From: Liu Yuan <namei.unix@gmail.com>
To: sheepdog@lists.wpkg.org
Cc: Kevin Wolf <kwolf@redhat.com>,
qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>
Subject: [Qemu-devel] [PATCH] sheepdog: fix NULL dereference in sd_create
Date: Tue, 17 Jun 2014 13:45:35 +0800 [thread overview]
Message-ID: <1402983935-14920-1-git-send-email-namei.unix@gmail.com> (raw)
Following command
qemu-img create -f qcow2 sheepdog:test 20g
will cause core dump because aio_context is NULL in sd_create. We should
initialize it by qemu_get_aio_context() to avoid NULL dereference.
Cc: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Liu Yuan <namei.unix@gmail.com>
---
block/sheepdog.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/block/sheepdog.c b/block/sheepdog.c
index 1fa1939..47a8b5a 100644
--- a/block/sheepdog.c
+++ b/block/sheepdog.c
@@ -1761,6 +1761,7 @@ static int sd_create(const char *filename, QEMUOptionParameter *options,
bdrv_unref(bs);
}
+ s->aio_context = qemu_get_aio_context();
ret = do_sd_create(s, &vid, 0, errp);
if (ret) {
goto out;
--
1.8.1.2
next reply other threads:[~2014-06-17 5:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-17 5:45 Liu Yuan [this message]
2014-06-19 9:43 ` [Qemu-devel] [PATCH] sheepdog: fix NULL dereference in sd_create Stefan Hajnoczi
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