Prev: [09/45] r8169: Fix receive buffer length when MTU is between 1515 and 1536
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From: Greg KH on 30 Mar 2010 19:10
2.6.27-stable review patch. If anyone has any objections, please let us know.

------------------

From: Sascha Hlusiak <contact(a)saschahlusiak.de>

commit 298bf12ddb25841804f26234a43b89da1b1c0e21 upstream.

When requesting all prl entries (kprl.addr == INADDR_ANY) and there are
more prl entries than there is space passed from userspace, the existing
code would always copy cmax+1 entries, which is more than can be handled.

This patch makes the kernel copy only exactly cmax entries.

Signed-off-by: Sascha Hlusiak <contact(a)saschahlusiak.de>
Acked-By: Fred L. Templin <Fred.L.Templin(a)boeing.com>
Signed-off-by: David S. Miller <davem(a)davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de>

---
net/ipv6/sit.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -260,7 +260,7 @@ static int ipip6_tunnel_get_prl(struct i

c = 0;
for (prl = t->prl; prl; prl = prl->next) {
- if (c > cmax)
+ if (c >= cmax)
break;
if (kprl.addr != htonl(INADDR_ANY) && prl->addr != kprl.addr)
continue;


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Prev: [09/45] r8169: Fix receive buffer length when MTU is between 1515 and 1536
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