3.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: "J. Bruce Fields" <bfields@xxxxxxxxxx>
commit 27b11428b7de097c42f205beabb1764f4365443b upstream.
The current code assumes a one-to-one lockowner<->lock stateid
correspondance.
Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/nfsd/nfs4state.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -4156,6 +4156,10 @@ static bool same_lockowner_ino(struct nf
if (!same_owner_str(&lo->lo_owner, owner, clid))
return false;
+ if (list_empty(&lo->lo_owner.so_stateids)) {
+ WARN_ON_ONCE(1);
+ return false;
+ }
lst = list_first_entry(&lo->lo_owner.so_stateids,
struct nfs4_ol_stateid, st_perstateowner);
return lst->st_file->fi_inode == inode;
--
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