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[NET]: Fix fib_rules dump race
author
Patrick McHardy
<kaber@trash.net>
Thu, 22 Mar 2007 19:24:38 +0000
(12:24 -0700)
committer
David S. Miller
<davem@davemloft.net>
Thu, 22 Mar 2007 19:24:38 +0000
(12:24 -0700)
fib_rules_dump needs to use list_for_each_entry_rcu to protect against
concurrent changes to the rules list.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/fib_rules.c
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diff --git
a/net/core/fib_rules.c
b/net/core/fib_rules.c
index 215f1bff048feeb8991ebd3a49bc406d15053f77..3aea4e87d3d7c679abf051c4af2e6adbabbcac5b 100644
(file)
--- a/
net/core/fib_rules.c
+++ b/
net/core/fib_rules.c
@@
-374,7
+374,7
@@
int fib_rules_dump(struct sk_buff *skb, struct netlink_callback *cb, int family)
return -EAFNOSUPPORT;
rcu_read_lock();
- list_for_each_entry(rule, ops->rules_list, list) {
+ list_for_each_entry
_rcu
(rule, ops->rules_list, list) {
if (idx < cb->args[0])
goto skip;