ‘CreateSolidPicture’:
 render/picture.c:874:26: error: array subscript ‘union _SourcePict[0]’ is partly outside array bounds of ‘unsigned char[16]’ [-Werror=array-bounds]
  874 |     pPicture->pSourcePict->type = SourcePictTypeSolidFill;
      |                          ^~
 render/picture.c:868:45: note: object of size 16 allocated by ‘malloc’
  868 |     pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictSolidFill));
      |                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 render/picture.c: In function ‘CreateLinearGradientPicture’:
 render/picture.c:906:26: error: array subscript ‘union _SourcePict[0]’ is partly outside array bounds of ‘unsigned char[32]’ [-Werror=array-bounds]
  906 |     pPicture->pSourcePict->linear.type = SourcePictTypeLinear;
      |                          ^~
 render/picture.c:899:45: note: object of size 32 allocated by ‘malloc’
  899 |     pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictLinearGradient));
      |                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 render/picture.c: In function ‘CreateConicalGradientPicture’:
 render/picture.c:989:26: error: array subscript ‘union _SourcePict[0]’ is partly outside array bounds of ‘unsigned char[32]’ [-Werror=array-bounds]
  989 |     pPicture->pSourcePict->conical.type = SourcePictTypeConical;
      |                          ^~
 render/picture.c:982:45: note: object of size 32 allocated by ‘malloc’
  982 |     pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictConicalGradient));
      |                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 cc1: some warnings being treated as errors
 ninja: build stopped: subcommand failed.

This is because gcc 12 has become stricter and raises a warning now.

Fix the warning/error by allocating enough memory to store the union
struct.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Acked-by: Michel Dänzer <mdaenzer@redhat.com>
Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1256
2022-01-25 16:16:30 +01:00
Błażej Szczygieł 22d5818851 present: Check for NULL to prevent crash
Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1275
Signed-off-by: Błażej Szczygieł <spaz16@wp.pl>
Tested-by: Aaron Plattner <aplattner@nvidia.com>
2022-01-19 10:23:20 -08:00
Olivier Fourdan d1f26c3e75 xwayland: Raise the FD limit to the max
Xwayland may open a fair amount of file descriptors for passing Wayland
buffers, even more so when using the `wl_shm` either for the pointer
cursors or for when GLAMOR is not usable.

As a result, Xwayland may hit the (soft) limit of file descriptors
leading to a Wayland protocol error and the termination of Xwayland.

To mitigate that risk, raise the limit to the maximum (hard) limit of
file descriptors (unless of course the limit was set explicitly from the
command line with "-lf").

Note that for completeness, the Wayland compositor may have to do the
same, otherwise the limit might get reached on the compositor side as
well.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Suggested-by: Simon Ser <contact@emersion.fr>
Acked-by: Michel Dänzer <mdaenzer@redhat.com>
Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1283
2022-01-18 11:10:11 +01:00
Michel Dänzer 50b4a70def xwayland/glx: Flip order of sRGB & non-sRGB fbconfigs
The sRGB ones came before the non-sRGB ones, which broke some clients.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1225
Acked-by: Olivier Fourdan <ofourdan@redhat.com>
2022-01-14 18:16:01 +01:00
Michel Dänzer 288ec0e046 xwayland/present: Run fallback timer callback after more than a second
If the Wayland compositor doesn't send a pending frame event, e.g.
because the Wayland surface isn't visible anywhere, it could happen that
the timer kept getting pushed back and never fired. This resulted in an
enormous list of pending vblank events, which could take minutes to
process when the frame event finally arrived.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1110
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
Tested-by: Jaap Buurman <jaapbuurman@gmail.com>
2021-12-24 19:06:47 +01:00
Jocelyn Falempe 38291fa86c xf86/logind: fix missing call to vtenter if the platform device is not paused
If there is one platform device, which is not paused nor resumed,
systemd_logind_vtenter() will never get called.
This break suspend/resume, and switching to VT on system with Nvidia
proprietary driver.
This is a regression introduced by f5bd039633

So now call systemd_logind_vtenter() if there are no paused
platform devices.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1271
Fixes: f5bd0396 - xf86/logind: fix call systemd_logind_vtenter after receiving drm device resume

Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Tested-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2021-12-20 16:57:10 +01:00
Jocelyn Falempe 9c66d910ca xf86/logind: Fix compilation error when built without logind/platform bus
This was introduced by commit 8eb1396d

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1269
Fixes: da9d012a9 - xf86/logind: Fix drm_drop_master before vt_reldisp

Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2021-12-20 16:56:14 +01:00
Matthieu Herrb 5b8817a019 Convert more funcs to use InternalEvent.
This fixes a crash when a DeviceEvent struct converted to
InteralEvent was beeing copied as InternalEvent (and thus
causing out of bounds reads) in ActivateGrabNoDelivery()
in events.c: 3876    *grabinfo->sync.event = *real_event;

Possible fix for https://gitlab.freedesktop.org/xorg/xserver/-/issues/1253

Signed-off-by: Matthieu Herrb <matthieu@herrb.eu>
2021-12-19 20:01:04 +00:00
Povilas Kanapickas 35f0e1ade8 Remove *-config.h.in which were only used by autotools 2021-12-19 10:41:45 +00:00
Adam Jackson f6c070a1ac glx/dri: Filter out fbconfigs that don't have a supported pixmap format
For depth 30 in particular it's not uncommon for the DDX to not have
a configured pixmap format. Since the client expects to back both
GLXPixmaps and GLXPbuffers with X Pixmaps, trying to use an x2rgb10
fbconfig would fail along various paths to CreatePixmap. Filter these
fbconfigs out so the client can't ask for something that we know won't
work.
2021-12-19 10:26:03 +00:00
Michel Dänzer cbe15842f5 Fix spelling of Xwayland
There were just 3 outliers, let's try to prevent them from spreading.
2021-12-17 16:22:07 +00:00
Andrea Monaco 32e89ebaa9 hw/xfree86/os-support/solaris/sun_vid.c: Fix error message
This is minor, but that error message says a wrong function name.

Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2021-12-16 13:52:15 -08:00
Sam James 6c1a1fcc4b hw/xfree86: fix sbus build for SPARC
Initially reported downstream in Gentoo. Manifests with errors like:
```
gnu/bin/ld: hw/xfree86/common/libxorg_common.a(xf86fbBus.c.o): in function `xf86ClaimFbSlot':
xf86fbBus.c:(.text+0x20): undefined reference to `sbusSlotClaimed'
/usr/lib/gcc/sparc-unknown-linux-gnu/11.2.0/../../../../sparc-unknown-linux-gnu/bin/ld: xf86fbBus.c:(.text+0x2c): undefined reference to `sbusSlotClaimed'
```

While we use the headers in meson.build, we don't reference xf86sbusBus.c
which defines the missing symbols like sbusSlotClaimed.

Bug: https://bugs.gentoo.org/828513
Signed-off-by: Sam James <sam@gentoo.org>
2021-12-14 16:00:39 +00:00
Povilas Kanapickas ebce7e2d80 render: Fix out of bounds access in SProcRenderCompositeGlyphs()
ZDI-CAN-14192, CVE-2021-4008

This vulnerability was discovered and the fix was suggested by:
Jan-Niklas Sohn working with Trend Micro Zero Day Initiative

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2021-12-14 15:00:03 +02:00
Povilas Kanapickas 6c4c530107 Xext: Fix out of bounds access in SProcScreenSaverSuspend()
ZDI-CAN-14951, CVE-2021-4010

This vulnerability was discovered and the fix was suggested by:
Jan-Niklas Sohn working with Trend Micro Zero Day Initiative

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2021-12-14 15:00:02 +02:00
Povilas Kanapickas b519675009 xfixes: Fix out of bounds access in *ProcXFixesCreatePointerBarrier()
ZDI-CAN-14950, CVE-2021-4009

This vulnerability was discovered and the fix was suggested by:
Jan-Niklas Sohn working with Trend Micro Zero Day Initiative

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2021-12-14 15:00:01 +02:00