Re: [PATCH -next] cgroup/cpuset: fix null-ptr-deref in rebuild_sched_domains_cpuslocked

From: Tejun Heo

Date: Wed Feb 25 2026 - 12:41:13 EST


Hello,

Applied to cgroup/for-7.0-fixes with the following modification:

- Moved the NULL check into the for-loop condition per Waiman's
suggestion.

- for (i = 0; i < ndoms; ++i) {
- if (doms && WARN_ON_ONCE(!cpumask_subset(doms[i],
- cpu_active_mask)))
+ for (i = 0; doms && i < ndoms; i++) {
+ if (WARN_ON_ONCE(!cpumask_subset(doms[i], cpu_active_mask)))

Thanks.

--
tejun