This is a note to let you know that I've just added the patch titled NFSD: Replace READ* macros in nfsd4_decode_open_downgrade() 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-replace-read-macros-in-nfsd4_decode_open_downgr.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 c45eb1fbbed91b008d22d90fcbbb59e1b4bb8645 Author: Chuck Lever <chuck.lever@xxxxxxxxxx> Date: Tue Nov 3 14:21:01 2020 -0500 NFSD: Replace READ* macros in nfsd4_decode_open_downgrade() [ Upstream commit dca71651f097ea608945d7a66bf62761a630de9a ] Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 7b6fb11cdc809..95c755473899f 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -1172,21 +1172,19 @@ nfsd4_decode_open_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_open_con static __be32 nfsd4_decode_open_downgrade(struct nfsd4_compoundargs *argp, struct nfsd4_open_downgrade *open_down) { - DECODE_HEAD; - - status = nfsd4_decode_stateid(argp, &open_down->od_stateid); + __be32 status; + + status = nfsd4_decode_stateid4(argp, &open_down->od_stateid); if (status) return status; - READ_BUF(4); - open_down->od_seqid = be32_to_cpup(p++); + if (xdr_stream_decode_u32(argp->xdr, &open_down->od_seqid) < 0) + return nfserr_bad_xdr; + /* deleg_want is ignored */ status = nfsd4_decode_share_access(argp, &open_down->od_share_access, &open_down->od_deleg_want, NULL); if (status) return status; - status = nfsd4_decode_share_deny(argp, &open_down->od_share_deny); - if (status) - return status; - DECODE_TAIL; + return nfsd4_decode_share_deny(argp, &open_down->od_share_deny); } static __be32