From: Wei Yongjun <yjwei@cn.fujitsu.com>
To: kvm@vger.kernel.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Subject: [PATCH] KVM: ia64: clear kvm->arch.vioapic if fail to create irq chip
Date: Mon, 08 Feb 2010 17:56:44 +0800 [thread overview]
Message-ID: <4B6FDFDC.40603@cn.fujitsu.com> (raw)
In-Reply-To: <4B6FDB2D.9080707@cn.fujitsu.com>
If fail to create irq chip due to fail of kvm_setup_default_irq_routing(),
kvm->arch.vioapic is not set to NULL, this may cause KVM_GET_IRQCHIP and
KVM_SET_IRQCHIP access to unexcepted memory.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
---
arch/ia64/kvm/kvm-ia64.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 0618898..0cfc15d 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -969,6 +969,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
r = kvm_setup_default_irq_routing(kvm);
if (r) {
kfree(kvm->arch.vioapic);
+ kvm->arch.vioapic = NULL;
goto out;
}
break;
--
1.6.3.3
next prev parent reply other threads:[~2010-02-08 9:55 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-08 9:01 [PATCH 1/2] KVM: PIT: remove useless code from kvm_create_pit() Wei Yongjun
2010-02-08 9:03 ` [PATCH 2/2] KVM: PIT: unregister kvm irq notifier if fail to create pit Wei Yongjun
2010-02-08 9:36 ` [PATCH] KVM: only set kvm->arch.vioapic when success to init ioapic Wei Yongjun
2010-02-08 9:56 ` Wei Yongjun [this message]
2010-02-09 2:28 ` [PATCH] KVM: ia64: clear kvm->arch.vioapic if fail to create irq chip Wei Yongjun
2010-02-08 18:07 ` [PATCH] KVM: only set kvm->arch.vioapic when success to init ioapic Marcelo Tosatti
2010-02-09 1:18 ` [PATCHv2] KVM: kvm->arch.vioapic should be NULL if kvm_ioapic_init() failure Wei Yongjun
2010-02-09 2:28 ` Wei Yongjun
2010-02-08 18:05 ` [PATCH 2/2] KVM: PIT: unregister kvm irq notifier if fail to create pit Marcelo Tosatti
2010-02-09 10:40 ` Avi Kivity
2010-02-08 18:00 ` [PATCH 1/2] KVM: PIT: remove useless code from kvm_create_pit() Marcelo Tosatti
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4B6FDFDC.40603@cn.fujitsu.com \
--to=yjwei@cn.fujitsu.com \
--cc=kvm@vger.kernel.org \
--cc=mtosatti@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox