diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-07-03 15:30:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-24 13:26:59 +0200 |
| commit | 9c8f268dcdd5d3dacf504873861b9f18c70021b0 (patch) | |
| tree | a4fd439b4296c99fda72ecbabbca7fd261da8684 | |
| parent | 43707aa8c55fb165a1a56f590e0defb198ebdde9 (diff) | |
| download | linux-cip-9c8f268dcdd5d3dacf504873861b9f18c70021b0.tar.gz | |
drm/nouveau/gem: off by one bugs in nouveau_gem_pushbuf_reloc_apply()
[ Upstream commit 7f073d011f93e92d4d225526b9ab6b8b0bbd6613 ]
The bo array has req->nr_buffers elements so the > should be >= so we
don't read beyond the end of the array.
Fixes: a1606a9596e5 ("drm/nouveau: new gem pushbuf interface, bump to 0.0.16")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.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/nouveau/nouveau_gem.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index 495c279da2009a..ae560f5977fca5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c @@ -602,7 +602,7 @@ nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli, struct nouveau_bo *nvbo; uint32_t data; - if (unlikely(r->bo_index > req->nr_buffers)) { + if (unlikely(r->bo_index >= req->nr_buffers)) { NV_PRINTK(err, cli, "reloc bo index invalid\n"); ret = -EINVAL; break; @@ -612,7 +612,7 @@ nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli, if (b->presumed.valid) continue; - if (unlikely(r->reloc_bo_index > req->nr_buffers)) { + if (unlikely(r->reloc_bo_index >= req->nr_buffers)) { NV_PRINTK(err, cli, "reloc container bo index invalid\n"); ret = -EINVAL; break; |