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SubjectRe: [linus:master] [kasan] a414d4286f: INFO:trying_to_register_non-static_key
On Thu, Jan 11, 2024 at 4:00 PM Tetsuo Handa
<penguin-kernel@i-love.sakura.ne.jp> wrote:
>
> Commit a414d4286f34 ("kasan: handle concurrent kasan_record_aux_stack calls")
> calls raw_spin_lock_init(&alloc_meta->aux_lock) after __memset() in
> kasan_init_object_meta(), but does not call raw_spin_lock_init() after __memset()
> in release_alloc_meta(), resulting in lock map information being zeroed out?
>
> We should not zero out the whole sizeof(struct kasan_alloc_meta) bytes from
> release_alloc_meta() in order not to undo raw_spin_lock_init() from
> kasan_init_object_meta() ?

Yes, already sent a fix:

https://lore.kernel.org/linux-mm/20240109221234.90929-1-andrey.konovalov@linux.dev/

Thank you!

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