[BUG] ARM64 regression: NULL pointer dereference in arm_smccc_version_init+0x90/0x1ac

[Emanuele Rocca]

Hello Will and Mark,

On 2025-01-30 11:43, Will Deacon wrote:
> On Fri, Jan 24, 2025 at 03:52:10PM +0100, Emanuele Rocca wrote:
> > This is with kernel 6.1.123. The last known good kernel I have available right
> > now is 6.1.119. In the 6.1.120 changelog I see the following commit which seems
> > potentially related?
> > 
> >  https://lore.kernel.org/all/20241106160448.2712997-1-mark.rutland@arm.com/
> > 
> > That's stable commit [1].
> 
> I can't see anything wrong with that patch but if you have reason to
> suspect that it's broken can you try reverting it to see if the problem
> disappears?

Confirmed: reverting the patch fixes the issue.