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230c6402b1
linux-next/include/net/tc_act
History
Davide Caratti fe384e2fa3 net/sched: don't dereference a->goto_chain to read the chain index 
callers of tcf_gact_goto_chain_index() can potentially read an old value
of the chain index, or even dereference a NULL 'goto_chain' pointer,
because 'goto_chain' and 'tcfa_action' are read in the traffic path
without caring of concurrent write in the control path. The most recent
value of chain index can be read also from a->tcfa_action (it's encoded
there together with TC_ACT_GOTO_CHAIN bits), so we don't really need to
dereference 'goto_chain': just read the chain id from the control action.

Fixes: e457d86ada ("net: sched: add couple of goto_chain helpers")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-21 13:26:42 -07:00
..
tc_bpf.h net_sched: get rid of struct tcf_common 2016-07-25 21:49:20 -07:00
tc_connmark.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tc_csum.h net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
tc_defact.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tc_gact.h net/sched: don't dereference a->goto_chain to read the chain index 2019-03-21 13:26:42 -07:00
tc_ife.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
tc_ipt.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tc_mirred.h net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
tc_nat.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tc_pedit.h net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
tc_sample.h net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
tc_skbedit.h net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
tc_skbmod.h net_sched: Introduce skbmod action 2016-09-15 19:33:47 -04:00
tc_tunnel_key.h net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
tc_vlan.h net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00