Squashed 'import-layers/yocto-poky/' changes from dc8508f6099..67491b0c104
Yocto 2.2.2 (Morty)
Change-Id: Id9a452e28940d9f166957de243d9cb1d8818704e
git-subtree-dir: import-layers/yocto-poky
git-subtree-split: 67491b0c104101bb9f366d697edd23c895be4302
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/qemu/qemu/0004-fix-CVE-2016-7909.patch b/import-layers/yocto-poky/meta/recipes-devtools/qemu/qemu/0004-fix-CVE-2016-7909.patch
new file mode 100644
index 0000000..e71bbf6
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/qemu/qemu/0004-fix-CVE-2016-7909.patch
@@ -0,0 +1,42 @@
+Upstream-Status: Backport [http://git.qemu.org/?p=qemu.git;a=commit;h=34e29ce]
+CVE: CVE-2016-7909
+
+Signed-off-by: Kai Kang <kai.kang@windriver.com>
+---
+From 34e29ce754c02bb6b3bdd244fbb85033460feaff Mon Sep 17 00:00:00 2001
+From: Prasad J Pandit <pjp@fedoraproject.org>
+Date: Fri, 30 Sep 2016 00:27:33 +0530
+Subject: [PATCH] net: pcnet: check rx/tx descriptor ring length
+
+The AMD PC-Net II emulator has set of control and status(CSR)
+registers. Of these, CSR76 and CSR78 hold receive and transmit
+descriptor ring length respectively. This ring length could range
+from 1 to 65535. Setting ring length to zero leads to an infinite
+loop in pcnet_rdra_addr() or pcnet_transmit(). Add check to avoid it.
+
+Reported-by: Li Qiang <liqiang6-s@360.cn>
+Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
+Signed-off-by: Jason Wang <jasowang@redhat.com>
+---
+ hw/net/pcnet.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/hw/net/pcnet.c b/hw/net/pcnet.c
+index 198a01f..3078de8 100644
+--- a/hw/net/pcnet.c
++++ b/hw/net/pcnet.c
+@@ -1429,8 +1429,11 @@ static void pcnet_csr_writew(PCNetState *s, uint32_t rap, uint32_t new_value)
+ case 47: /* POLLINT */
+ case 72:
+ case 74:
++ break;
+ case 76: /* RCVRL */
+ case 78: /* XMTRL */
++ val = (val > 0) ? val : 512;
++ break;
+ case 112:
+ if (CSR_STOP(s) || CSR_SPND(s))
+ break;
+--
+2.10.1
+