craa_type_mask is bitmap4 according to RFC5661. We need to expect a length before
extracting its value.
Signed-off-by: Peng Tao <peng_tao@xxxxxxx>
---
Resend this one as it is a dependency for "[PATCH 2/2] nfs41: handle BLK_LAYOUT CB_RECALL_ANY".
fs/nfs/callback_xdr.c | 11 ++++++-----
1 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 918ad64..ee1a5b3 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -488,17 +488,18 @@ static __be32 decode_recallany_args(struct svc_rqst *rqstp,
struct xdr_stream *xdr,
struct cb_recallanyargs *args)
{
- __be32 *p;
+ uint32_t bitmap[2];
+ __be32 *p, status;
args->craa_addr = svc_addr(rqstp);
p = read_buf(xdr, 4);
if (unlikely(p == NULL))
return htonl(NFS4ERR_BADXDR);
args->craa_objs_to_keep = ntohl(*p++);
- p = read_buf(xdr, 4);
- if (unlikely(p == NULL))
- return htonl(NFS4ERR_BADXDR);
- args->craa_type_mask = ntohl(*p);
+ status = decode_bitmap(xdr, bitmap);
+ if (unlikely(status))
+ return status;
+ args->craa_type_mask = bitmap[0];
return 0;
}
--
1.7.1.262.g5ef3d
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