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-rw-r--r--kernel/bpf/verifier.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index a0482e1c4a77..034ef81f935b 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -9636,7 +9636,10 @@ static int check_attach_btf_id(struct bpf_verifier_env *env)
ret = -EINVAL;
goto out;
}
- addr = (long) tgt_prog->aux->func[subprog]->bpf_func;
+ if (subprog == 0)
+ addr = (long) tgt_prog->bpf_func;
+ else
+ addr = (long) tgt_prog->aux->func[subprog]->bpf_func;
} else {
addr = kallsyms_lookup_name(tname);
if (!addr) {