---------- Forwarded message ----------
Date: Tue, 25 Jul 2006 16:38:05 +0900
From: [EMAIL PROTECTED]
To: linux-kernel@vger.kernel.org
Subject: [PATCH][IPv4/IPv6] Setting 0 for unused port field.
Hello.
The recvmsg() for raw socket seems to return random u16 value
from the kernel stack memory since port field is not initialized.
But I'm not sure this patch is correct.
Does raw socket return any information stored in port field?
---------- Start of patch ----------
diff -ur before/net/ipv4/raw.c after/net/ipv4/raw.c
--- before/net/ipv4/raw.c 2006-06-18 10:49:35.000000000 +0900
+++ after/net/ipv4/raw.c 2006-07-25 16:15:26.000000000 +0900
@@ -609,6 +609,7 @@
if (sin) {
sin->sin_family = AF_INET;
sin->sin_addr.s_addr = skb->nh.iph->saddr;
+ sin->sin_port = 0;
memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
}
if (inet->cmsg_flags)
diff -ur before/net/ipv6/raw.c after/net/ipv6/raw.c
--- before/net/ipv6/raw.c 2006-06-18 10:49:35.000000000 +0900
+++ after/net/ipv6/raw.c 2006-07-25 16:16:52.000000000 +0900
@@ -411,6 +411,7 @@
/* Copy the address. */
if (sin6) {
sin6->sin6_family = AF_INET6;
+ sin6->sin6_port = 0;
ipv6_addr_copy(&sin6->sin6_addr, &skb->nh.ipv6h->saddr);
sin6->sin6_flowinfo = 0;
sin6->sin6_scope_id = 0;
---------- End of patch ----------
Regards.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
