From: Greg KH <greg@kroah.com>
To: Tyler Hicks <tyhicks@canonical.com>
Cc: stable@vger.kernel.org
Subject: Re: [PATCH 1/2] irda: Fix memory leak caused by repeated binds of irda socket
Date: Wed, 12 Sep 2018 21:35:33 +0200 [thread overview]
Message-ID: <20180912193533.GC21563@kroah.com> (raw)
In-Reply-To: <1536074645-14160-2-git-send-email-tyhicks@canonical.com>
On Tue, Sep 04, 2018 at 03:24:04PM +0000, Tyler Hicks wrote:
> The irda_bind() function allocates memory for self->ias_obj without
> checking to see if the socket is already bound. A userspace process
> could repeatedly bind the socket, have each new object added into the
> LM-IAS database, and lose the reference to the old object assigned to
> the socket to exhaust memory resources. This patch errors out of the
> bind operation when self->ias_obj is already assigned.
>
> CVE-2018-6554
>
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
> Reviewed-by: Seth Arnold <seth.arnold@canonical.com>
> Reviewed-by: Stefan Bader <stefan.bader@canonical.com>
> ---
No "Reported-by:" lines?
And agin, how can you trigger any of this given the code doesn't even
work? Can you load irda modules as a "normal" user?
thanks,
greg k-h
next prev parent reply other threads:[~2018-09-13 0:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-04 15:24 [STABLE 4.14+][PATCH 0/2] IRDA fixes Tyler Hicks
2018-09-04 15:24 ` [PATCH 1/2] irda: Fix memory leak caused by repeated binds of irda socket Tyler Hicks
2018-09-12 19:35 ` Greg KH [this message]
2018-09-12 20:49 ` Tyler Hicks
2018-09-13 7:02 ` Greg KH
2018-09-04 15:24 ` [PATCH 2/2] irda: Only insert new objects into the global database via setsockopt Tyler Hicks
2018-09-12 19:34 ` [STABLE 4.14+][PATCH 0/2] IRDA fixes Greg KH
2018-09-12 20:46 ` Tyler Hicks
-- strict thread matches above, loose matches on Subject: below --
2018-09-04 15:42 [STABLE <= 4.13][PATCH " Tyler Hicks
2018-09-04 15:42 ` [PATCH 1/2] irda: Fix memory leak caused by repeated binds of irda socket Tyler Hicks
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