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- CVE: CVE-2021-3544
- Upstream-Status: Backport
- Signed-off-by: Ross Burton <ross.burton@arm.com>
- From 63736af5a6571d9def93769431e0d7e38c6677bf Mon Sep 17 00:00:00 2001
- From: Li Qiang <liq3ea@163.com>
- Date: Sat, 15 May 2021 20:04:01 -0700
- Subject: [PATCH 6/7] vhost-user-gpu: fix memory leak in
- 'virgl_resource_attach_backing' (CVE-2021-3544)
- MIME-Version: 1.0
- Content-Type: text/plain; charset=UTF-8
- Content-Transfer-Encoding: 8bit
- If 'virgl_renderer_resource_attach_iov' failed, the 'res_iovs' will
- be leaked.
- Fixes: CVE-2021-3544
- Reported-by: Li Qiang <liq3ea@163.com>
- virtio-gpu fix: 33243031da ("virtio-gpu-3d: fix memory leak
- in resource attach backing")
- Signed-off-by: Li Qiang <liq3ea@163.com>
- Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
- Message-Id: <20210516030403.107723-7-liq3ea@163.com>
- Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
- ---
- contrib/vhost-user-gpu/virgl.c | 5 ++++-
- 1 file changed, 4 insertions(+), 1 deletion(-)
- diff --git a/contrib/vhost-user-gpu/virgl.c b/contrib/vhost-user-gpu/virgl.c
- index c669d73a1d..a16a311d80 100644
- --- a/contrib/vhost-user-gpu/virgl.c
- +++ b/contrib/vhost-user-gpu/virgl.c
- @@ -287,8 +287,11 @@ virgl_resource_attach_backing(VuGpu *g,
- return;
- }
-
- - virgl_renderer_resource_attach_iov(att_rb.resource_id,
- + ret = virgl_renderer_resource_attach_iov(att_rb.resource_id,
- res_iovs, att_rb.nr_entries);
- + if (ret != 0) {
- + g_free(res_iovs);
- + }
- }
-
- static void
- --
- 2.25.1
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