On Wed, Aug 19, 2020 at 6:25 AM Eric W. Biederman <[email protected]> wrote: > > The bug in the existing code is that bpf_iter does get_file instead > of get_file_rcu. Does anyone have any sense of how to add debugging > to get_file to notice when it is being called in the wrong context?
That bug is already fixed in bpf tree.
See commit cf28f3bbfca0 ("bpf: Use get_file_rcu() instead of
get_file() for task_file iterator")
