netdev - Re: [PATCH v3] sctp: fix refcount bug in sctp

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]

Date:   Sat, 21 Mar 2020 07:36:24 +0800
From:   Qiujun Huang <hqjagain@...il.com>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        "David S. Miller" <davem@...emloft.net>, vyasevich@...il.com,
        nhorman@...driver.com, Jakub Kicinski <kuba@...nel.org>,
        linux-sctp@...r.kernel.org, netdev <netdev@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>, anenbupt@...il.com
Subject: Re: [PATCH v3] sctp: fix refcount bug in sctp_wfree

On Sat, Mar 21, 2020 at 1:10 AM Eric Dumazet <eric.dumazet@...il.com> wrote:
>
>
>
>
> This does not really solve the issue.
>
> Even if the particular syzbot repro is now fine.
>
> Really, having anything _after_ the sock_wfree(skb) is the bug, since the current thread no longer
> own a reference on a socket.

I get it, thanks.

>
>
>
>