linux-kernel - Re: KMSAN: kernel-infoleak in copy_siginfo_to

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Date:   Tue, 28 May 2019 12:47:46 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     ebiederm@...ssion.com (Eric W. Biederman)
Cc:     arnd@...db.de, christian@...uner.io, deepa.kernel@...il.com,
        glider@...gle.com, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        Oleg Nesterov <oleg@...hat.com>,
        syzbot <syzbot+0d602a1b0d8c95bdf299@...kaller.appspotmail.com>
Subject: Re: KMSAN: kernel-infoleak in copy_siginfo_to_user (2)

On Tue, 28 May 2019 12:34:28 -0500 ebiederm@...ssion.com (Eric W. Biederman) wrote:

> Didn't someone already provide a fix for this one?
> 
> I thought  I saw that hit your tree a while ago.  I am looking in
> ptrace.c and I don't see anything that would have fixed this issue.

I can't find anything which might have addressed this.

> If there isn't a fix in the queue I will take a stab at it.

Thanks.