diff options
Diffstat (limited to 'net/ipv6/udp.c')
| -rw-r--r-- | net/ipv6/udp.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 6001948600f3..bf9519341fd3 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -99,7 +99,7 @@ static int udp_v6_get_port(struct sock *sk, unsigned short snum) next:; } result = best; - for(;; result += UDP_HTABLE_SIZE) { + for(i = 0; i < (1 << 16) / UDP_HTABLE_SIZE; i++, result += UDP_HTABLE_SIZE) { if (result > sysctl_local_port_range[1]) result = sysctl_local_port_range[0] + ((result - sysctl_local_port_range[0]) & @@ -107,6 +107,8 @@ static int udp_v6_get_port(struct sock *sk, unsigned short snum) if (!udp_lport_inuse(result)) break; } + if (i >= (1 << 16) / UDP_HTABLE_SIZE) + goto fail; gotit: udp_port_rover = snum = result; } else { @@ -852,10 +854,16 @@ do_append_data: else if (!corkreq) err = udp_v6_push_pending_frames(sk, up); - if (dst && connected) - ip6_dst_store(sk, dst, - ipv6_addr_equal(&fl->fl6_dst, &np->daddr) ? - &np->daddr : NULL); + if (dst) { + if (connected) { + ip6_dst_store(sk, dst, + ipv6_addr_equal(&fl->fl6_dst, &np->daddr) ? + &np->daddr : NULL); + } else { + dst_release(dst); + } + } + if (err > 0) err = np->recverr ? net_xmit_errno(err) : 0; release_sock(sk); |