linux-kernel - Re: [net-next] net: crypto set sk to NULL when af_alg

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Message-Id: <20190217.154218.1671210082238894003.davem@davemloft.net>
Date:   Sun, 17 Feb 2019 15:42:18 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     maowenan@...wei.com
Cc:     netdev@...r.kernel.org, xiyou.wangcong@...il.com,
        linux-kernel@...r.kernel.org
Subject: Re: [net-next] net: crypto set sk to NULL when af_alg_release.

From: Mao Wenan <maowenan@...wei.com>
Date: Fri, 15 Feb 2019 22:24:15 +0800

> KASAN has found use-after-free in sockfs_setattr.
> The existed commit 6d8c50dcb029 ("socket: close race condition between sock_close()
> and sockfs_setattr()") is to fix this simillar issue, but it seems to ignore
> that crypto module forgets to set the sk to NULL after af_alg_release.

Please target this at 'net' since this is a bug fix.