On Tue, May 16, 2023 at 02:44:49PM +0100, Will Deacon wrote: > Mark -- given that this is an SME allocation, please can you take a look? I'm on holiday. > I think the implication of the kfence report is that we're writing beyond > the end of 'task->thread.sme_state' at some point and corrupting the > redzone. > There are two reports here, so hopefully it's not too hard to repro. I think I *once* saw something that might be this but I've never reproduced it, and I suspect that if this just suddenly came up with LKFT in stable kernels when there's been no relevant changes AFAIR it's not showing up terribly reliably there either.
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