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Revision bdfc87f7d1e253e0a61e2fc6a75ea9d76f7fc03a authored by Eric Dumazet on 11 September 2012, 13:11:12 UTC, committed by David S. Miller on 12 September 2012, 02:20:43 UTC 
net-sched: sch_cbq: avoid infinite loop
 
Its possible to setup a bad cbq configuration leading to
an infinite loop in cbq_classify()

DEV_OUT=eth0
ICMP="match ip protocol 1 0xff"
U32="protocol ip u32"
DST="match ip dst"
tc qdisc add dev $DEV_OUT root handle 1: cbq avpkt 1000 \
	bandwidth 100mbit
tc class add dev $DEV_OUT parent 1: classid 1:1 cbq \
	rate 512kbit allot 1500 prio 5 bounded isolated
tc filter add dev $DEV_OUT parent 1: prio 3 $U32 \
	$ICMP $DST 192.168.3.234 flowid 1:

Reported-by: Denys Fedoryschenko <denys@visp.net.lb>
Tested-by: Denys Fedoryschenko <denys@visp.net.lb>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent b48d6f8
Raw File
Kconfig 
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
mainmenu "Linux/$ARCH $KERNELVERSION Kernel Configuration"

config SRCARCH
	string
	option env="SRCARCH"

source "arch/$SRCARCH/Kconfig"
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