aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/skbuff.h
diff options
context:
space:
mode:
authorPatrick McHardy <kaber@trash.net>2007-03-29 14:46:52 -0400
committerDavid S. Miller <davem@davemloft.net>2007-03-29 14:46:52 -0400
commitc01003c20563d1e75ec9828d21743919d2b43977 (patch)
tree21cae8933e8a4908d8e8c24244a627bf0c997e77 /include/linux/skbuff.h
parentdb8b22550d4b83f0910d27a34d05aa16f7f7159f (diff)
[IFB]: Fix crash on input device removal
The input_device pointer is not refcounted, which means the device may disappear while packets are queued, causing a crash when ifb passes packets with a stale skb->dev pointer to netif_rx(). Fix by storing the interface index instead and do a lookup where neccessary. Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r--include/linux/skbuff.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 4ff3940210d8..82f43ad478c7 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -188,7 +188,7 @@ enum {
188 * @sk: Socket we are owned by 188 * @sk: Socket we are owned by
189 * @tstamp: Time we arrived 189 * @tstamp: Time we arrived
190 * @dev: Device we arrived on/are leaving by 190 * @dev: Device we arrived on/are leaving by
191 * @input_dev: Device we arrived on 191 * @iif: ifindex of device we arrived on
192 * @h: Transport layer header 192 * @h: Transport layer header
193 * @nh: Network layer header 193 * @nh: Network layer header
194 * @mac: Link layer header 194 * @mac: Link layer header
@@ -235,7 +235,8 @@ struct sk_buff {
235 struct sock *sk; 235 struct sock *sk;
236 struct skb_timeval tstamp; 236 struct skb_timeval tstamp;
237 struct net_device *dev; 237 struct net_device *dev;
238 struct net_device *input_dev; 238 int iif;
239 /* 4 byte hole on 64 bit*/
239 240
240 union { 241 union {
241 struct tcphdr *th; 242 struct tcphdr *th;