nfsd4: fix crash on unknown operation number

[firefly-linux-kernel-4.4.55.git] / fs / nfsd / nfs4proc.c

diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index f4bd578bed551451d15852e36e254d2e585cba11..0beb023f25ace63a8b4ec270eb69bdbaa3e19cbe 100644 (file)
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1272,7 +1272,8 @@ static bool need_wrongsec_check(struct svc_rqst *rqstp)
         */
        if (argp->opcnt == resp->opcnt)
                return false;
-
+       if (next->opnum == OP_ILLEGAL)
+               return false;
        nextd = OPDESC(next);
        /*
         * Rest of 2.6.3.1.1: certain operations will return WRONGSEC