fix-xserver.patch

diff --git a/pkgs/servers/x11/xorg/overrides.nix b/pkgs/servers/x11/xorg/overrides.nix
index 75a17a9ef32..36ea65f01ef 100644
--- a/pkgs/servers/x11/xorg/overrides.nix
+++ b/pkgs/servers/x11/xorg/overrides.nix
@@ -822,6 +822,11 @@ self: super:
             url = "https://gitlab.freedesktop.org/xorg/xserver/-/commit/dd8caf39e9e15d8f302e54045dd08d8ebf1025dc.diff";
             sha256 = "rBiiXQRreMvexW9vOKblcfCYzul+9La01EAhir4FND8=";
           })
+          (fetchpatch {
+            name = "fix-looking-glass-crash";
+            url = "https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/841/diffs.patch";
+            sha256 = "sha256-RVkllnh7K17uD5IV+yt6mVNJa4k/g6YMc13alXJ+Qik=";
+          })
         ];
         buildInputs = commonBuildInputs ++ [ libdrm mesa ];
         propagatedBuildInputs = attrs.propagatedBuildInputs or [] ++ [ libpciaccess libepoxy ] ++ commonPropagatedBuildInputs ++ lib.optionals stdenv.isLinux [