diff options
Diffstat (limited to 'net/sched/cls_tcindex.c')
| -rw-r--r-- | net/sched/cls_tcindex.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c index 61e95029c18f..c9399e81c505 100644 --- a/net/sched/cls_tcindex.c +++ b/net/sched/cls_tcindex.c @@ -366,9 +366,13 @@ tcindex_set_parms(struct net *net, struct tcf_proto *tp, unsigned long base, if (tb[TCA_TCINDEX_MASK]) cp->mask = nla_get_u16(tb[TCA_TCINDEX_MASK]); - if (tb[TCA_TCINDEX_SHIFT]) + if (tb[TCA_TCINDEX_SHIFT]) { cp->shift = nla_get_u32(tb[TCA_TCINDEX_SHIFT]); - + if (cp->shift > 16) { + err = -EINVAL; + goto errout; + } + } if (!cp->hash) { /* Hash not specified, use perfect hash if the upper limit * of the hashing index is below the threshold. |