Re: [PATCH v0.9.1 3/6] sched/umcg: implement UMCG syscalls
From: Peter Zijlstra <peterz@infradead.org>
Date: 2021-11-24 22:18:48
Also in:
linux-mm, lkml
On Mon, Nov 22, 2021 at 01:13:24PM -0800, Peter Oskolkov wrote:
+die:
+ pr_warn("%s: killing task %d\n", __func__, current->pid);
+ force_sig(SIGKILL);That pr_warn() might need to be pr_warn_ratelimited() in order to no be a system log DoS. Because, AFAICT, you can craft userspace to trigger this arbitrarily often, just spawn a worker and make it misbehave.