diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2021-3416_7.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2021-3416_7.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_7.patch b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_7.patch new file mode 100644 index 0000000000..b3b702cca4 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2021-3416_7.patch @@ -0,0 +1,42 @@ +From 64b38675c728354e4015e4bec3d975cd4cb8a981 Mon Sep 17 00:00:00 2001 +From: Alexander Bulekov <alxndr@bu.edu> +Date: Fri, 26 Feb 2021 13:47:53 -0500 +Subject: [PATCH 07/10] rtl8139: 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 +Buglink: https://bugs.launchpad.net/qemu/+bug/1910826 +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 [5311fb805a4403bba024e83886fa0e7572265de4] +CVE: CVE-2021-3416 + +Signed-off-by: Sakib Sajal <sakib.sajal@windriver.com> +--- + hw/net/rtl8139.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +Index: qemu-4.2.0/hw/net/rtl8139.c +=================================================================== +--- qemu-4.2.0.orig/hw/net/rtl8139.c ++++ qemu-4.2.0/hw/net/rtl8139.c +@@ -1793,7 +1793,7 @@ static void rtl8139_transfer_frame(RTL81 + } + + DPRINTF("+++ transmit loopback mode\n"); +- rtl8139_do_receive(qemu_get_queue(s->nic), buf, size, do_interrupt); ++ qemu_receive_packet(qemu_get_queue(s->nic), buf, size); + + if (iov) { + g_free(buf2); |