diff options
| author | Nogah Frankel <nogahf@mellanox.com> | 2017-12-04 13:31:11 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-05 14:37:13 -0500 |
| commit | 8afa10cbe281b10371fee5a87ab266e48d71a7f9 (patch) | |
| tree | f821390027974ff7b78d22df3862e181bea9d2ca /net/sched/sch_red.c | |
| parent | 5c472203421ab4f928aa1ae9e1dbcfdd80324148 (diff) | |
net_sched: red: Avoid illegal values
Check the qmin & qmax values doesn't overflow for the given Wlog value.
Check that qmin <= qmax.
Fixes: a783474591f2 ("[PKT_SCHED]: Generic RED layer")
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_red.c')
| -rw-r--r-- | net/sched/sch_red.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c index 7f8ea9e297c3..9d874e60e032 100644 --- a/net/sched/sch_red.c +++ b/net/sched/sch_red.c @@ -212,6 +212,8 @@ static int red_change(struct Qdisc *sch, struct nlattr *opt) max_P = tb[TCA_RED_MAX_P] ? nla_get_u32(tb[TCA_RED_MAX_P]) : 0; ctl = nla_data(tb[TCA_RED_PARMS]); + if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog)) + return -EINVAL; if (ctl->limit > 0) { child = fifo_create_dflt(sch, &bfifo_qdisc_ops, ctl->limit); |