From f4fa7c25f632cd925352b4d46f245653a23b1d1a Mon Sep 17 00:00:00 2001 From: Andrea Righi Date: Wed, 29 Oct 2025 14:08:43 +0100 Subject: [PATCH] sched_ext: Fix use of uninitialized variable in scx_bpf_cpuperf_set() scx_bpf_cpuperf_set() has a typo where it dereferences the local variable @sch, instead of the global @scx_root pointer. Fix by dereferencing the correct variable. Fixes: 956f2b11a8a4f ("sched_ext: Drop kf_cpu_valid()") Signed-off-by: Andrea Righi Reviewed-by: Christian Loehle Signed-off-by: Tejun Heo --- kernel/sched/ext.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index ecb251e883eab..1a019a7728fb2 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -6401,7 +6401,7 @@ __bpf_kfunc void scx_bpf_cpuperf_set(s32 cpu, u32 perf) guard(rcu)(); - sch = rcu_dereference(sch); + sch = rcu_dereference(scx_root); if (unlikely(!sch)) return; -- 2.47.3