Signed-off-by: Sakib Sajal <sakib.sa...@windriver.com> --- meta/recipes-devtools/qemu/qemu.inc | 1 + .../qemu/qemu/CVE-2022-26354.patch | 59 +++++++++++++++++++ 2 files changed, 60 insertions(+) create mode 100644 meta/recipes-devtools/qemu/qemu/CVE-2022-26354.patch
diff --git a/meta/recipes-devtools/qemu/qemu.inc b/meta/recipes-devtools/qemu/qemu.inc index aa372810ce..934e5ee932 100644 --- a/meta/recipes-devtools/qemu/qemu.inc +++ b/meta/recipes-devtools/qemu/qemu.inc @@ -77,6 +77,7 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \ file://CVE-2021-20196_2.patch \ file://CVE-2021-4145_1.patch \ file://CVE-2021-4145_2.patch \ + file://CVE-2022-26354.patch \ " UPSTREAM_CHECK_REGEX = "qemu-(?P<pver>\d+(\.\d+)+)\.tar" diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2022-26354.patch b/meta/recipes-devtools/qemu/qemu/CVE-2022-26354.patch new file mode 100644 index 0000000000..ae8c490177 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2022-26354.patch @@ -0,0 +1,59 @@ +From 1c53fa2c574ebacf8bb20c73e35ae4b96dcf0476 Mon Sep 17 00:00:00 2001 +From: Stefano Garzarella <sgarz...@redhat.com> +Date: Mon, 28 Feb 2022 10:50:58 +0100 +Subject: [PATCH 3/3] vhost-vsock: detach the virqueue element in case of error + +In vhost_vsock_common_send_transport_reset(), if an element popped from +the virtqueue is invalid, we should call virtqueue_detach_element() to +detach it from the virtqueue before freeing its memory. + +Fixes: fc0b9b0e1c ("vhost-vsock: add virtio sockets device") +Fixes: CVE-2022-26354 +Cc: qemu-sta...@nongnu.org +Reported-by: VictorV <vv474172...@gmail.com> +Signed-off-by: Stefano Garzarella <sgarz...@redhat.com> +Message-Id: <20220228095058.27899-1-sgarz...@redhat.com> +Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com> +Reviewed-by: Michael S. Tsirkin <m...@redhat.com> +Signed-off-by: Michael S. Tsirkin <m...@redhat.com> + +Upstream-Status: Backport [8d1b247f3748ac4078524130c6d7ae42b6140aaf] +Signed-off-by: Sakib Sajal <sakib.sa...@windriver.com> +--- + hw/virtio/vhost-vsock-common.c | 10 +++++++--- + 1 file changed, 7 insertions(+), 3 deletions(-) + +diff --git a/hw/virtio/vhost-vsock-common.c b/hw/virtio/vhost-vsock-common.c +index 5b2ebf349..45ea58c3a 100644 +--- a/hw/virtio/vhost-vsock-common.c ++++ b/hw/virtio/vhost-vsock-common.c +@@ -129,19 +129,23 @@ static void vhost_vsock_common_send_transport_reset(VHostVSockCommon *vvc) + if (elem->out_num) { + error_report("invalid vhost-vsock event virtqueue element with " + "out buffers"); +- goto out; ++ goto err; + } + + if (iov_from_buf(elem->in_sg, elem->in_num, 0, + &event, sizeof(event)) != sizeof(event)) { + error_report("vhost-vsock event virtqueue element is too short"); +- goto out; ++ goto err; + } + + virtqueue_push(vq, elem, sizeof(event)); + virtio_notify(VIRTIO_DEVICE(vvc), vq); + +-out: ++ g_free(elem); ++ return; ++ ++err: ++ virtqueue_detach_element(vq, elem, 0); + g_free(elem); + } + +-- +2.33.0 + -- 2.33.0
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