Hannes Frederic Sowa
b064d0d88a
ovs: limit ovs recursions in ovs_execute_actions to not corrupt stack ...
It was seen that defective configurations of openvswitch could overwrite
the STACK_END_MAGIC and cause a hard crash of the kernel because of too
many recursions within ovs.
This problem arises due to the high stack usage of openvswitch. The rest
of the kernel is fine with the current limit of 10 (RECURSION_LIMIT).
We use the already existing recursion counter in ovs_execute_actions to
implement an upper bound of 5 recursions.
Cc: Pravin Shelar <pshelar@ovn.org>
Cc: Simon Horman <simon.horman@netronome.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-18 12:09:45 -05:00
ovs: limit ovs recursions in ovs_execute_actions to not corrupt stack
2016-01-18 12:09:45 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-12-31 18:20:10 -05:00
openvswitch: Fix double-free on ip_defrag() errors
2015-10-27 19:32:14 -07:00
net: preserve IP control block during GSO segmentation
2016-01-15 14:35:24 -05:00
openvswitch: Fix egress tunnel info.
2015-10-22 19:39:25 -07:00
openvswitch: fix hangup on vxlan/gre/geneve device deletion
2015-12-03 14:29:25 -05:00
openvswitch: add tunnel protocol to sw_flow_key
2015-10-07 04:17:59 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-10-20 06:08:27 -07:00
openvswitch: correct encoding of set tunnel action attributes
2015-12-18 16:35:35 -05:00
openvswitch: Fix egress tunnel info.
2015-10-22 19:39:25 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-10-20 06:08:27 -07:00
openvswitch: Zero flows on allocation.
2015-09-22 17:33:41 -07:00
openvswitch: Fix dependency on IPv6 defrag.
2015-09-11 15:39:04 -07:00
openvswitch: Remove conntrack Kconfig option.
2015-09-06 23:48:33 -07:00
openvswitch: fix struct geneve_port member name
2016-01-10 23:49:21 -05:00
openvswitch: properly refcount vport-vxlan module
2015-12-02 11:50:59 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-10-24 06:54:12 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-12-03 21:09:12 -05:00
openvswitch: Use dev_queue_xmit for vport send.
2015-10-22 06:46:16 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-10-24 06:54:12 -07:00
openvswitch: properly refcount vport-vxlan module
2015-12-02 11:50:59 -05:00
openvswitch: update kernel doc for struct vport
2016-01-10 23:49:21 -05:00
b064d0d88a