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* [PATCH 1/3] qemu: Security fix CVE-2016-1568
@ 2016-02-09  1:29 Armin Kuster
  2016-02-09  1:29 ` [PATCH 2/3] nettle: Security fix CVE-2015-8803 and CVE-2015-8805 Armin Kuster
  2016-02-09  1:29 ` [PATCH 3/3] nettle: Security fix CVE-2015-8804 Armin Kuster
  0 siblings, 2 replies; 5+ messages in thread
From: Armin Kuster @ 2016-02-09  1:29 UTC (permalink / raw)
  To: openembedded-core; +Cc: Armin Kuster

From: Armin Kuster <akuster@mvista.com>

CVE-2016-1568 Qemu: ide: ahci use-after-free vulnerability in aio port commands

Signed-off-by: Armin Kuster <akuster@mvista.com>
---
 .../recipes-devtools/qemu/qemu/CVE-2016-1568.patch | 46 ++++++++++++++++++++++
 meta/recipes-devtools/qemu/qemu_2.5.0.bb           |  1 +
 2 files changed, 47 insertions(+)
 create mode 100644 meta/recipes-devtools/qemu/qemu/CVE-2016-1568.patch

diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2016-1568.patch b/meta/recipes-devtools/qemu/qemu/CVE-2016-1568.patch
new file mode 100644
index 0000000..56fd346
--- /dev/null
+++ b/meta/recipes-devtools/qemu/qemu/CVE-2016-1568.patch
@@ -0,0 +1,46 @@
+From 4ab0359a8ae182a7ac5c99609667273167703fab Mon Sep 17 00:00:00 2001
+From: Prasad J Pandit <pjp@fedoraproject.org>
+Date: Mon, 11 Jan 2016 14:10:42 -0500
+Subject: [PATCH] ide: ahci: reset ncq object to unused on error
+
+When processing NCQ commands, AHCI device emulation prepares a
+NCQ transfer object; To which an aio control block(aiocb) object
+is assigned in 'execute_ncq_command'. In case, when the NCQ
+command is invalid, the 'aiocb' object is not assigned, and NCQ
+transfer object is left as 'used'. This leads to a use after
+free kind of error in 'bdrv_aio_cancel_async' via 'ahci_reset_port'.
+Reset NCQ transfer object to 'unused' to avoid it.
+
+[Maintainer edit: s/ACHI/AHCI/ in the commit message. --js]
+
+Reported-by: Qinghao Tang <luodalongde@gmail.com>
+Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
+Reviewed-by: John Snow <jsnow@redhat.com>
+Message-id: 1452282511-4116-1-git-send-email-ppandit@redhat.com
+Signed-off-by: John Snow <jsnow@redhat.com>
+
+Upstream-Status: Backport
+
+http://git.qemu.org/?p=qemu.git;a=commit;h=4ab0359a8ae182a7ac5c99609667273167703fab
+
+CVE: CVE-2016-1568
+[Yocto # 9013]
+
+Signed-off-by: Armin Kuster <akuster@mvista.com>
+
+---
+ hw/ide/ahci.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+Index: qemu-2.5.0/hw/ide/ahci.c
+===================================================================
+--- qemu-2.5.0.orig/hw/ide/ahci.c
++++ qemu-2.5.0/hw/ide/ahci.c
+@@ -910,6 +910,7 @@ static void ncq_err(NCQTransferState *nc
+     ide_state->error = ABRT_ERR;
+     ide_state->status = READY_STAT | ERR_STAT;
+     ncq_tfs->drive->port_regs.scr_err |= (1 << ncq_tfs->tag);
++    ncq_tfs->used = 0;
+ }
+ 
+ static void ncq_finish(NCQTransferState *ncq_tfs)
diff --git a/meta/recipes-devtools/qemu/qemu_2.5.0.bb b/meta/recipes-devtools/qemu/qemu_2.5.0.bb
index 6ad7bbb..e51ec16 100644
--- a/meta/recipes-devtools/qemu/qemu_2.5.0.bb
+++ b/meta/recipes-devtools/qemu/qemu_2.5.0.bb
@@ -7,6 +7,7 @@ SRC_URI += "file://configure-fix-Darwin-target-detection.patch \
             file://qemu-enlarge-env-entry-size.patch \
             file://Qemu-Arm-versatilepb-Add-memory-size-checking.patch \
             file://no-valgrind.patch \
+            file://CVE-2016-1568.patch \
            "
 SRC_URI_prepend = "http://wiki.qemu-project.org/download/${BP}.tar.bz2"
 SRC_URI[md5sum] = "f469f2330bbe76e3e39db10e9ac4f8db"
-- 
2.3.5



^ permalink raw reply related	[flat|nested] 5+ messages in thread
end of thread, other threads:[~2016-02-09 14:30 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-02-09  1:29 [PATCH 1/3] qemu: Security fix CVE-2016-1568 Armin Kuster
2016-02-09  1:29 ` [PATCH 2/3] nettle: Security fix CVE-2015-8803 and CVE-2015-8805 Armin Kuster
2016-02-09  1:29 ` [PATCH 3/3] nettle: Security fix CVE-2015-8804 Armin Kuster
2016-02-09 10:33   ` Alexander Kanavin
2016-02-09 14:30     ` Burton, Ross

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