new file mode 100644
@@ -0,0 +1,66 @@
+From c1ff84bef2569b4ba4be59323cf575d1798ba9be Mon Sep 17 00:00:00 2001
+From: Olivier Fourdan <ofourdan@redhat.com>
+Date: Tue, 17 Dec 2024 15:19:45 +0100
+Subject: [PATCH] composite: Handle failure to redirect in compRedirectWindow()
+
+The function compCheckRedirect() may fail if it cannot allocate the
+backing pixmap.
+
+In that case, compRedirectWindow() will return a BadAlloc error.
+
+However that failure code path will shortcut the validation of the
+window tree marked just before, which leaves the validate data partly
+initialized.
+
+That causes a use of uninitialized pointer later.
+
+The fix is to not shortcut the call to compHandleMarkedWindows() even in
+the case of compCheckRedirect() returning an error.
+
+CVE-2025-26599, ZDI-CAN-25851
+
+This vulnerability was discovered by:
+Jan-Niklas Sohn working with Trend Micro Zero Day Initiative
+
+Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
+Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
+Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1828>
+
+Upstream-Status: Backport [https://gitlab.freedesktop.org/xorg/xserver/-/commit/c1ff84be]
+CVE: CVE-2025-26599
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ composite/compalloc.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/composite/compalloc.c b/composite/compalloc.c
+index eaabf0d..0bbbc55 100644
+--- a/composite/compalloc.c
++++ b/composite/compalloc.c
+@@ -140,6 +140,7 @@ compRedirectWindow(ClientPtr pClient, WindowPtr pWin, int update)
+ CompScreenPtr cs = GetCompScreen(pWin->drawable.pScreen);
+ WindowPtr pLayerWin;
+ Bool anyMarked = FALSE;
++ int status = Success;
+
+ if (pWin == cs->pOverlayWin) {
+ return Success;
+@@ -218,13 +219,13 @@ compRedirectWindow(ClientPtr pClient, WindowPtr pWin, int update)
+
+ if (!compCheckRedirect(pWin)) {
+ FreeResource(ccw->id, RT_NONE);
+- return BadAlloc;
++ status = BadAlloc;
+ }
+
+ if (anyMarked)
+ compHandleMarkedWindows(pWin, pLayerWin);
+
+- return Success;
++ return status;
+ }
+
+ void
+--
+2.25.1
+
new file mode 100644
@@ -0,0 +1,129 @@
+From b07192a8bedb90b039dc0f70ae69daf047ff9598 Mon Sep 17 00:00:00 2001
+From: Olivier Fourdan <ofourdan@redhat.com>
+Date: Mon, 13 Jan 2025 16:09:43 +0100
+Subject: [PATCH] composite: initialize border clip even when pixmap alloc
+ fails
+
+If it fails to allocate the pixmap, the function compAllocPixmap() would
+return early and leave the borderClip region uninitialized, which may
+lead to the use of uninitialized value as reported by valgrind:
+
+ Conditional jump or move depends on uninitialised value(s)
+ at 0x4F9B33: compClipNotify (compwindow.c:317)
+ by 0x484FC9: miComputeClips (mivaltree.c:476)
+ by 0x48559A: miValidateTree (mivaltree.c:679)
+ by 0x4F0685: MapWindow (window.c:2693)
+ by 0x4A344A: ProcMapWindow (dispatch.c:922)
+ by 0x4A25B5: Dispatch (dispatch.c:560)
+ by 0x4B082A: dix_main (main.c:282)
+ by 0x429233: main (stubmain.c:34)
+ Uninitialised value was created by a heap allocation
+ at 0x4841866: malloc (vg_replace_malloc.c:446)
+ by 0x4F47BC: compRedirectWindow (compalloc.c:171)
+ by 0x4FA8AD: compCreateWindow (compwindow.c:592)
+ by 0x4EBB89: CreateWindow (window.c:925)
+ by 0x4A2E6E: ProcCreateWindow (dispatch.c:768)
+ by 0x4A25B5: Dispatch (dispatch.c:560)
+ by 0x4B082A: dix_main (main.c:282)
+ by 0x429233: main (stubmain.c:34)
+
+ Conditional jump or move depends on uninitialised value(s)
+ at 0x48EEDBC: pixman_region_translate (pixman-region.c:2233)
+ by 0x4F9255: RegionTranslate (regionstr.h:312)
+ by 0x4F9B7E: compClipNotify (compwindow.c:319)
+ by 0x484FC9: miComputeClips (mivaltree.c:476)
+ by 0x48559A: miValidateTree (mivaltree.c:679)
+ by 0x4F0685: MapWindow (window.c:2693)
+ by 0x4A344A: ProcMapWindow (dispatch.c:922)
+ by 0x4A25B5: Dispatch (dispatch.c:560)
+ by 0x4B082A: dix_main (main.c:282)
+ by 0x429233: main (stubmain.c:34)
+ Uninitialised value was created by a heap allocation
+ at 0x4841866: malloc (vg_replace_malloc.c:446)
+ by 0x4F47BC: compRedirectWindow (compalloc.c:171)
+ by 0x4FA8AD: compCreateWindow (compwindow.c:592)
+ by 0x4EBB89: CreateWindow (window.c:925)
+ by 0x4A2E6E: ProcCreateWindow (dispatch.c:768)
+ by 0x4A25B5: Dispatch (dispatch.c:560)
+ by 0x4B082A: dix_main (main.c:282)
+ by 0x429233: main (stubmain.c:34)
+
+ Conditional jump or move depends on uninitialised value(s)
+ at 0x48EEE33: UnknownInlinedFun (pixman-region.c:2241)
+ by 0x48EEE33: pixman_region_translate (pixman-region.c:2225)
+ by 0x4F9255: RegionTranslate (regionstr.h:312)
+ by 0x4F9B7E: compClipNotify (compwindow.c:319)
+ by 0x484FC9: miComputeClips (mivaltree.c:476)
+ by 0x48559A: miValidateTree (mivaltree.c:679)
+ by 0x4F0685: MapWindow (window.c:2693)
+ by 0x4A344A: ProcMapWindow (dispatch.c:922)
+ by 0x4A25B5: Dispatch (dispatch.c:560)
+ by 0x4B082A: dix_main (main.c:282)
+ by 0x429233: main (stubmain.c:34)
+ Uninitialised value was created by a heap allocation
+ at 0x4841866: malloc (vg_replace_malloc.c:446)
+ by 0x4F47BC: compRedirectWindow (compalloc.c:171)
+ by 0x4FA8AD: compCreateWindow (compwindow.c:592)
+ by 0x4EBB89: CreateWindow (window.c:925)
+ by 0x4A2E6E: ProcCreateWindow (dispatch.c:768)
+ by 0x4A25B5: Dispatch (dispatch.c:560)
+ by 0x4B082A: dix_main (main.c:282)
+ by 0x429233: main (stubmain.c:34)
+
+Fix compAllocPixmap() to initialize the border clip even if the creation
+of the backing pixmap has failed, to avoid depending later on
+uninitialized border clip values.
+
+Related to CVE-2025-26599, ZDI-CAN-25851
+
+Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
+Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
+Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1828>
+
+Upstream-Status: Backport [https://gitlab.freedesktop.org/xorg/xserver/-/commit/b07192a8]
+CVE: CVE-2025-26599
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ composite/compalloc.c | 11 ++++++++---
+ 1 file changed, 8 insertions(+), 3 deletions(-)
+
+diff --git a/composite/compalloc.c b/composite/compalloc.c
+index 7cf7351e00..4a1243170d 100644
+--- a/composite/compalloc.c
++++ b/composite/compalloc.c
+@@ -605,9 +605,12 @@ compAllocPixmap(WindowPtr pWin)
+ int h = pWin->drawable.height + (bw << 1);
+ PixmapPtr pPixmap = compNewPixmap(pWin, x, y, w, h);
+ CompWindowPtr cw = GetCompWindow(pWin);
++ Bool status;
+
+- if (!pPixmap)
+- return FALSE;
++ if (!pPixmap) {
++ status = FALSE;
++ goto out;
++ }
+ if (cw->update == CompositeRedirectAutomatic)
+ pWin->redirectDraw = RedirectDrawAutomatic;
+ else
+@@ -621,14 +624,16 @@ compAllocPixmap(WindowPtr pWin)
+ DamageRegister(&pWin->drawable, cw->damage);
+ cw->damageRegistered = TRUE;
+ }
++ status = TRUE;
+
++out:
+ /* Make sure our borderClip is up to date */
+ RegionUninit(&cw->borderClip);
+ RegionCopy(&cw->borderClip, &pWin->borderClip);
+ cw->borderClipX = pWin->drawable.x;
+ cw->borderClipY = pWin->drawable.y;
+
+- return TRUE;
++ return status;
+ }
+
+ void
+--
+GitLab
+
@@ -17,6 +17,8 @@ SRC_URI = "https://www.x.org/archive/individual/xserver/xwayland-${PV}.tar.xz \
file://CVE-2025-26596.patch \
file://CVE-2025-26597.patch \
file://CVE-2025-26598.patch \
+ file://CVE-2025-26599-1.patch \
+ file://CVE-2025-26599-2.patch \
"
SRC_URI[sha256sum] = "33ec7ff2687a59faaa52b9b09aa8caf118e7ecb6aed8953f526a625ff9f4bd90"