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| author | Nogah Frankel <nogahf@mellanox.com> | 2017-12-04 14:31:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-25 13:07:59 +0300 |
| commit | 8001a37b83c4b716936a40ab451b75d9f43d0c6b (patch) | |
| tree | 2c2a24d1bc702f9e2c6615b7614eb3ee9f855cd4 /net/sched/sch_sfq.c | |
| parent | e428e8ce3a008852e56e25c2fab4bc14c9f16915 (diff) | |
| download | linux-8001a37b83c4b716936a40ab451b75d9f43d0c6b.tar.xz | |
net_sched: red: Avoid illegal values
[ Upstream commit 8afa10cbe281b10371fee5a87ab266e48d71a7f9 ]
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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/sched/sch_sfq.c')
| -rw-r--r-- | net/sched/sch_sfq.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c index 74ea863b8240..3fbf20126045 100644 --- a/net/sched/sch_sfq.c +++ b/net/sched/sch_sfq.c @@ -637,6 +637,9 @@ static int sfq_change(struct Qdisc *sch, struct nlattr *opt) if (ctl->divisor && (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536)) return -EINVAL; + if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max, + ctl_v1->Wlog)) + return -EINVAL; if (ctl_v1 && ctl_v1->qth_min) { p = kmalloc(sizeof(*p), GFP_KERNEL); if (!p) |