Commit e0e50401 authored by Paulo Alcantara's avatar Paulo Alcantara Committed by Steve French
Browse files

smb: client: fix potential UAF in cifs_signal_cifsd_for_reconnect() 



Skip sessions that are being teared down (status == SES_EXITING) to
avoid UAF.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarPaulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 63981561

fs/smb/client/connect.c

+2 −0
Original line number Diff line number Diff line
@@ -175,6 +175,8 @@ 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)