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authorArmin Kuster <akuster@mvista.com>2016-02-08 17:29:41 -0800
committerRichard Purdie <richard.purdie@linuxfoundation.org>2016-02-11 12:27:47 +0000
commit7475c4c2e5d6997de0582eaec85748ab99c30d0a (patch)
tree530fac5aa7dd5c37b8b8401e7dac5ba85702c491 /meta/recipes-devtools
parent48575116da8be69a84853dbb2ef21c5763714bef (diff)
downloadpoky-7475c4c2e5d6997de0582eaec85748ab99c30d0a.tar.gz
qemu: Security fix CVE-2016-1568
CVE-2016-1568 Qemu: ide: ahci use-after-free vulnerability in aio port commands (From OE-Core rev: b1b2f629f8e2febd086eae8fabd24322333ea172) Signed-off-by: Armin Kuster <akuster@mvista.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-devtools')
-rw-r--r--meta/recipes-devtools/qemu/qemu/CVE-2016-1568.patch46
-rw-r--r--meta/recipes-devtools/qemu/qemu_2.5.0.bb1
2 files changed, 47 insertions, 0 deletions
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 0000000000..56fd346ae6
--- /dev/null
+++ b/meta/recipes-devtools/qemu/qemu/CVE-2016-1568.patch
@@ -0,0 +1,46 @@
1From 4ab0359a8ae182a7ac5c99609667273167703fab Mon Sep 17 00:00:00 2001
2From: Prasad J Pandit <pjp@fedoraproject.org>
3Date: Mon, 11 Jan 2016 14:10:42 -0500
4Subject: [PATCH] ide: ahci: reset ncq object to unused on error
5
6When processing NCQ commands, AHCI device emulation prepares a
7NCQ transfer object; To which an aio control block(aiocb) object
8is assigned in 'execute_ncq_command'. In case, when the NCQ
9command is invalid, the 'aiocb' object is not assigned, and NCQ
10transfer object is left as 'used'. This leads to a use after
11free kind of error in 'bdrv_aio_cancel_async' via 'ahci_reset_port'.
12Reset NCQ transfer object to 'unused' to avoid it.
13
14[Maintainer edit: s/ACHI/AHCI/ in the commit message. --js]
15
16Reported-by: Qinghao Tang <luodalongde@gmail.com>
17Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
18Reviewed-by: John Snow <jsnow@redhat.com>
19Message-id: 1452282511-4116-1-git-send-email-ppandit@redhat.com
20Signed-off-by: John Snow <jsnow@redhat.com>
21
22Upstream-Status: Backport
23
24http://git.qemu.org/?p=qemu.git;a=commit;h=4ab0359a8ae182a7ac5c99609667273167703fab
25
26CVE: CVE-2016-1568
27[Yocto # 9013]
28
29Signed-off-by: Armin Kuster <akuster@mvista.com>
30
31---
32 hw/ide/ahci.c | 1 +
33 1 file changed, 1 insertion(+)
34
35Index: qemu-2.5.0/hw/ide/ahci.c
36===================================================================
37--- qemu-2.5.0.orig/hw/ide/ahci.c
38+++ qemu-2.5.0/hw/ide/ahci.c
39@@ -910,6 +910,7 @@ static void ncq_err(NCQTransferState *nc
40 ide_state->error = ABRT_ERR;
41 ide_state->status = READY_STAT | ERR_STAT;
42 ncq_tfs->drive->port_regs.scr_err |= (1 << ncq_tfs->tag);
43+ ncq_tfs->used = 0;
44 }
45
46 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 6ad7bbb68f..e51ec16882 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 \
7 file://qemu-enlarge-env-entry-size.patch \ 7 file://qemu-enlarge-env-entry-size.patch \
8 file://Qemu-Arm-versatilepb-Add-memory-size-checking.patch \ 8 file://Qemu-Arm-versatilepb-Add-memory-size-checking.patch \
9 file://no-valgrind.patch \ 9 file://no-valgrind.patch \
10 file://CVE-2016-1568.patch \
10 " 11 "
11SRC_URI_prepend = "http://wiki.qemu-project.org/download/${BP}.tar.bz2" 12SRC_URI_prepend = "http://wiki.qemu-project.org/download/${BP}.tar.bz2"
12SRC_URI[md5sum] = "f469f2330bbe76e3e39db10e9ac4f8db" 13SRC_URI[md5sum] = "f469f2330bbe76e3e39db10e9ac4f8db"