Commit 827ada2d authored by Eric Dumazet's avatar Eric Dumazet Committed by Greg Kroah-Hartman

ipv4: disable BH in set_ping_group_range()

[ Upstream commit a681574c ]

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>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3cb00b90
......@@ -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. */
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment