From: Daniele Fucini <dfucini@gmail.com>
To: netdev@vger.kernel.org
Cc: jhs@mojatatu.com, davem@davemloft.net, spender@grsecurity.net,
pageexec@freemail.hu, re.emese@gmail.com
Subject: size overflow in function qdisc_tree_decrease_qlen net/sched/sch_api.c
Date: Tue, 1 Dec 2015 02:00:05 +0100 [thread overview]
Message-ID: <20151201010005.GA23175@Fux-PC> (raw)
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Hello,
I'm using a Grsecurity patched kernel (version 4.2.6-201511282239) and
I'm getting system freezes due to PaX detecting a size overflow in
function qdisc_tree_decrease_qlen net/sched/sch_api.c:769 whenever I use
Transmission BitTorrent client.
On the Grsecurity forum I was told it's probably an unintended integer
underflow that I should report upstream.
Here's the relevant log:
https://gist.github.com/cf54ccbb12ea65e146d4
And here's the thread on Grsecurity forum:
https://forums.grsecurity.net/viewtopic.php?f=3&t=4327
Let me know if there's any other information you need to help debug
this.
Daniele
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next reply other threads:[~2015-12-01 1:00 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-01 1:00 Daniele Fucini [this message]
2015-12-01 4:50 ` size overflow in function qdisc_tree_decrease_qlen net/sched/sch_api.c Cong Wang
2015-12-01 11:19 ` Daniele Fucini
2015-12-01 14:06 ` Eric Dumazet
2015-12-01 14:10 ` Eric Dumazet
2015-12-01 16:13 ` PaX Team
2015-12-01 16:34 ` Eric Dumazet
2015-12-01 18:43 ` Cong Wang
2015-12-01 19:09 ` Eric Dumazet
2015-12-01 19:17 ` Cong Wang
2015-12-01 20:06 ` Eric Dumazet
2015-12-01 22:33 ` Eric Dumazet
2015-12-01 22:47 ` Cong Wang
2015-12-01 23:10 ` Eric Dumazet
2015-12-02 4:08 ` [PATCH net] net_sched: fix qdisc_tree_decrease_qlen() races Eric Dumazet
2015-12-03 19:59 ` David Miller
2015-12-01 22:40 ` size overflow in function qdisc_tree_decrease_qlen net/sched/sch_api.c Cong Wang
2015-12-01 14:15 ` Eric Dumazet
2015-12-01 19:13 ` Daniele Fucini
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