NACK: [SRU][P/N/J][PATCH v2 0/1] CVE-2025-38584

[Alice C. Munduruca]

Missing `82a0302e7167 padata: Remove comment for reorder_work` according to the dashboard.

Will be sending a v3.

On 10/7/25 17:17, Alice C. Munduruca wrote:
> v2 -> Reworked structure to match flat hierarchy standard.
>
> [ Impact ]
>
> Despite previous attempts to fix this bug, a UAF still occurs in certain
> situations within padata. In order to fix it for good, the previous queueing
> system is completely removed and logic is rewritten to be safe.
>
> [ Fix ]
>
> plucky: backported from upstream, writing over a minor change with `cpumask_next_wrap`.
> noble: redid backport from same provenance due to context changes.
> jammy: cleanly applied plucky fix.
>
> [ Tests ]
>
> Compile, boot, and stress-ng (cpu) tested.
>
> [ Where problems could occur ]
>
> Given that padata has had this UAF for a while, there is not really a risk of
> regression, so much as not having fixed the problem. The fact that changes to the
> original patch are minor minimizes this risk.
>
> Herbert Xu (1):
>    padata: Fix pd UAF once and for all
>
>   include/linux/padata.h |   3 -
>   kernel/padata.c        | 132 ++++++++++++-----------------------------
>   2 files changed, 37 insertions(+), 98 deletions(-)
>