1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c b/drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c
index 72998280..35a43130 100644
--- a/drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c
@@ -388,6 +388,7 @@ long gk20a_dbg_gpu_dev_ioctl(struct file *filp, unsigned int cmd,
 
         BUG_ON(_IOC_SIZE(cmd) > NVGPU_DBG_GPU_IOCTL_MAX_ARG_SIZE);
 
+        memset(buf, 0, sizeof(buf));
         if (_IOC_DIR(cmd) & _IOC_WRITE) {
                 if (copy_from_user(buf, (void __user *)arg, _IOC_SIZE(cmd)))
                         return -EFAULT;