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xserver/hw/xfree86/modes
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Olivier Fourdan 2961831f11 xfree86: Check for RandR provider functions 
Changing XRandR provider properties if the driver has set no provider
function such as the modesetting driver will cause a NULL pointer
dereference and a crash of the Xorg server.

Related to CVE-2025-49180

This issue was discovered by Nils Emmerich <nemmerich@ernw.de> and
reported by Julian Suleder via ERNW Vulnerability Disclosure.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2024>
(cherry picked from commit 0235121c6a)
2026-01-25 10:40:02 -08:00
..
meson.build xfree86: Move xf86CVTMode() function 2021-08-06 11:29:29 +00:00
xf86Crtc.c treewide: replace xnfcalloc() calls by XNFcallocarray() 2026-01-25 10:39:55 -08:00
xf86Crtc.h xfree86: make xf86RotateCrtcRedisplay public 2022-12-19 23:56:27 -08:00
xf86Cursors.c xfree86: modes: drop unused xf86_driver_has_show_cursor() 2026-01-25 10:39:52 -08:00
xf86DiDGA.c xserver: Unifdef HAVE_CONFIG_H 2017-03-23 13:19:51 -04:00
xf86EdidModes.c treewide: replace xnfcalloc() calls by XNFcallocarray() 2026-01-25 10:39:55 -08:00
xf86gtf.c treewide: replace xnfcalloc() calls by XNFcallocarray() 2026-01-25 10:39:55 -08:00
xf86Modes.c treewide: replace xnfstrdup() calls by XNFstrdup() 2026-01-25 10:39:55 -08:00
xf86Modes.h Eliminate the use of xf86Rename.h 2013-04-24 10:22:20 -07:00
xf86RandR12.c xfree86: Check for RandR provider functions 2026-01-25 10:40:02 -08:00
xf86RandR12.h xfree86: Hook up colormaps and RandR 1.2 gamma code v6 2016-07-28 10:12:05 +09:00
xf86Rotate.c xfree86: make xf86RotateCrtcRedisplay public 2022-12-19 23:56:27 -08:00