Re: [REGRESSION] mm/memcg: folio/lruvec mismatch after cgroup offline: lru_size underflow and list_del corruption (7.1)
Andrew Morton <[email protected]> Wed, 5 Aug 2026 09:35:22 -0700
| Newsgroups | org.kernel.vger.cgroups,dev.linux.lists.regressions,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