Hi Andrew, On 8/27/2022 8:49 AM, Andrew Morton wrote: > On Fri, 26 Aug 2022 12:26:33 +0530 Charan Teja Kalla <quic_charante@xxxxxxxxxxx> wrote: > >> The below is one path where race between page_ext and offline of the >> respective memory blocks will cause use-after-free on the access of >> page_ext structure. > > What are people's thoughts on a -stable backport? It looks like the > bug has been there for years and the means of hitting it are obscure > and the patch isn't minor, so I'm thinking no? Michal also said no to back port and I also agree with. https://lore.kernel.org/all/YvNc8vuinnddc78j@xxxxxxxxxxxxxx/#t https://lore.kernel.org/all/3aab7518-ff57-abdb-8bab-ea581197a07e@xxxxxxxxxxx/ Thanks, Charan >