diff --git a/include/net/tcp.h b/include/net/tcp.h index 077feeca6c99..2f456bed33ec 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -125,6 +125,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo); * to combine FIN-WAIT-2 timeout with * TIME-WAIT timer. */ +#define TCP_FIN_TIMEOUT_MAX (120 * HZ) /* max TCP_LINGER2 value (two minutes) */ #define TCP_DELACK_MAX ((unsigned)(HZ/5)) /* maximal time to delay before sending an ACK */ #if HZ >= 100 diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index e33abcff5608..c6c73b940709 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3067,8 +3067,8 @@ static int do_tcp_setsockopt(struct sock *sk, int level, case TCP_LINGER2: if (val < 0) tp->linger2 = -1; - else if (val > net->ipv4.sysctl_tcp_fin_timeout / HZ) - tp->linger2 = 0; + else if (val > TCP_FIN_TIMEOUT_MAX / HZ) + tp->linger2 = TCP_FIN_TIMEOUT_MAX; else tp->linger2 = val * HZ; break;