1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 41802915f93f..7b294c127c5f 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -215,6 +215,9 @@ static inline int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i)
                                  __func__, __LINE__, pitch);
                         return -EINVAL;
                 }
+                /* avoid breaking userspace */
+                if (height > 7)
+                        height &= ~0x7;
                 if (!IS_ALIGNED(height, 8)) {
                         dev_warn(p->dev, "%s:%d cb height (%d) invalid\n",
                                  __func__, __LINE__, height);