6.6-stable review patch. If anyone has any objections, please let me know.
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From: Paul Aurich paul@darkrain42.org
[ 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@darkrain42.org Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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);