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authorAurelien Aptel <aaptel@suse.com>2020-02-06 13:49:26 +0100
committerSteve French <stfrench@microsoft.com>2020-02-06 12:42:36 -0600
commitcc95b6772790c476b2c2de09abec739120593d98 (patch)
tree68fb3fe74f2b403bfddc08490f2e041c9185de09 /fs/cifs
parentcifs: add SMB3 change notification support (diff)
downloadlinux-dev-cc95b6772790c476b2c2de09abec739120593d98.tar.xz
linux-dev-cc95b6772790c476b2c2de09abec739120593d98.zip
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 <aaptel@suse.com> Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/smb2transport.c5
1 files changed, 3 insertions, 2 deletions
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;
}