diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2021-3416_9.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2021-3416_9.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_9.patch b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_9.patch new file mode 100644 index 0000000000..f4a985604e --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_9.patch @@ -0,0 +1,41 @@ +From ecf7e62bb2cb02c9bd40082504ae376f3e19ffd2 Mon Sep 17 00:00:00 2001 +From: Alexander Bulekov <alxndr@bu.edu> +Date: Mon, 1 Mar 2021 14:33:43 -0500 +Subject: [PATCH 09/10] cadence_gem: switch to use qemu_receive_packet() for + loopback +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This patch switches to use qemu_receive_packet() which can detect +reentrancy and return early. + +This is intended to address CVE-2021-3416. + +Cc: Prasad J Pandit <ppandit@redhat.com> +Cc: qemu-stable@nongnu.org +Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> +Signed-off-by: Alexander Bulekov <alxndr@bu.edu> +Signed-off-by: Jason Wang <jasowang@redhat.com> + +Upstream-Status: Backport [e73adfbeec9d4e008630c814759052ed945c3fed] +CVE: CVE-2021-3416 + +Signed-off-by: Sakib Sajal <sakib.sajal@windriver.com> +--- + hw/net/cadence_gem.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +Index: qemu-4.2.0/hw/net/cadence_gem.c +=================================================================== +--- qemu-4.2.0.orig/hw/net/cadence_gem.c ++++ qemu-4.2.0/hw/net/cadence_gem.c +@@ -1225,7 +1225,7 @@ static void gem_transmit(CadenceGEMState + /* Send the packet somewhere */ + if (s->phy_loop || (s->regs[GEM_NWCTRL] & + GEM_NWCTRL_LOCALLOOP)) { +- gem_receive(qemu_get_queue(s->nic), tx_packet, ++ qemu_receive_packet(qemu_get_queue(s->nic), tx_packet, + total_bytes); + } else { + qemu_send_packet(qemu_get_queue(s->nic), tx_packet, |