Re: [REGRESSION] mm/memcg: folio/lruvec mismatch after cgroup offline: lru_size underflow and list_del corruption (7.1)

Andrew Morton <[email protected]>
Newsgroups dev.linux.lists.regressions,org.kernel.vger.cgroups,org.kernel.vger.linux-kernel,org.kvack.linux-mm
Message-ID <[email protected]> 
On Wed, 05 Aug 2026 14:03:03 +0200 (CEST) Karl Erik Hofseth <[email protected]> wrote:

> The following KASAN slab-use-after-free comes from a Fedora debug kernel
> build of 7.1.6 with de4660898b7a applied on top, provoked with the
> attached script. Further down are OOPSes generated by workloads in
> production on stock Fedora kernels. MGLRU on/off makes no difference.

Thanks.  It does appear to be a race between migration and memcg
removal.

Gemini provides some thoughts, although I've found these AI crash
interpretations to be a bit unreliable.

	https://share.gemini.google/Y6dMvOlHIFuV
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