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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2005-10-04 16:00:39 -0400
committerDavid S. Miller <davem@davemloft.net>2005-10-04 16:00:39 -0400
commit87bf9c97b4b3af8dec7b2b79cdfe7bfc0a0a03b2 (patch)
tree4db874d395f55023d579947a63fccd3ccfcaff77 /net/ipv6
parentdd7205ed0f022a2a5e60eb7404e6c9f49d2301c3 (diff)
[IPV6]: Fix infinite loop in udp_v6_get_port().
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/udp.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index e4cad11f284a..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)
99 next:; 99 next:;
100 } 100 }
101 result = best; 101 result = best;
102 for(;; result += UDP_HTABLE_SIZE) { 102 for(i = 0; i < (1 << 16) / UDP_HTABLE_SIZE; i++, result += UDP_HTABLE_SIZE) {
103 if (result > sysctl_local_port_range[1]) 103 if (result > sysctl_local_port_range[1])
104 result = sysctl_local_port_range[0] 104 result = sysctl_local_port_range[0]
105 + ((result - sysctl_local_port_range[0]) & 105 + ((result - sysctl_local_port_range[0]) &
@@ -107,6 +107,8 @@ static int udp_v6_get_port(struct sock *sk, unsigned short snum)
107 if (!udp_lport_inuse(result)) 107 if (!udp_lport_inuse(result))
108 break; 108 break;
109 } 109 }
110 if (i >= (1 << 16) / UDP_HTABLE_SIZE)
111 goto fail;
110gotit: 112gotit:
111 udp_port_rover = snum = result; 113 udp_port_rover = snum = result;
112 } else { 114 } else {