diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2021-3416_3.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2021-3416_3.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_3.patch b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_3.patch new file mode 100644 index 0000000000..3fc469e3e3 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_3.patch @@ -0,0 +1,43 @@ +From c041a4da1ff119715e0ccf2d4a7af62568f17b93 Mon Sep 17 00:00:00 2001 +From: Jason Wang <jasowang@redhat.com> +Date: Wed, 24 Feb 2021 12:57:40 +0800 +Subject: [PATCH 03/10] dp8393x: switch to use qemu_receive_packet() for + loopback packet +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 [331d2ac9ea307c990dc86e6493e8f0c48d14bb33] +CVE: CVE-2021-3416 + +Signed-off-by: Sakib Sajal <sakib.sajal@windriver.com> +--- + hw/net/dp8393x.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c +index 205c0decc..533a8304d 100644 +--- a/hw/net/dp8393x.c ++++ b/hw/net/dp8393x.c +@@ -506,7 +506,7 @@ static void dp8393x_do_transmit_packets(dp8393xState *s) + s->regs[SONIC_TCR] |= SONIC_TCR_CRSL; + if (nc->info->can_receive(nc)) { + s->loopback_packet = 1; +- nc->info->receive(nc, s->tx_buffer, tx_len); ++ qemu_receive_packet(nc, s->tx_buffer, tx_len); + } + } else { + /* Transmit packet */ +-- +2.29.2 + |