[PATCH 0/3] irqchip/gic-v3: Lifetime and range fixes in the GICv3 and ITS drivers

[Marc Zyngier]

On Tue, 08 Sep 2026 15:26:29 +0100,
Fuad Tabba <fuad.tabba at linux.dev> wrote:
> 
> Hi folks,
> 
> Three fixes to the GICv3 and ITS drivers, from reviewing the GIC series
> floating around and chasing down Sashiko's reports.
> 
> The first releases the partition node that gic_irq_get_fwspec_info()
> takes from of_find_node_by_phandle() and never puts. Sashiko raised it
> on an of/irq patch of mine, and I said a fix was forthcoming [1].
> 
> The second widens the per-device MSI clamp, which truncates to zero when
> GITS_TYPER.ID_bits is at its maximum and then denies every MSI on that
> ITS. I couldn't find an implementation that reports that maximum, so
> this is one value at the edge rather than something anyone is hitting.
> It carries Cc: stable because the commit it fixes was itself
> backported, so drop the tag if you'd rather.
> 
> The third clears vpt_page once its_vpe_teardown() has freed it, so the
> NULL guard holds if teardown runs again on the same vPE.
> 
> Based on Linux 7.3-rc2 (df2908090cda3).

Reviewed-by: Marc Zyngier <maz at kernel.org>

	M.

-- 
Without deviation from the norm, progress is not possible.