diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2021-3416_1.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2021-3416_1.patch | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_1.patch b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_1.patch deleted file mode 100644 index 5bacd67481..0000000000 --- a/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_1.patch +++ /dev/null @@ -1,177 +0,0 @@ -From 4b1988a29d67277d6c8ce1df52975f5616592913 Mon Sep 17 00:00:00 2001 -From: Jason Wang <jasowang@redhat.com> -Date: Wed, 24 Feb 2021 11:44:36 +0800 -Subject: [PATCH 01/10] net: introduce qemu_receive_packet() -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Some NIC supports loopback mode and this is done by calling -nc->info->receive() directly which in fact suppresses the effort of -reentrancy check that is done in qemu_net_queue_send(). - -Unfortunately we can't use qemu_net_queue_send() here since for -loopback there's no sender as peer, so this patch introduce a -qemu_receive_packet() which is used for implementing loopback mode -for a NIC with this check. - -NIC that supports loopback mode will be converted to this helper. - -This is intended to address CVE-2021-3416. - -Cc: Prasad J Pandit <ppandit@redhat.com> -Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> -Cc: qemu-stable@nongnu.org -Signed-off-by: Jason Wang <jasowang@redhat.com> - -Upstream-Status: Backport [705df5466c98f3efdd2b68d3b31dad86858acad7] -CVE: CVE-2021-3416 - -Signed-off-by: Sakib Sajal <sakib.sajal@windriver.com> ---- - include/net/net.h | 5 +++++ - include/net/queue.h | 8 ++++++++ - net/net.c | 38 +++++++++++++++++++++++++++++++------- - net/queue.c | 22 ++++++++++++++++++++++ - 4 files changed, 66 insertions(+), 7 deletions(-) - -diff --git a/include/net/net.h b/include/net/net.h -index 778fc787c..03f058ecb 100644 ---- a/include/net/net.h -+++ b/include/net/net.h -@@ -143,12 +143,17 @@ void *qemu_get_nic_opaque(NetClientState *nc); - void qemu_del_net_client(NetClientState *nc); - typedef void (*qemu_nic_foreach)(NICState *nic, void *opaque); - void qemu_foreach_nic(qemu_nic_foreach func, void *opaque); -+int qemu_can_receive_packet(NetClientState *nc); - int qemu_can_send_packet(NetClientState *nc); - ssize_t qemu_sendv_packet(NetClientState *nc, const struct iovec *iov, - int iovcnt); - ssize_t qemu_sendv_packet_async(NetClientState *nc, const struct iovec *iov, - int iovcnt, NetPacketSent *sent_cb); - ssize_t qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size); -+ssize_t qemu_receive_packet(NetClientState *nc, const uint8_t *buf, int size); -+ssize_t qemu_receive_packet_iov(NetClientState *nc, -+ const struct iovec *iov, -+ int iovcnt); - ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size); - ssize_t qemu_send_packet_async(NetClientState *nc, const uint8_t *buf, - int size, NetPacketSent *sent_cb); -diff --git a/include/net/queue.h b/include/net/queue.h -index c0269bb1d..9f2f289d7 100644 ---- a/include/net/queue.h -+++ b/include/net/queue.h -@@ -55,6 +55,14 @@ void qemu_net_queue_append_iov(NetQueue *queue, - - void qemu_del_net_queue(NetQueue *queue); - -+ssize_t qemu_net_queue_receive(NetQueue *queue, -+ const uint8_t *data, -+ size_t size); -+ -+ssize_t qemu_net_queue_receive_iov(NetQueue *queue, -+ const struct iovec *iov, -+ int iovcnt); -+ - ssize_t qemu_net_queue_send(NetQueue *queue, - NetClientState *sender, - unsigned flags, -diff --git a/net/net.c b/net/net.c -index 6a2c3d956..5e15e5d27 100644 ---- a/net/net.c -+++ b/net/net.c -@@ -528,6 +528,17 @@ int qemu_set_vnet_be(NetClientState *nc, bool is_be) - #endif - } - -+int qemu_can_receive_packet(NetClientState *nc) -+{ -+ if (nc->receive_disabled) { -+ return 0; -+ } else if (nc->info->can_receive && -+ !nc->info->can_receive(nc)) { -+ return 0; -+ } -+ return 1; -+} -+ - int qemu_can_send_packet(NetClientState *sender) - { - int vm_running = runstate_is_running(); -@@ -540,13 +551,7 @@ int qemu_can_send_packet(NetClientState *sender) - return 1; - } - -- if (sender->peer->receive_disabled) { -- return 0; -- } else if (sender->peer->info->can_receive && -- !sender->peer->info->can_receive(sender->peer)) { -- return 0; -- } -- return 1; -+ return qemu_can_receive_packet(sender->peer); - } - - static ssize_t filter_receive_iov(NetClientState *nc, -@@ -679,6 +684,25 @@ ssize_t qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size) - return qemu_send_packet_async(nc, buf, size, NULL); - } - -+ssize_t qemu_receive_packet(NetClientState *nc, const uint8_t *buf, int size) -+{ -+ if (!qemu_can_receive_packet(nc)) { -+ return 0; -+ } -+ -+ return qemu_net_queue_receive(nc->incoming_queue, buf, size); -+} -+ -+ssize_t qemu_receive_packet_iov(NetClientState *nc, const struct iovec *iov, -+ int iovcnt) -+{ -+ if (!qemu_can_receive_packet(nc)) { -+ return 0; -+ } -+ -+ return qemu_net_queue_receive_iov(nc->incoming_queue, iov, iovcnt); -+} -+ - ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size) - { - return qemu_send_packet_async_with_flags(nc, QEMU_NET_PACKET_FLAG_RAW, -diff --git a/net/queue.c b/net/queue.c -index 19e32c80f..c872d51df 100644 ---- a/net/queue.c -+++ b/net/queue.c -@@ -182,6 +182,28 @@ static ssize_t qemu_net_queue_deliver_iov(NetQueue *queue, - return ret; - } - -+ssize_t qemu_net_queue_receive(NetQueue *queue, -+ const uint8_t *data, -+ size_t size) -+{ -+ if (queue->delivering) { -+ return 0; -+ } -+ -+ return qemu_net_queue_deliver(queue, NULL, 0, data, size); -+} -+ -+ssize_t qemu_net_queue_receive_iov(NetQueue *queue, -+ const struct iovec *iov, -+ int iovcnt) -+{ -+ if (queue->delivering) { -+ return 0; -+ } -+ -+ return qemu_net_queue_deliver_iov(queue, NULL, 0, iov, iovcnt); -+} -+ - ssize_t qemu_net_queue_send(NetQueue *queue, - NetClientState *sender, - unsigned flags, --- -2.29.2 - |