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SubjectRe: [net-next] net: crypto set sk to NULL when af_alg_release.
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From: Mao Wenan <maowenan@huawei.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.

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