Commit 0865ffef authored by Paulo Alcantara's avatar Paulo Alcantara Committed by Steve French
Browse files

smb: client: fix potential UAF in cifs_stats_proc_show() 



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 d3da25c5

fs/smb/client/cifs_debug.c

+2 −0
Original line number Diff line number Diff line
@@ -759,6 +759,8 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v) 
			}

#endif /* STATS2 */

		list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {

			if (cifs_ses_exiting(ses))

				continue;

			list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {

				i++;

				seq_printf(m, "\n%d) %s", i, tcon->tree_name);