diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2021-3416_4.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2021-3416_4.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_4.patch b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_4.patch new file mode 100644 index 0000000000..e14f37735d --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_4.patch @@ -0,0 +1,43 @@ +From 9ac5345344b75995bc96d171eaa5dc8d26bf0e21 Mon Sep 17 00:00:00 2001 +From: Jason Wang <jasowang@redhat.com> +Date: Wed, 24 Feb 2021 13:00:01 +0800 +Subject: [PATCH 04/10] msf2-mac: 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: Jason Wang <jasowang@redhat.com> + +Upstream-Status: Backport [26194a58f4eb83c5bdf4061a1628508084450ba1] +CVE: CVE-2021-3416 + +Signed-off-by: Sakib Sajal <sakib.sajal@windriver.com> +--- + hw/net/msf2-emac.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/hw/net/msf2-emac.c b/hw/net/msf2-emac.c +index 32ba9e841..3e6206044 100644 +--- a/hw/net/msf2-emac.c ++++ b/hw/net/msf2-emac.c +@@ -158,7 +158,7 @@ static void msf2_dma_tx(MSF2EmacState *s) + * R_CFG1 bit 0 is set. + */ + if (s->regs[R_CFG1] & R_CFG1_LB_EN_MASK) { +- nc->info->receive(nc, buf, size); ++ qemu_receive_packet(nc, buf, size); + } else { + qemu_send_packet(nc, buf, size); + } +-- +2.29.2 + |