diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2021-3416_5.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2021-3416_5.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_5.patch b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_5.patch new file mode 100644 index 0000000000..c3f8f97592 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_5.patch @@ -0,0 +1,45 @@ +From d465dc79c9ee729d91ef086b993e956b1935be69 Mon Sep 17 00:00:00 2001 +From: Jason Wang <jasowang@redhat.com> +Date: Wed, 24 Feb 2021 13:14:35 +0800 +Subject: [PATCH 05/10] sungem: 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: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> +Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> +Reviewed-by: Alistair Francis <alistair.francis@wdc.com> +Signed-off-by: Jason Wang <jasowang@redhat.com> + +Upstream-Status: Backport [8c92060d3c0248bd4d515719a35922cd2391b9b4] +CVE: CVE-2021-3416 + +Signed-off-by: Sakib Sajal <sakib.sajal@windriver.com> +--- + hw/net/sungem.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/hw/net/sungem.c b/hw/net/sungem.c +index 33c3722df..3684a4d73 100644 +--- a/hw/net/sungem.c ++++ b/hw/net/sungem.c +@@ -306,7 +306,7 @@ static void sungem_send_packet(SunGEMState *s, const uint8_t *buf, + NetClientState *nc = qemu_get_queue(s->nic); + + if (s->macregs[MAC_XIFCFG >> 2] & MAC_XIFCFG_LBCK) { +- nc->info->receive(nc, buf, size); ++ qemu_receive_packet(nc, buf, size); + } else { + qemu_send_packet(nc, buf, size); + } +-- +2.29.2 + |