| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20200619141637.288886018@linuxfoundation.org>
Date: Fri, 19 Jun 2020 16:31:59 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Juergen Gross <jgross@...e.com>,
Stefano Stabellini <sstabellini@...nel.org>,
Boris Ostrovsky <boris.ostrovsky@...cle.com>
Subject: [PATCH 4.14 074/190] xen/pvcalls-back: test for errors when calling backend_connect()
From: Juergen Gross <jgross@...e.com>
commit c8d70a29d6bbc956013f3401f92a4431a9385a3c upstream.
backend_connect() can fail, so switch the device to connected only if
no error occurred.
Fixes: 0a9c75c2c7258f2 ("xen/pvcalls: xenbus state handling")
Cc: stable@...r.kernel.org
Signed-off-by: Juergen Gross <jgross@...e.com>
Link: https://lore.kernel.org/r/20200511074231.19794-1-jgross@suse.com
Reviewed-by: Stefano Stabellini <sstabellini@...nel.org>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/xen/pvcalls-back.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/xen/pvcalls-back.c
+++ b/drivers/xen/pvcalls-back.c
@@ -1104,7 +1104,8 @@ static void set_backend_state(struct xen
case XenbusStateInitialised:
switch (state) {
case XenbusStateConnected:
- backend_connect(dev);
+ if (backend_connect(dev))
+ return;
xenbus_switch_state(dev, XenbusStateConnected);
break;
case XenbusStateClosing:
Powered by blists - more mailing lists