This is a note to let you know that I've just added the patch titled
net_sched: red: Avoid devision by zero
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net_sched-red-avoid-devision-by-zero.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Fri Feb 23 11:48:40 CET 2018
From: Nogah Frankel <nogahf@xxxxxxxxxxxx>
Date: Mon, 4 Dec 2017 13:31:10 +0200
Subject: net_sched: red: Avoid devision by zero
From: Nogah Frankel <nogahf@xxxxxxxxxxxx>
[ Upstream commit 5c472203421ab4f928aa1ae9e1dbcfdd80324148 ]
Do not allow delta value to be zero since it is used as a divisor.
Fixes: 8af2a218de38 ("sch_red: Adaptative RED AQM")
Signed-off-by: Nogah Frankel <nogahf@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/net/red.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/net/red.h
+++ b/include/net/red.h
@@ -178,7 +178,7 @@ static inline void red_set_parms(struct
p->qth_max = qth_max << Wlog;
p->Wlog = Wlog;
p->Plog = Plog;
- if (delta < 0)
+ if (delta <= 0)
delta = 1;
p->qth_delta = delta;
if (!max_P) {
Patches currently in stable-queue which might be from nogahf@xxxxxxxxxxxx are
queue-4.9/net_sched-red-avoid-devision-by-zero.patch
queue-4.9/net_sched-red-avoid-illegal-values.patch