From: Norbert Manthey <nmanthey@amazon.de>
To: <xen-devel@lists.xenproject.org>
Cc: Ian Jackson <iwj@xenproject.org>, Juergen Gross <jgross@suse.com>,
Wei Liu <wl@xen.org>, Julien Grall <jgrall@amazon.co.uk>,
Michael Kurth <mku@amazon.de>,
Norbert Manthey <nmanthey@amazon.de>
Subject: [PATCH XENSTORE v1 05/10] xenstore: handle daemon creation errors
Date: Fri, 26 Feb 2021 15:41:39 +0100 [thread overview]
Message-ID: <20210226144144.9252-6-nmanthey@amazon.de> (raw)
In-Reply-To: <20210226144144.9252-1-nmanthey@amazon.de>
In rare cases, the path to the daemon socket cannot be created as it is
longer than PATH_MAX. Instead of failing with a NULL pointer dereference,
terminate the application with an error message.
This bug was discovered and resolved using Coverity Static Analysis
Security Testing (SAST) by Synopsys, Inc.
Signed-off-by: Norbert Manthey <nmanthey@amazon.de>
Reviewed-by: Thomas Friebel <friebelt@amazon.de>
Reviewed-by: Julien Grall <jgrall@amazon.co.uk>
---
tools/xenstore/xenstored_core.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/xenstore/xenstored_core.c b/tools/xenstore/xenstored_core.c
--- a/tools/xenstore/xenstored_core.c
+++ b/tools/xenstore/xenstored_core.c
@@ -1996,6 +1996,9 @@ static void init_sockets(void)
struct sockaddr_un addr;
const char *soc_str = xs_daemon_socket();
+ if (!soc_str)
+ barf_perror("Failed to obtain xs domain socket");
+
/* Create sockets for them to listen to. */
atexit(destroy_fds);
sock = socket(PF_UNIX, SOCK_STREAM, 0);
--
2.17.1
Amazon Development Center Germany GmbH
Krausenstr. 38
10117 Berlin
Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss
Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B
Sitz: Berlin
Ust-ID: DE 289 237 879
next prev parent reply other threads:[~2021-02-26 14:42 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-26 14:41 [PATCH XENSTORE v1 00/10] Code analysis fixes Norbert Manthey
2021-02-26 14:41 ` [PATCH XENSTORE v1 01/10] xenstore: add missing NULL check Norbert Manthey
2021-03-02 5:07 ` Jürgen Groß
2021-03-03 16:07 ` Ian Jackson
2021-02-26 14:41 ` [PATCH XENSTORE v1 02/10] xenstore: fix print format string Norbert Manthey
2021-03-02 5:07 ` Jürgen Groß
2021-03-03 16:08 ` Ian Jackson
2021-02-26 14:41 ` [PATCH XENSTORE v1 03/10] xenstore: check formats of trace Norbert Manthey
2021-03-02 5:08 ` Jürgen Groß
2021-03-03 16:08 ` Ian Jackson
2021-02-26 14:41 ` [PATCH XENSTORE v1 04/10] xenstore_client: handle memory on error Norbert Manthey
2021-03-02 5:08 ` Jürgen Groß
2021-03-03 16:10 ` Ian Jackson
2021-02-26 14:41 ` Norbert Manthey [this message]
2021-03-02 5:08 ` [PATCH XENSTORE v1 05/10] xenstore: handle daemon creation errors Jürgen Groß
2021-03-03 16:10 ` Ian Jackson
2021-02-26 14:41 ` [PATCH XENSTORE v1 06/10] xenstored: handle port reads correctly Norbert Manthey
2021-02-26 15:36 ` Andrew Cooper
2021-03-02 5:15 ` Jürgen Groß
2021-03-02 7:48 ` Norbert Manthey
2021-03-02 8:12 ` Jürgen Groß
2021-02-26 14:41 ` [PATCH XENSTORE v1 07/10] xenstore: handle do_mkdir and do_rm failure Norbert Manthey
2021-03-02 5:09 ` Jürgen Groß
2021-03-03 16:11 ` Ian Jackson
2021-02-26 14:41 ` [PATCH XENSTORE v1 08/10] xenstore: add missing NULL check Norbert Manthey
2021-03-02 5:10 ` Jürgen Groß
2021-03-03 16:11 ` Ian Jackson
2021-02-26 14:41 ` [PATCH XENSTORE v1 09/10] xs: handle daemon socket error Norbert Manthey
2021-03-02 5:10 ` Jürgen Groß
2021-03-03 16:13 ` Ian Jackson
2021-03-04 14:58 ` Norbert Manthey
2021-03-04 15:04 ` Ian Jackson
2021-02-26 14:41 ` [PATCH XENSTORE v1 10/10] xs: add error handling Norbert Manthey
2021-02-26 14:53 ` Julien Grall
2021-02-26 15:26 ` Norbert Manthey
2021-03-02 5:11 ` Jürgen Groß
2021-03-03 16:13 ` Ian Jackson
2021-03-01 18:01 ` [for-4.15] Re: [PATCH XENSTORE v1 00/10] Code analysis fixes Julien Grall
2021-03-01 19:39 ` Andrew Cooper
2021-03-02 10:04 ` Julien Grall
2021-03-03 18:45 ` Julien Grall
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=20210226144144.9252-6-nmanthey@amazon.de \
--to=nmanthey@amazon.de \
--cc=iwj@xenproject.org \
--cc=jgrall@amazon.co.uk \
--cc=jgross@suse.com \
--cc=mku@amazon.de \
--cc=wl@xen.org \
--cc=xen-devel@lists.xenproject.org \
/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;
as well as URLs for NNTP newsgroup(s).