Wind River Support Network

Description

In the Linux kernel, the following vulnerability has been resolved:  btrfs: fix double free in create_space_info() error path  When kobject_init_and_add() fails, the call chain is:  create_space_info() -> btrfs_sysfs_add_space_info_type() -> kobject_init_and_add() -> failure -> kobject_put(&space_info->kobj) -> space_info_release() -> kfree(space_info)  Then control returns to create_space_info():  btrfs_sysfs_add_space_info_type() returns error -> goto out_free -> kfree(space_info)  This causes a double free.  Keep the direct kfree(space_info) for the earlier failure path, but after btrfs_sysfs_add_space_info_type() has called kobject_put(), let the kobject release callback handle the cleanup.