6.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paul Aurich <paul@xxxxxxxxxxxxxx>
[ Upstream commit c353ee4fb119a2582d0e011f66a76a38f5cf984d ]
Avoid leaking a tcon ref when a lease break races with opening the
cached directory. Processing the leak break might take a reference to
the tcon in cached_dir_lease_break() and then fail to release the ref in
cached_dir_offload_close, since cfid->tcon is still NULL.
Fixes: ebe98f1447bb ("cifs: enable caching of directories for which a lease is held")
Signed-off-by: Paul Aurich <paul@xxxxxxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/smb/client/cached_dir.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/smb/client/cached_dir.c b/fs/smb/client/cached_dir.c
index 004349a7ab69d..9c0ef4195b582 100644
--- a/fs/smb/client/cached_dir.c
+++ b/fs/smb/client/cached_dir.c
@@ -227,6 +227,7 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
}
}
cfid->dentry = dentry;
+ cfid->tcon = tcon;
/*
* We do not hold the lock for the open because in case
@@ -298,7 +299,6 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
}
goto oshr_free;
}
- cfid->tcon = tcon;
cfid->is_open = true;
spin_lock(&cfids->cfid_list_lock);
--
2.43.0
