From: Jan Beulich <jbeulich@suse.com>
Date: Tue, 9 Jun 2015 13:54:53 +0000 (+0200)
Subject: arinc653: don't leak hypervisor stack contents through XEN_SYSCTL_SCHEDOP_getinfo
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~3126
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=e0e3b8f64730f3ee167d29aa5ab18902fba4f416;p=xen.git

arinc653: don't leak hypervisor stack contents through XEN_SYSCTL_SCHEDOP_getinfo

Note that due to XSA-77 this is not a security issue.

Reported-by: "栾尚聪(好风)" <shangcong.lsc@alibaba-inc.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by Robert VanVossen <robert.vanvossen@dornerworks.com>
---

diff --git a/xen/common/sched_arinc653.c b/xen/common/sched_arinc653.c
index 819b869193..cff5da9d99 100644
--- a/xen/common/sched_arinc653.c
+++ b/xen/common/sched_arinc653.c
@@ -705,6 +705,7 @@ a653sched_adjust_global(const struct scheduler *ops,
         rc = arinc653_sched_set(ops, &local_sched);
         break;
     case XEN_SYSCTL_SCHEDOP_getinfo:
+        memset(&local_sched, -1, sizeof(local_sched));
         rc = arinc653_sched_get(ops, &local_sched);
         if ( rc )
             break;