smb: client: fix potential UAF in cifs_stats_proc_write()
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>
This commit is contained in:
parent
58acd1f497
commit
d3da25c5ac
@ -678,6 +678,8 @@ static ssize_t cifs_stats_proc_write(struct file *file,
|
||||
}
|
||||
#endif /* CONFIG_CIFS_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) {
|
||||
atomic_set(&tcon->num_smbs_sent, 0);
|
||||
spin_lock(&tcon->stat_lock);
|
||||
|
Loading…
x
Reference in New Issue
Block a user