From: Eiichi Tsukata Date: Fri, 28 Jun 2019 02:37:14 +0000 (+0900) Subject: net/ipv6: Fix misuse of proc_dointvec "flowlabel_reflect" X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=00dc3307c0f7a8bdc79409e0a00d86efea93e0ea;p=openwrt%2Fstaging%2Fblogic.git net/ipv6: Fix misuse of proc_dointvec "flowlabel_reflect" /proc/sys/net/ipv6/flowlabel_reflect assumes written value to be in the range of 0 to 3. Use proc_dointvec_minmax instead of proc_dointvec. Fixes: 323a53c41292 ("ipv6: tcp: enable flowlabel reflection in some RST packets") Signed-off-by: Eiichi Tsukata Signed-off-by: David S. Miller --- diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c index 8b3fe81783ed..dc4c91e0bfb8 100644 --- a/net/ipv6/sysctl_net_ipv6.c +++ b/net/ipv6/sysctl_net_ipv6.c @@ -114,7 +114,7 @@ static struct ctl_table ipv6_table_template[] = { .data = &init_net.ipv6.sysctl.flowlabel_reflect, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_dointvec_minmax, .extra1 = &zero, .extra2 = &flowlabel_reflect_max, },