diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2021-3416_2.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2021-3416_2.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_2.patch b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_2.patch new file mode 100644 index 0000000000..5e53e20bac --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_2.patch @@ -0,0 +1,42 @@ +From e2a48a3c7cc33dbbe89f896e0f07462cb04ff6b5 Mon Sep 17 00:00:00 2001 +From: Jason Wang <jasowang@redhat.com> +Date: Wed, 24 Feb 2021 12:13:22 +0800 +Subject: [PATCH 02/10] e1000: 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 [1caff0340f49c93d535c6558a5138d20d475315c] +CVE: CVE-2021-3416 + +Signed-off-by: Sakib Sajal <sakib.sajal@windriver.com> +--- + hw/net/e1000.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/hw/net/e1000.c b/hw/net/e1000.c +index d7d05ae30..cf22c4f07 100644 +--- a/hw/net/e1000.c ++++ b/hw/net/e1000.c +@@ -546,7 +546,7 @@ e1000_send_packet(E1000State *s, const uint8_t *buf, int size) + + NetClientState *nc = qemu_get_queue(s->nic); + if (s->phy_reg[PHY_CTRL] & MII_CR_LOOPBACK) { +- nc->info->receive(nc, buf, size); ++ qemu_receive_packet(nc, buf, size); + } else { + qemu_send_packet(nc, buf, size); + } +-- +2.29.2 + |