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Commit a681574c authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

ipv4: disable BH in set_ping_group_range() 



In commit 4ee3bd4a ("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: b8f1a556 ("udp: Add function to make source port for UDP tunnels")
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Reported-by: default avatarEric Salo <salo@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 286c72de

net/ipv4/sysctl_net_ipv4.c

+2 −2
Original line number Diff line number Diff line
@@ -109,10 +109,10 @@ 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. */