netdev - Re: [PATCHv3 net 1/3] openvswitch: Fix double-free on ip

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CALnjE+qCAsSyQVDm4Q9A4bW+ZhBnLy1p-vGyicDhBbnakOwE5Q@mail.gmail.com>
Date:	Tue, 27 Oct 2015 14:29:38 -0700
From:	Pravin Shelar <pshelar@...ira.com>
To:	Joe Stringer <joestringer@...ira.com>
Cc:	netdev <netdev@...r.kernel.org>, Florian Westphal <fw@...len.de>,
	Pablo Neira Ayuso <pablo@...filter.org>,
	Andy Zhou <azhou@...ira.com>
Subject: Re: [PATCHv3 net 1/3] openvswitch: Fix double-free on ip_defrag() errors

On Sun, Oct 25, 2015 at 8:21 PM, Joe Stringer <joestringer@...ira.com> wrote:
> If ip_defrag() returns an error other than -EINPROGRESS, then the skb is
> freed. When handle_fragments() passes this back up to
> do_execute_actions(), it will be freed again. Prevent this double free
> by never freeing the skb in do_execute_actions() for errors returned by
> ovs_ct_execute. Always free it in ovs_ct_execute() error paths instead.
>
> Fixes: 7f8a436eaa2c ("openvswitch: Add conntrack action")
> Reported-by: Florian Westphal <fw@...len.de>
> Signed-off-by: Joe Stringer <joestringer@...ira.com>

Acked-by: Pravin B Shelar <pshelar@...ira.com>
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html