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Date: Fri, 28 Jun 2019 11:37:14 +0900 From: Eiichi Tsukata <devel@...ukata.com> To: davem@...emloft.net, edumazet@...gle.com, kuznet@....inr.ac.ru, yoshfuji@...ux-ipv6.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Cc: Eiichi Tsukata <devel@...ukata.com> Subject: [PATCH net-next] 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 <devel@...ukata.com> --- net/ipv6/sysctl_net_ipv6.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c index 6d86fac472e7..831573461e19 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 = &three, }, -- 2.21.0
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