forked from luck/tmp_suning_uos_patched
SUNRPC: rpc_decode_header() must always return a non-zero value on error
Ensure that when the "garbage args" case falls through, we do set
an error of EIO.
Fixes: a0584ee9ae
("SUNRPC: Use struct xdr_stream when decoding...")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
parent
27adc78592
commit
eb90a16e90
|
@ -2454,7 +2454,7 @@ static noinline int
|
|||
rpc_decode_header(struct rpc_task *task, struct xdr_stream *xdr)
|
||||
{
|
||||
struct rpc_clnt *clnt = task->tk_client;
|
||||
int error = -EACCES;
|
||||
int error;
|
||||
__be32 *p;
|
||||
|
||||
/* RFC-1014 says that the representation of XDR data must be a
|
||||
|
@ -2463,7 +2463,7 @@ rpc_decode_header(struct rpc_task *task, struct xdr_stream *xdr)
|
|||
* undefined results
|
||||
*/
|
||||
if (task->tk_rqstp->rq_rcv_buf.len & 3)
|
||||
goto out_badlen;
|
||||
goto out_unparsable;
|
||||
|
||||
p = xdr_inline_decode(xdr, 3 * sizeof(*p));
|
||||
if (!p)
|
||||
|
@ -2498,9 +2498,10 @@ rpc_decode_header(struct rpc_task *task, struct xdr_stream *xdr)
|
|||
goto out_err;
|
||||
case rpc_garbage_args:
|
||||
trace_rpc__garbage_args(task);
|
||||
error = -EIO;
|
||||
break;
|
||||
default:
|
||||
trace_rpc__unparsable(task);
|
||||
goto out_unparsable;
|
||||
}
|
||||
|
||||
out_garbage:
|
||||
|
@ -2514,11 +2515,6 @@ rpc_decode_header(struct rpc_task *task, struct xdr_stream *xdr)
|
|||
rpc_exit(task, error);
|
||||
return error;
|
||||
|
||||
out_badlen:
|
||||
trace_rpc__unparsable(task);
|
||||
error = -EIO;
|
||||
goto out_err;
|
||||
|
||||
out_unparsable:
|
||||
trace_rpc__unparsable(task);
|
||||
error = -EIO;
|
||||
|
@ -2529,6 +2525,7 @@ rpc_decode_header(struct rpc_task *task, struct xdr_stream *xdr)
|
|||
goto out_garbage;
|
||||
|
||||
out_msg_denied:
|
||||
error = -EACCES;
|
||||
p = xdr_inline_decode(xdr, sizeof(*p));
|
||||
if (!p)
|
||||
goto out_unparsable;
|
||||
|
@ -2540,9 +2537,7 @@ rpc_decode_header(struct rpc_task *task, struct xdr_stream *xdr)
|
|||
error = -EPROTONOSUPPORT;
|
||||
goto out_err;
|
||||
default:
|
||||
trace_rpc__unparsable(task);
|
||||
error = -EIO;
|
||||
goto out_err;
|
||||
goto out_unparsable;
|
||||
}
|
||||
|
||||
p = xdr_inline_decode(xdr, sizeof(*p));
|
||||
|
@ -2577,8 +2572,7 @@ rpc_decode_header(struct rpc_task *task, struct xdr_stream *xdr)
|
|||
task->tk_xprt->servername);
|
||||
break;
|
||||
default:
|
||||
trace_rpc__unparsable(task);
|
||||
error = -EIO;
|
||||
goto out_unparsable;
|
||||
}
|
||||
goto out_err;
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue
Block a user