]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[NET_SCHED]: cls_fw: fix NULL pointer dereference
authorPatrick McHardy <kaber@trash.net>
Tue, 5 Dec 2006 21:46:13 +0000 (13:46 -0800)
committerDavid S. Miller <davem@sunset.davemloft.net>
Thu, 7 Dec 2006 02:39:07 +0000 (18:39 -0800)
commit5c804bfdcca2593422dd6edc2d7db4dba645543c
treeb8b0993a2855372b037f6bbef2f4b67908b16ce8
parentf216f082b2b37c4943f1e7c393e2786648d48f6f
[NET_SCHED]: cls_fw: fix NULL pointer dereference

When the first fw classifier is initialized, there is a small window
between the ->init() and ->change() calls, during which the classifier
is active but not entirely set up and tp->root is still NULL (->init()
does nothing).

When a packet is queued during this window a NULL pointer dereference
occurs in fw_classify() when trying to dereference head->mask;

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/sched/cls_fw.c