diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c
index 2365541c81dd..2db09ce39828 100644
--- a/kernel/bpf/stackmap.c
+++ b/kernel/bpf/stackmap.c
@@ -480,7 +480,7 @@ static long __bpf_get_stack(struct pt_regs *regs, struct task_struct *task,
 	}
 
 	trace_nr = trace->nr - skip;
-	copy_len = trace_nr * elem_size;
+	/*copy_len = trace_nr * elem_size;*/
 
 	ips = trace->ip + skip;
 	if (user_build_id) {
@@ -490,7 +490,7 @@ static long __bpf_get_stack(struct pt_regs *regs, struct task_struct *task,
 		for (i = 0; i < trace_nr; i++)
 			id_offs[i].ip = ips[i];
 	} else {
-		memcpy(buf, ips, copy_len);
+		memcpy(buf, ips, trace_nr);
 	}
 
 	/* trace/ips should not be dereferenced after this point */