This is a note to let you know that I've just added the patch titled NFSD: Update COMMIT3arg decoder to use struct xdr_stream to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: nfsd-update-commit3arg-decoder-to-use-struct-xdr_str.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 0f041039e00304542c513d260fbe4090fac31009 Author: Chuck Lever <chuck.lever@xxxxxxxxxx> Date: Tue Oct 20 14:41:56 2020 -0400 NFSD: Update COMMIT3arg decoder to use struct xdr_stream [ Upstream commit c8d26a0acfe77f0880e0acfe77e4209cf8f3a38b ] Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c index eb55be106a04e..bafb84c978616 100644 --- a/fs/nfsd/nfs3xdr.c +++ b/fs/nfsd/nfs3xdr.c @@ -601,14 +601,17 @@ nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, __be32 *p) int nfs3svc_decode_commitargs(struct svc_rqst *rqstp, __be32 *p) { + struct xdr_stream *xdr = &rqstp->rq_arg_stream; struct nfsd3_commitargs *args = rqstp->rq_argp; - p = decode_fh(p, &args->fh); - if (!p) + + if (!svcxdr_decode_nfs_fh3(xdr, &args->fh)) + return 0; + if (xdr_stream_decode_u64(xdr, &args->offset) < 0) + return 0; + if (xdr_stream_decode_u32(xdr, &args->count) < 0) return 0; - p = xdr_decode_hyper(p, &args->offset); - args->count = ntohl(*p++); - return xdr_argsize_check(rqstp, p); + return 1; } /*