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ipv4: disable BH in set_ping_group_range()

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[ Upstream commit a681574c99be23e4d20b769bf0e543239c364af5 ]

In commit 4ee3bd4a8c ("ipv4: disable BH when changing ip local port
range") Cong added BH protection in set_local_port_range() but missed
that same fix was needed in set_ping_group_range()

Fixes: b8f1a55639 ("udp: Add function to make source port for UDP tunnels")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Eric Salo <salo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Eric Dumazet 2016-10-20 10:26:48 -07:00 • committed by Greg Kroah-Hartman
parent 3cb00b90e8
commit 827ada2d67
1 changed files with 2 additions and 2 deletions
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4
net/ipv4/sysctl_net_ipv4.c
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@ -110,10 +110,10 @@ static void set_ping_group_range(struct ctl_table *table, kgid_t low, kgid_t hig
kgid_t *data = table->data;
struct net *net =
container_of(table->data, struct net, ipv4.ping_group_range.range);
write_seqlock(&net->ipv4.ip_local_ports.lock);
write_seqlock_bh(&net->ipv4.ip_local_ports.lock);
data[0] = low;
data[1] = high;
write_sequnlock(&net->ipv4.ip_local_ports.lock);
write_sequnlock_bh(&net->ipv4.ip_local_ports.lock);
}
/* Validate changes from /proc interface. */