smb: client: fix potential UAF in cifs_signal_cifsd_for_reconnect()
commit e0e50401cc
upstream.
Skip sessions that are being teared down (status == SES_EXITING) to
avoid UAF.
Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
aa582b33f9
commit
2cfff21732
|
@ -178,6 +178,8 @@ cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info *server,
|
|||
|
||||
spin_lock(&cifs_tcp_ses_lock);
|
||||
list_for_each_entry(ses, &pserver->smb_ses_list, smb_ses_list) {
|
||||
if (cifs_ses_exiting(ses))
|
||||
continue;
|
||||
spin_lock(&ses->chan_lock);
|
||||
for (i = 0; i < ses->chan_count; i++) {
|
||||
if (!ses->chans[i].server)
|
||||
|
|
Loading…
Reference in New Issue