Commit c30e92df authored by J. Bruce Fields's avatar J. Bruce Fields
Browse files

nfsd4: ignore WANT bits in open downgrade 



We don't use WANT bits yet--and sending them can probably trigger a
BUG() further down.

Cc: stable@kernel.org
Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent dcbf8c30

fs/nfsd/nfs4state.c

+2 −0
Original line number Diff line number Diff line
@@ -3574,6 +3574,8 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp, 
	if (!access_valid(od->od_share_access, cstate->minorversion)

			|| !deny_valid(od->od_share_deny))

		return nfserr_inval;

	/* We don't yet support WANT bits: */

	od->od_share_access &= NFS4_SHARE_ACCESS_MASK;



	nfs4_lock_state();

	status = nfs4_preprocess_confirmed_seqid_op(cstate, od->od_seqid,