Re: [PATCHv2 1/1] RDMA/rxe: Fix the error "trying to register non-static key in rxe_cleanup_task"

[Leon Romanovsky <leon@kernel.org>]

On Mon, Apr 10, 2023 at 11:08:15PM +0800, Zhu Yanjun wrote:
> 在 2023/4/4 14:38, Zhu Yanjun 写道:
> > From: Zhu Yanjun <yanjun.zhu@linux.dev>
> > 
> > In the function rxe_create_qp(), rxe_qp_from_init() is called to
> > initialize qp, internally things like rxe_init_task are not setup until
> > rxe_qp_init_req().
> > 
> > If an error occures before this point then the unwind will call
> > rxe_cleanup() and eventually to rxe_qp_do_cleanup()/rxe_cleanup_task()
> > which will oops when trying to access the uninitialized spinlock.
> > 
> > If rxe_init_task is not executed, rxe_cleanup_task will not be called.
> > 
> > Reported-by: syzbot+cfcc1a3c85be15a40cba@syzkaller.appspotmail.com
> > Link: https://syzkaller.appspot.com/bug?id=fd85757b74b3eb59f904138486f755f71e090df8
> > 
> > Fixes: 8700e3e7c485 ("Soft RoCE driver")
> > Fixes: 2d4b21e0a291 ("IB/rxe: Prevent from completer to operate on non valid QP")
> > Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
> > ---
> > V1 -> V2: Remove memset functions;
> 
> Gently ping

It doesn't apply to rdma-next.

Thanks