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| author | Mikko Perttunen <mperttunen@nvidia.com> | 2018-06-20 16:03:58 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-24 13:09:14 +0200 |
| commit | f2cbde943d9797f49ff484408e1edb4fd9bccaae (patch) | |
| tree | d48c74a871409c721cfcf79ef4881c3ebcf2776a | |
| parent | d3f205d2d3cdbd57b67a16b0dcd197bcf19e6111 (diff) | |
| download | linux-f2cbde943d9797f49ff484408e1edb4fd9bccaae.tar.gz | |
drm/tegra: Fix comparison operator for buffer size
[ Upstream commit 5265f0338bc0feec6c0d544dfe005dec1a93cb93 ]
Here we are checking for the buffer length, not an offset for writing
to, so using > is correct. The current code incorrectly rejects a
command buffer ending at the memory buffer's end.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index 0598b4c18c253b..75b1c8c03ce95e 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -470,7 +470,7 @@ int tegra_drm_submit(struct tegra_drm_context *context, * unaligned offset is malformed and cause commands stream * corruption on the buffer address relocation. */ - if (offset & 3 || offset >= obj->gem.size) { + if (offset & 3 || offset > obj->gem.size) { err = -EINVAL; goto fail; } |