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Subject[PATCH] net: Add missing extra2 parameter for ip_default_ttl sysctl
Commit 76e6ebfb40a2455c18234dcb0f9df37533215461 acceses the extra2 parameter of
the ip_default_ttl ctl_table, but it is never set to a meaningful value. When
e84f84f276473dcc673f360e8ff3203148bdf0e2 is applied, we'll oops in
rt_cache_invalidate(). Set extra2 to init_net, to avoid that.

Reported-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Tested-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: Denis V. Lunev <den@openvz.org>
---
net/ipv4/sysctl_net_ipv4.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 770d827..e0689fd 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -232,6 +232,7 @@ static struct ctl_table ipv4_table[] = {
.mode = 0644,
.proc_handler = &ipv4_doint_and_flush,
.strategy = &ipv4_doint_and_flush_strategy,
+ .extra2 = &init_net,
},
{
.ctl_name = NET_IPV4_NO_PMTU_DISC,

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