From cc95b6772790c476b2c2de09abec739120593d98 Mon Sep 17 00:00:00 2001 From: Aurelien Aptel Date: Thu, 6 Feb 2020 13:49:26 +0100 Subject: cifs: fix channel signing The server var was accidentally used as an iterator over the global list of connections, thus overwritten the passed argument. This resulted in the wrong signing key being returned for extra channels. Fix this by using a separate var to iterate. Signed-off-by: Aurelien Aptel Signed-off-by: Steve French Reviewed-by: Paulo Alcantara (SUSE) Reviewed-by: Pavel Shilovsky --- fs/cifs/smb2transport.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'fs/cifs') diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c index fe6acfce3390..08b703b7a15e 100644 --- a/fs/cifs/smb2transport.c +++ b/fs/cifs/smb2transport.c @@ -104,13 +104,14 @@ int smb2_get_sign_key(__u64 ses_id, struct TCP_Server_Info *server, u8 *key) { struct cifs_chan *chan; struct cifs_ses *ses = NULL; + struct TCP_Server_Info *it = NULL; int i; int rc = 0; spin_lock(&cifs_tcp_ses_lock); - list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) { - list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { + list_for_each_entry(it, &cifs_tcp_ses_list, tcp_ses_list) { + list_for_each_entry(ses, &it->smb_ses_list, smb_ses_list) { if (ses->Suid == ses_id) goto found; } -- cgit v1.2.3-59-g8ed1b