From ad2ad0f96546d6d56b2665bcc863c33ae57c49c4 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Sat, 4 Feb 2006 02:13:57 -0800 Subject: [NETFILTER]: Fix undersized skb allocation in ipt_ULOG/ebt_ulog/nfnetlink_log The skb allocated is always of size nlbufsize, even if that is smaller than the size needed for the current packet. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/bridge/netfilter/ebt_ulog.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'net/bridge') diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c index dbbf9f673b55..802baf755ef4 100644 --- a/net/bridge/netfilter/ebt_ulog.c +++ b/net/bridge/netfilter/ebt_ulog.c @@ -98,12 +98,14 @@ static void ulog_timer(unsigned long data) static struct sk_buff *ulog_alloc_skb(unsigned int size) { struct sk_buff *skb; + unsigned int n; - skb = alloc_skb(nlbufsiz, GFP_ATOMIC); + n = max(size, nlbufsiz); + skb = alloc_skb(n, GFP_ATOMIC); if (!skb) { PRINTR(KERN_ERR "ebt_ulog: can't alloc whole buffer " - "of size %ub!\n", nlbufsiz); - if (size < nlbufsiz) { + "of size %ub!\n", n); + if (n > size) { /* try to allocate only as much as we need for * current packet */ skb = alloc_skb(size, GFP_ATOMIC); -- cgit v1.2.1