Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf...

[platform/kernel/linux-rpi.git] / kernel / bpf / verifier.c

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 584eb34..0b9da95 100644 (file)
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -5643,8 +5643,9 @@ continue_func:
                                verbose(env, "verifier bug. subprog has tail_call and async cb\n");
                                return -EFAULT;
                        }
-                        /* async callbacks don't increase bpf prog stack size */
-                       continue;
+                       /* async callbacks don't increase bpf prog stack size unless called directly */
+                       if (!bpf_pseudo_call(insn + i))
+                               continue;
                }
                i = next_insn;