Re: [PATCH v4] lib: xarray: free unused spare node in xas_create_range()

[Jinjiang Tu]

在 2026/1/27 4:04, Andrew Morton 写道:
> On Mon, 26 Jan 2026 11:16:08 +0530 Shardul B <shardul.b@xxxxxxxxxxxxxxxxxx> wrote:
>
> > Hi Matthew, Andrew,
> >
> >
> > Gently pinging this patch. I’ve checked the latest linux-next (next-20260123) and the akpm-unstable branches, and it doesn't appear to have been picked up yet.
> >
> >
> > The patch has a Reviewed-by from David Hildenbrand and fixes a memory leak in the XArray library identified by syzbot.
> >
> >
> > If there are no further concerns, could you please let me know if this is queued for the next cycle?
> There are comments from Jinjiang Tu and Dev Jain which remain
> unaddressed, please.

Hi, Andrew

The issue is another problem, independent ofShardul's patch.

I have posted a patch to solve it.
https://lore.kernel.org/linux-mm/20260121062243.1893129-1-tujinjiang@xxxxxxxxxx

> The leak is a rare and this is a minor problem, I believe?
>
> I'll queue the patch for some exposure and testing but it appears that
> some additional consideration is needed before it should be progressed
> further.