This is a note to let you know that I've just added the patch titled
NFSD: Replace READ* macros in nfsd4_decode_verify()
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_verify.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 7692c739868a12c60188268865572bd997cadd79
Author: Chuck Lever <chuck.lever@xxxxxxxxxx>
Date: Tue Nov 3 14:40:32 2020 -0500
NFSD: Replace READ* macros in nfsd4_decode_verify()
[ Upstream commit 67cd453eeda86be90f83a0f4798f33832cf2d98c ]
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 057cc1579f9b8..231a2628e3e6f 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1370,20 +1370,27 @@ nfsd4_decode_setclientid_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_s
static __be32
nfsd4_decode_verify(struct nfsd4_compoundargs *argp, struct nfsd4_verify *verify)
{
- DECODE_HEAD;
+ __be32 *p, status;
- if ((status = nfsd4_decode_bitmap(argp, verify->ve_bmval)))
- goto out;
+ status = nfsd4_decode_bitmap4(argp, verify->ve_bmval,
+ ARRAY_SIZE(verify->ve_bmval));
+ if (status)
+ return status;
/* For convenience's sake, we compare raw xdr'd attributes in
* nfsd4_proc_verify */
- READ_BUF(4);
- verify->ve_attrlen = be32_to_cpup(p++);
- READ_BUF(verify->ve_attrlen);
- SAVEMEM(verify->ve_attrval, verify->ve_attrlen);
+ if (xdr_stream_decode_u32(argp->xdr, &verify->ve_attrlen) < 0)
+ return nfserr_bad_xdr;
+ p = xdr_inline_decode(argp->xdr, verify->ve_attrlen);
+ if (!p)
+ return nfserr_bad_xdr;
+ verify->ve_attrval = svcxdr_tmpalloc(argp, verify->ve_attrlen);
+ if (!verify->ve_attrval)
+ return nfserr_jukebox;
+ memcpy(verify->ve_attrval, p, verify->ve_attrlen);
- DECODE_TAIL;
+ return nfs_ok;
}
static __be32
