xserver-xorg: Fix for CVE-2024-31080 and CVE-2024-31081

Upstream-Status: Backport from
https://gitlab.freedesktop.org/xorg/xserver/-/commit/96798fc1967491c80a4d0c8d9e0a80586cb2152b
& https://gitlab.freedesktop.org/xorg/xserver/-/commit/3e77295f888c67fc7645db5d0c00926a29ffecee

Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

3 files changed, 98 insertions, 0 deletions

diff --git a/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2024-31080.patch b/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2024-31080.patch
new file mode 100644
index 0000000000..40296903cd
--- /dev/null
+++ b/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2024-31080.patch
@@ -0,0 +1,49 @@
+From 96798fc1967491c80a4d0c8d9e0a80586cb2152b Mon Sep 17 00:00:00 2001
+From: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date: Fri, 22 Mar 2024 18:51:45 -0700
+Subject: [PATCH] Xi: ProcXIGetSelectedEvents needs to use unswapped length to
+ send reply
+
+CVE-2024-31080
+
+Reported-by: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=69762
+Fixes: 53e821ab4 ("Xi: add request processing for XIGetSelectedEvents.")
+Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1463>
+
+Upstream-Status: Backport [https://gitlab.freedesktop.org/xorg/xserver/-/commit/96798fc1967491c80a4d0c8d9e0a80586cb2152b]
+CVE: CVE-2024-31080
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ Xi/xiselectev.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/Xi/xiselectev.c b/Xi/xiselectev.c
+index edcb8a0d36..ac14949871 100644
+--- a/Xi/xiselectev.c
++++ b/Xi/xiselectev.c
+@@ -349,6 +349,7 @@ ProcXIGetSelectedEvents(ClientPtr client)
+     InputClientsPtr others = NULL;
+     xXIEventMask *evmask = NULL;
+     DeviceIntPtr dev;
++    uint32_t length;
+ 
+     REQUEST(xXIGetSelectedEventsReq);
+     REQUEST_SIZE_MATCH(xXIGetSelectedEventsReq);
+@@ -418,10 +419,12 @@ ProcXIGetSelectedEvents(ClientPtr client)
+         }
+     }
+ 
++    /* save the value before SRepXIGetSelectedEvents swaps it */
++    length = reply.length;
+     WriteReplyToClient(client, sizeof(xXIGetSelectedEventsReply), &reply);
+ 
+     if (reply.num_masks)
+-        WriteToClient(client, reply.length * 4, buffer);
++        WriteToClient(client, length * 4, buffer);
+ 
+     free(buffer);
+     return Success;
+-- 
+GitLab
+
diff --git a/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2024-31081.patch b/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2024-31081.patch
new file mode 100644
index 0000000000..4380004700
--- /dev/null
+++ b/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2024-31081.patch
@@ -0,0 +1,47 @@
+From 3e77295f888c67fc7645db5d0c00926a29ffecee Mon Sep 17 00:00:00 2001
+From: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date: Fri, 22 Mar 2024 18:56:27 -0700
+Subject: [PATCH] Xi: ProcXIPassiveGrabDevice needs to use unswapped length to
+ send reply
+
+CVE-2024-31081
+
+Fixes: d220d6907 ("Xi: add GrabButton and GrabKeysym code.")
+Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1463>
+
+Upstream-Status: Backport [https://gitlab.freedesktop.org/xorg/xserver/-/commit/3e77295f888c67fc7645db5d0c00926a29ffecee]
+CVE: CVE-2024-31081
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ Xi/xipassivegrab.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/Xi/xipassivegrab.c b/Xi/xipassivegrab.c
+index c9ac2f8553..896233bec2 100644
+--- a/Xi/xipassivegrab.c
++++ b/Xi/xipassivegrab.c
+@@ -93,6 +93,7 @@ ProcXIPassiveGrabDevice(ClientPtr client)
+     GrabParameters param;
+     void *tmp;
+     int mask_len;
++    uint32_t length;
+ 
+     REQUEST(xXIPassiveGrabDeviceReq);
+     REQUEST_FIXED_SIZE(xXIPassiveGrabDeviceReq,
+@@ -247,9 +248,11 @@ ProcXIPassiveGrabDevice(ClientPtr client)
+         }
+     }
+ 
++    /* save the value before SRepXIPassiveGrabDevice swaps it */
++    length = rep.length;
+     WriteReplyToClient(client, sizeof(rep), &rep);
+     if (rep.num_modifiers)
+-        WriteToClient(client, rep.length * 4, modifiers_failed);
++        WriteToClient(client, length * 4, modifiers_failed);
+ 
+  out:
+     free(modifiers_failed);
+-- 
+GitLab
+
diff --git a/meta/recipes-graphics/xorg-xserver/xserver-xorg_21.1.8.bb b/meta/recipes-graphics/xorg-xserver/xserver-xorg_21.1.8.bb
index e62babd4cb..b9eed92103 100644
--- a/meta/recipes-graphics/xorg-xserver/xserver-xorg_21.1.8.bb
+++ b/meta/recipes-graphics/xorg-xserver/xserver-xorg_21.1.8.bb
@@ -16,6 +16,8 @@ SRC_URI += "file://0001-xf86pciBus.c-use-Intel-ddx-only-for-pre-gen4-hardwar.pat
            file://CVE-2024-21886-2.patch \
            file://CVE-2024-0408.patch \
            file://CVE-2024-0409.patch \
+           file://CVE-2024-31080.patch \
+           file://CVE-2024-31081.patch \
            "
 SRC_URI[sha256sum] = "38aadb735650c8024ee25211c190bf8aad844c5f59632761ab1ef4c4d5aeb152"