sctp: limit maximum autoclose setsockopt value

To avoid overflowing the maximum timer interval when transforming
the  autoclose interval from seconds to jiffies, limit the maximum
autoclose value to MAX_SCHEDULE_TIMEOUT/HZ.

Signed-off-by: Andrei Pelinescu-Onciul <andrei@iptel.org>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
This commit is contained in:
Andrei Pelinescu-Onciul 2009-11-23 15:54:01 -05:00 committed by Vlad Yasevich
parent d8dd15781d
commit f6778aab6c

View File

@ -2086,6 +2086,9 @@ static int sctp_setsockopt_autoclose(struct sock *sk, char __user *optval,
return -EINVAL;
if (copy_from_user(&sp->autoclose, optval, optlen))
return -EFAULT;
/* make sure it won't exceed MAX_SCHEDULE_TIMEOUT */
if (sp->autoclose > (MAX_SCHEDULE_TIMEOUT / HZ) )
sp->autoclose = MAX_SCHEDULE_TIMEOUT / HZ ;
return 0;
}