diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index de816063ae63..782d939c38cd 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -5263,8 +5263,8 @@ static int check_max_stack_depth_subprog(struct bpf_verifier_env *env, int idx, if (!priv_stack_supported) subprog[idx].priv_stack_mode = NO_PRIV_STACK; - if (subprog[idx].has_tail_call) - tail_call_reachable = true; + /* sync tail_call_reachable with callee state on entry */ + tail_call_reachable = subprog[idx].has_tail_call; frame = bpf_subprog_is_global(env, idx) ? 0 : frame + 1; if (frame >= MAX_CALL_FRAMES) {