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NFSv4.2: decode_read_plus_data() must skip padding after data segment 

All XDR opaque object sizes are 32-bit aligned, and a data segment is no
exception.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2020-12-08 07:40:04 -05:00
parent 1ee6310119
commit 5c4afe2ab6
1 changed files with 3 additions and 1 deletions
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4
fs/nfs/nfs42xdr.c
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@ -1038,7 +1038,9 @@ static int decode_read_plus_data(struct xdr_stream *xdr, struct nfs_pgio_res *re
p = xdr_decode_hyper(p, &offset);
count = be32_to_cpup(p);
recvd = xdr_align_data(xdr, res->count, count);
recvd = xdr_align_data(xdr, res->count, xdr_align_size(count));
if (recvd > count)
recvd = count;
res->count += recvd;
if (count > recvd) {