Re: [PATCH v3] fuse: In fuse_flush only wait if someone wants the return code

From: Tycho Andersen
Date: Thu Dec 08 2022 - 12:49:39 EST


On Thu, Dec 08, 2022 at 03:26:19PM +0100, Miklos Szeredi wrote:
> On Mon, 28 Nov 2022 at 16:01, Tycho Andersen <tycho@tycho.pizza> wrote:
> >
> > Hi Milkos,
> >
> > On Mon, Nov 14, 2022 at 09:02:09AM -0700, Tycho Andersen wrote:
> > > v3: use schedule_work() to avoid other sleeps in inode_write_now() and
> > > fuse_sync_writes(). Fix a UAF of the stack-based inarg.
> >
> > Thoughts on this version?
>
> Skipping attr invalidation on success is wrong.

Agreed, that looks like my mistake.

> How about the attached (untested) patch?

It passes my reproducer with no warnings or anything. Feel free to
add:

Tested-by: Tycho Andersen <tycho@tycho.pizza>

if you want to commit it.

Tycho