drm/qxl: integer overflow in qxl_process_single_command()

This size calculation can overflow on 32 bit systems leading to memory corruption.

Reported-by Ilja Van Sprundel <[email protected]>

Signed-off-by Dan Carpenter <[email protected]>

drivers/gpu/drm/qxl/qxl_ioctl.c +1 -1

index bda5c5f..eda6f30 100644
@@ -168,7 +168,7 @@ static int qxl_process_single_command(struct qxl_device
 *qdev,
 		       cmd->command_size))
 		return -EFAULT;
 
-	reloc_info = kmalloc(sizeof(struct qxl_reloc_info) * cmd->relocs_num,
 GFP_KERNEL);
+	reloc_info = kmalloc_array(cmd->relocs_num, sizeof(struct qxl_reloc_info),
 GFP_KERNEL);