Re: [PATCH 1/1] mm/madvise: initialize prev pointer in madvise_walk_vmas

From: David Hildenbrand
Date: Tue Jun 17 2025 - 04:38:25 EST


vma = vma_modify_flags_name(&vmi, *prev, ...

We should use Fixes: then.

So no we shouldn't...



Acked-by: David Hildenbrand <david@xxxxxxxxxx>

Sure? :)

Unless I am missing something important, yes :)

This solution isn't correct as prev == NULL when prev != NULL is wholly
incorrect.

I am not able to understand what you mean :)

I assume you mean, that we reach a point down in the callchain, where "prev" is supposed to be set to something proper, but it would be "NULL".

That would indeed require a different fix.

I wonder why we didn't trigger this case so far?

--
Cheers,

David / dhildenb