Re: KASAN: use-after-free Read in __list_add_valid (5)

[Eric Biggers]

On Tue, May 15, 2018 at 01:49:23PM -0700, Roland Dreier wrote:
> > Still reproducible on Linus' tree (commit 66e1c94db3cd4e) and on linux-next
> > (next-20180511).  Here's a simplified reproducer:
> 
> Thanks!  That's a fantastic test case.
> 
> The issue is a race where rdma_listen() sees invalid state in the
> middle of an rdma_bind_addr() call that will ultimately fail.  I'll
> send a proposed patch shortly.
> 
>  - R.

Ping; there's still no fix merged for this.  The reproducer also works as an
unprivileged user.

- Eric