diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/0004-vhost-user-gpu-fix-memory-leak-while-calling-vg_reso.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/0004-vhost-user-gpu-fix-memory-leak-while-calling-vg_reso.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/0004-vhost-user-gpu-fix-memory-leak-while-calling-vg_reso.patch b/meta/recipes-devtools/qemu/qemu/0004-vhost-user-gpu-fix-memory-leak-while-calling-vg_reso.patch new file mode 100644 index 0000000000..9fc2fafe1d --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/0004-vhost-user-gpu-fix-memory-leak-while-calling-vg_reso.patch @@ -0,0 +1,50 @@ +CVE: CVE-2021-3544 +Upstream-Status: Backport +Signed-off-by: Ross Burton <ross.burton@arm.com> + +From b7afebcf9e6ecf3cf9b5a9b9b731ed04bca6aa3e Mon Sep 17 00:00:00 2001 +From: Li Qiang <liq3ea@163.com> +Date: Sat, 15 May 2021 20:03:59 -0700 +Subject: [PATCH 4/7] vhost-user-gpu: fix memory leak while calling + 'vg_resource_unref' (CVE-2021-3544) +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +If the guest trigger following sequences, the attach_backing will be leaked: + + vg_resource_create_2d + vg_resource_attach_backing + vg_resource_unref + +This patch fix this by freeing 'res->iov' in vg_resource_destroy. + +Fixes: CVE-2021-3544 +Reported-by: Li Qiang <liq3ea@163.com> +virtio-gpu fix: 5e8e3c4c75 ("virtio-gpu: fix resource leak +in virgl_cmd_resource_unref") + +Reviewed-by: Prasad J Pandit <pjp@fedoraproject.org> +Signed-off-by: Li Qiang <liq3ea@163.com> +Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> +Message-Id: <20210516030403.107723-5-liq3ea@163.com> +Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> +--- + contrib/vhost-user-gpu/vhost-user-gpu.c | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/contrib/vhost-user-gpu/vhost-user-gpu.c b/contrib/vhost-user-gpu/vhost-user-gpu.c +index 0437e52b64..770dfad529 100644 +--- a/contrib/vhost-user-gpu/vhost-user-gpu.c ++++ b/contrib/vhost-user-gpu/vhost-user-gpu.c +@@ -400,6 +400,7 @@ vg_resource_destroy(VuGpu *g, + } + + vugbm_buffer_destroy(&res->buffer); ++ g_free(res->iov); + pixman_image_unref(res->image); + QTAILQ_REMOVE(&g->reslist, res, next); + g_free(res); +-- +2.25.1 + |