From: Eric Dumazet Date: Thu, 20 Oct 2016 17:26:48 +0000 (-0700) Subject: ipv4: disable BH in set_ping_group_range() X-Git-Tag: submit/tizen/20161219.112149~6^2~124 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=827ada2d671bb4aa4be9fe43e872d941c5a29619;p=sdk%2Femulator%2Femulator-kernel.git ipv4: disable BH in set_ping_group_range() [ Upstream commit a681574c99be23e4d20b769bf0e543239c364af5 ] In commit 4ee3bd4a8c746 ("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: b8f1a55639e6 ("udp: Add function to make source port for UDP tunnels") Signed-off-by: Eric Dumazet Reported-by: Eric Salo Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index a0bd7a55193e..9d82611c4600 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -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. */