aboutsummaryrefslogtreecommitdiffstats
path: root/net/sched
diff options
context:
space:
mode:
authorDan Carpenter <error27@gmail.com>2010-10-03 22:28:36 -0400
committerDavid S. Miller <davem@davemloft.net>2010-10-05 03:40:39 -0400
commit4e18b3edf71f5d4ad653e3c2ff6560878e965f96 (patch)
tree63487292026992afbf5226f44bec12a1264686e9 /net/sched
parent51e97a12bef19b7e43199fc153cf9bd5f2140362 (diff)
cls_u32: signedness bug
skb_headroom() is unsigned so "skb_headroom(skb) + toff" is also unsigned and can't be less than zero. This test was added in 66d50d25: "u32: negative offset fix" It was supposed to fix a regression. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/cls_u32.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 7416a5c73b2a..b0c2a82178af 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -137,7 +137,7 @@ next_knode:
137 int toff = off + key->off + (off2 & key->offmask); 137 int toff = off + key->off + (off2 & key->offmask);
138 __be32 *data, _data; 138 __be32 *data, _data;
139 139
140 if (skb_headroom(skb) + toff < 0) 140 if (skb_headroom(skb) + toff > INT_MAX)
141 goto out; 141 goto out;
142 142
143 data = skb_header_pointer(skb, toff, 4, &_data); 143 data = skb_header_pointer(skb, toff, 4, &_data);