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-rw-r--r--net/core/sock_diag.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
index d79866c5f8bc..817622f3dbb7 100644
--- a/net/core/sock_diag.c
+++ b/net/core/sock_diag.c
@@ -90,6 +90,9 @@ int sock_diag_put_filterinfo(bool may_report_filterinfo, struct sock *sk,
goto out;
fprog = filter->prog->orig_prog;
+ if (!fprog)
+ goto out;
+
flen = bpf_classic_proglen(fprog);
attr = nla_reserve(skb, attrtype, flen);