diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c index da3d328f5c15..f97d4aa9d038 100644 --- a/kernel/bpf/stackmap.c +++ b/kernel/bpf/stackmap.c @@ -460,7 +460,7 @@ static long __bpf_get_stack(struct pt_regs *regs, struct task_struct *task, max_depth = stack_map_calculate_max_depth(size, elem_size, flags); - if (may_fault) + if (!trace_in) rcu_read_lock(); /* need RCU for perf's callchain below */ if (trace_in) { @@ -474,7 +474,7 @@ static long __bpf_get_stack(struct pt_regs *regs, struct task_struct *task, } if (unlikely(!trace) || trace->nr < skip) { - if (may_fault) + if (!trace_in) rcu_read_unlock(); goto err_fault; } @@ -494,7 +494,7 @@ static long __bpf_get_stack(struct pt_regs *regs, struct task_struct *task, } /* trace/ips should not be dereferenced after this point */ - if (may_fault) + if (!trace_in) rcu_read_unlock(); if (user_build_id)