This is a note to let you know that I've just added the patch titled
NFSD: Replace READ* macros in nfsd4_decode_lockt()
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_lockt.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 809ccbe50d19aa703a91c708b4b95ae3f887204a
Author: Chuck Lever <chuck.lever@xxxxxxxxxx>
Date: Tue Nov 3 13:31:44 2020 -0500
NFSD: Replace READ* macros in nfsd4_decode_lockt()
[ Upstream commit 0a146f04aa0fa7a57aaed3913d1c2732b3853f31 ]
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 b50d2987bb6e8..4f2680650a567 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -894,20 +894,16 @@ nfsd4_decode_lock(struct nfsd4_compoundargs *argp, struct nfsd4_lock *lock)
static __be32
nfsd4_decode_lockt(struct nfsd4_compoundargs *argp, struct nfsd4_lockt *lockt)
{
- DECODE_HEAD;
-
- READ_BUF(32);
- lockt->lt_type = be32_to_cpup(p++);
- if((lockt->lt_type < NFS4_READ_LT) || (lockt->lt_type > NFS4_WRITEW_LT))
- goto xdr_error;
- p = xdr_decode_hyper(p, &lockt->lt_offset);
- p = xdr_decode_hyper(p, &lockt->lt_length);
- COPYMEM(&lockt->lt_clientid, 8);
- lockt->lt_owner.len = be32_to_cpup(p++);
- READ_BUF(lockt->lt_owner.len);
- READMEM(lockt->lt_owner.data, lockt->lt_owner.len);
-
- DECODE_TAIL;
+ if (xdr_stream_decode_u32(argp->xdr, &lockt->lt_type) < 0)
+ return nfserr_bad_xdr;
+ if ((lockt->lt_type < NFS4_READ_LT) || (lockt->lt_type > NFS4_WRITEW_LT))
+ return nfserr_bad_xdr;
+ if (xdr_stream_decode_u64(argp->xdr, &lockt->lt_offset) < 0)
+ return nfserr_bad_xdr;
+ if (xdr_stream_decode_u64(argp->xdr, &lockt->lt_length) < 0)
+ return nfserr_bad_xdr;
+ return nfsd4_decode_state_owner4(argp, &lockt->lt_clientid,
+ &lockt->lt_owner);
}
static __be32
