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-rw-r--r--net/sctp/socket.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index bb5c9ef13046..afa952e726d7 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -3144,6 +3144,11 @@ static int sctp_setsockopt_auth_key(struct sock *sk,
goto out;
}
+ if (authkey->sca_keylength > optlen) {
+ ret = -EINVAL;
+ goto out;
+ }
+
asoc = sctp_id2assoc(sk, authkey->sca_assoc_id);
if (!asoc && authkey->sca_assoc_id && sctp_style(sk, UDP)) {
ret = -EINVAL;

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