linux-kernel - Re: [PATCH v2] binfmt_misc: Fix possible deadlock in bm_register

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Date:   Wed,  3 Mar 2021 02:43:30 -0800
From:   Lior Ribak <liorribak@...il.com>
To:     akpm@...ux-foundation.org
Cc:     deller@....de, viro@...iv.linux.org.uk,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Lior Ribak <liorribak@...il.com>
Subject: Re: [PATCH v2] binfmt_misc: Fix possible deadlock in bm_register_write

> Looks good to me.
> 
> I assume this is an ancient bug and that a backport to -stable trees
> (with a cc:stable) is warranted?

Yep, it exists since the "persistent opened binary handler" commit 
948b701a607f123df92ed29084413e5dd8cda2ed was introduced in version 4.8, and yes i think the patch
can be backported to the stable trees