virglrenderer: fix multiple CVEsanujm/zeus2

fix these CVE:
CVE-2019-18390
CVE-2019-18391
CVE-2020-8002

Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/meta/recipes-graphics/virglrenderer/virglrenderer/CVE-2019-18391.patch b/meta/recipes-graphics/virglrenderer/virglrenderer/CVE-2019-18391.patch
new file mode 100644
index 0000000000..cc641d8293
--- /dev/null
+++ b/meta/recipes-graphics/virglrenderer/virglrenderer/CVE-2019-18391.patch
@@ -0,0 +1,51 @@
+From 2abeb1802e3c005b17a7123e382171b3fb665971 Mon Sep 17 00:00:00 2001
+From: Gert Wollny <gert.wollny@collabora.com>
+Date: Tue, 8 Oct 2019 17:27:01 +0200
+Subject: [PATCH] vrend: check that the transfer iov holds enough data for the
+ data upload
+
+Closes #140
+
+Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
+Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
+
+Upstream-Status: Backport 
+[https://gitlab.freedesktop.org/virgl/virglrenderer/commit/2abeb1802e3c005b17a7123e382171b3fb665971]
+CVE: CVE-2019-18391
+Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
+---
+ src/vrend_renderer.c | 11 +++++++++--
+ 1 file changed, 9 insertions(+), 2 deletions(-)
+
+diff --git a/src/vrend_renderer.c b/src/vrend_renderer.c
+index 694e1d0e..fe23846b 100644
+--- a/src/vrend_renderer.c
++++ b/src/vrend_renderer.c
+@@ -7005,15 +7005,22 @@ static int vrend_renderer_transfer_write_iov(struct vrend_context *ctx,
+             invert = true;
+       }
+ 
++      send_size = util_format_get_nblocks(res->base.format, info->box->width,
++                                          info->box->height) * elsize;
++      if (res->target == GL_TEXTURE_3D ||
++          res->target == GL_TEXTURE_2D_ARRAY ||
++          res->target == GL_TEXTURE_CUBE_MAP_ARRAY)
++          send_size *= info->box->depth;
++
+       if (need_temp) {
+-         send_size = util_format_get_nblocks(res->base.format, info->box->width,
+-                                             info->box->height) * elsize * info->box->depth;
+          data = malloc(send_size);
+          if (!data)
+             return ENOMEM;
+          read_transfer_data(iov, num_iovs, data, res->base.format, info->offset,
+                             stride, layer_stride, info->box, invert);
+       } else {
++         if (send_size > iov[0].iov_len - info->offset)
++            return EINVAL;
+          data = (char*)iov[0].iov_base + info->offset;
+       }
+ 
+-- 
+2.24.1
+