Re: [PATCH 6.12 000/307] 6.12.93-rc1 review

[Jamal Hadi Salim]

Hi Miguel,

On Mon, Jun 8, 2026 at 7:16 AM Miguel Ojeda
<miguel.ojeda.sandonis@xxxxxxxxx> wrote:
>
> On Mon, Jun 8, 2026 at 12:57 PM Jamal Hadi Salim <jhs@xxxxxxxxxxxx> wrote:
> >
> > I believe this bug slipped in during a small window but was fixed very
> > quickly. Probably some fix never trickled to stable.
>
> Yeah, as I mentioned above, I think commit a005fa5d7502 ("net/sched:
> act_mirred: Fix blockcast recursion bypass leading to stack overflow")
> is missing (at least).
>
> I would suggest reviewing the entire chain to see what needs to be backported.
>
> > If you can point me to the exact tree where this happens i can take a look.
>
> This is the 6.12.y -rc tree:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
> linux-6.12.y
>
> The stable kernel team puts the link to the repository at the top of
> the thread too:
>
>   https://lore.kernel.org/stable/20260607095727.647295505@xxxxxxxxxxxxxxxxxxx/
>
> > Still curious: So only the arm compiler catches this?
>
> It likely gets caught by other arches too, i.e. I just happened to
> catch it in my arm64 build.
>
> This is Clang, not GCC, by the way.
>

I think it was too early AM here when i was looking at this.
The answer was right there all along in what you said: The missing
piece is commit a005fa5d7502

cheers,
jamal
> I hope this helps!
>
> Cheers,
> Miguel