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authorLinus Walleij <linus.walleij@linaro.org>2020-05-27 17:15:52 +0300
committerLinus Walleij <linus.walleij@linaro.org>2020-05-27 17:15:52 +0300
commitce1d966a302229a88bcb4398a5ca76d657b06848 (patch)
tree812671d666fef8b5a955087cff5dc7b3cd555a35 /net/ipv4/ipmr.c
parentf8af9113b1cf71cd21b0a027d38b06c15989c789 (diff)
parent9cb1fd0efd195590b828b9b865421ad345a4a145 (diff)
downloadlinux-ce1d966a302229a88bcb4398a5ca76d657b06848.tar.xz
Merge tag 'v5.7-rc7' into devel
Linux 5.7-rc7
Diffstat (limited to 'net/ipv4/ipmr.c')
-rw-r--r--net/ipv4/ipmr.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 9cf83cc85e4a..b2363b82b48d 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -109,8 +109,10 @@ static void mroute_clean_tables(struct mr_table *mrt, int flags);
static void ipmr_expire_process(struct timer_list *t);
#ifdef CONFIG_IP_MROUTE_MULTIPLE_TABLES
-#define ipmr_for_each_table(mrt, net) \
- list_for_each_entry_rcu(mrt, &net->ipv4.mr_tables, list)
+#define ipmr_for_each_table(mrt, net) \
+ list_for_each_entry_rcu(mrt, &net->ipv4.mr_tables, list, \
+ lockdep_rtnl_is_held() || \
+ list_empty(&net->ipv4.mr_tables))
static struct mr_table *ipmr_mr_table_iter(struct net *net,
struct mr_table *mrt)
@@ -2611,7 +2613,7 @@ static int ipmr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
mrt = ipmr_get_table(sock_net(skb->sk), filter.table_id);
if (!mrt) {
- if (filter.dump_all_families)
+ if (rtnl_msg_family(cb->nlh) != RTNL_FAMILY_IPMR)
return skb->len;
NL_SET_ERR_MSG(cb->extack, "ipv4: MR table does not exist");