linux-kernel - Re: [PATCH] drm/ttm: Fix address passed to dma_mapping_error() in ttm_pool

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] [day] [month] [year] [list]

Date:   Mon, 11 Jan 2021 15:31:42 -0500
From:   Jeremy Cline <jcline@...hat.com>
To:     Christian König <christian.koenig@....com>
Cc:     Huang Rui <ray.huang@....com>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/ttm: Fix address passed to dma_mapping_error() in
 ttm_pool_map()

On Mon, Jan 11, 2021 at 09:21:48PM +0100, Christian König wrote:
> Am 11.01.21 um 17:40 schrieb Jeremy Cline:
> > check_unmap() is producing a warning about a missing map error check.
> > The return value from dma_map_page() should be checked for an error, not
> > the caller-provided dma_addr.
> > 
> > Fixes: d099fc8f540a ("drm/ttm: new TT backend allocation pool v3")
> > Signed-off-by: Jeremy Cline <jcline@...hat.com>
> 
> Good catch. Reviewed and pushed to drm-misc-fixes, should be in the -rc by
> the weekend.
> 

Great, many thanks!

- Jeremy