Re: [PATCH EEVDF NULL deref] sched/eevdf: Fix NULL deref when avg_vruntime nears overflow

[Peter Zijlstra]

On Wed, Nov 05, 2025 at 06:47:40PM +0800, Zicheng Qu wrote:
> This is the reproduction patch. We encountered a similar issue on a
> normally running kernel, and after analysis, we deliberately constructed
> a comparable scenario. Since it is difficult to control the conditions
> from user space, we proactively modified certain parts of the kernel
> code to simulate the issue (the code includes detailed explanations).

Thanks!

> As for the zero_vruntime patch, after applying it, we have not
> observed any crashes over than 24 hours.

Excellent, I'll go think about the SCHED_CORE case and make it a proper
patch then.