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List: xen-cvs
Subject: [xen staging] tools/xenstore: fix event sending in introduce_domain()
From: patchbot () xen ! org
Date: 2022-05-25 11:11:04
Message-ID: E1ntouu-0007Za-5Z () xenbits ! xenproject ! org
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commit 49dd52fb1311dadab29f6634d0bc1f4c022c357a
Author: Juergen Gross <jgross@suse.com>
AuthorDate: Wed May 25 12:55:49 2022 +0200
Commit: Julien Grall <jgrall@amazon.com>
CommitDate: Wed May 25 12:10:03 2022 +0100
tools/xenstore: fix event sending in introduce_domain()
Commit fc2b57c9af46 ("xenstored: send an evtchn notification on
introduce_domain") introduced a potential NULL dereference in case of
Xenstore live update.
Fix that by adding an appropriate check.
Coverity-Id: 1504572
Fixes: fc2b57c9af46 ("xenstored: send an evtchn notification on introduce_domain")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
---
tools/xenstore/xenstored_domain.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/tools/xenstore/xenstored_domain.c b/tools/xenstore/xenstored_domain.c
index de88bf2a68..ead4c237d2 100644
--- a/tools/xenstore/xenstored_domain.c
+++ b/tools/xenstore/xenstored_domain.c
@@ -493,9 +493,11 @@ static struct domain *introduce_domain(const void *ctx,
/* Now domain belongs to its connection. */
talloc_steal(domain->conn, domain);
- /* Notify the domain that xenstore is available */
- interface->connection = XENSTORE_CONNECTED;
- xenevtchn_notify(xce_handle, domain->port);
+ if (!restore) {
+ /* Notify the domain that xenstore is available */
+ interface->connection = XENSTORE_CONNECTED;
+ xenevtchn_notify(xce_handle, domain->port);
+ }
if (!is_master_domain && !restore)
fire_watches(NULL, ctx, "@introduceDomain", NULL,
--
generated by git-patchbot for /home/xen/git/xen.git#staging
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