linux-kernel - Re: [PATCH] drm/panfrost: Avoid user size passed to kvmalloc()

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Ybt8QWEAooP++R7a@maud>
Date:   Thu, 16 Dec 2021 12:49:53 -0500
From:   Alyssa Rosenzweig <alyssa@...labora.com>
To:     Steven Price <steven.price@....com>
Cc:     Daniel Vetter <daniel@...ll.ch>, David Airlie <airlied@...ux.ie>,
        Rob Herring <robh@...nel.org>,
        Tomeu Vizoso <tomeu.vizoso@...labora.com>,
        Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH] drm/panfrost: Avoid user size passed to kvmalloc()

> This provides an easy method for user
> space to trigger the OOM killer (by temporarily allocating large amounts
> of kernel memory)

panfrost user space has a lot of easy ways to trigger to the OOM killer
unfortunately .... if this is something we want to fix there are a lot
more patches coming :(