diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index dbdc5e8..b009da1 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -182,6 +182,7 @@ nfsd_proc_read(struct svc_rqst *rqstp)
 		argp->count, argp->offset);
 
 	argp->count = min_t(u32, argp->count, NFSSVC_MAXBLKSIZE_V2);
+	argp->count = min_t(u32, argp->count, rqstp->rq_res.buflen);
 
 	v = 0;
 	len = argp->count;