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nfsd41: nfsd4_decode_compound() does not recognize all ops 

The server incorrectly assumes that the operations in the
array start with value 0.  The first operation (OP_ACCESS)
has a value of 3, causing the check in nfsd4_decode_compound
to be off.

Instead of comparing that the operation number is less than
the number of elements in the array, the server should verify
that it is less than the maximum valid operation number
defined by LAST_NFS4_OP.

Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Ricardo Labiaga 2009-12-11 19:10:49 -08:00 committed by J. Bruce Fields
parent 7284ce6c9f
commit c551866e64
1 changed files with 1 additions and 1 deletions
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2
fs/nfsd/nfs4xdr.c
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@ -1434,7 +1434,7 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
}
op->opnum = ntohl(*argp->p++);
if (op->opnum >= OP_ACCESS && op->opnum < ops->nops)
if (op->opnum >= OP_ACCESS && op->opnum <= LAST_NFS4_OP)
op->status = ops->decoders[op->opnum](argp, &op->u);
else {
op->opnum = OP_ILLEGAL;