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%3Ba=su...
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@vger.kernel.org know about it.
From foo@baz Fri Feb 23 11:48:40 CET 2018
From: Nogah Frankel nogahf@mellanox.com Date: Mon, 4 Dec 2017 13:31:10 +0200 Subject: net_sched: red: Avoid devision by zero
From: Nogah Frankel nogahf@mellanox.com
[ 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@mellanox.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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@mellanox.com are
queue-4.9/net_sched-red-avoid-devision-by-zero.patch queue-4.9/net_sched-red-avoid-illegal-values.patch