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Diffstat (limited to 'net/ipv4/tcp_input.c')
-rw-r--r--net/ipv4/tcp_input.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index a75c48f62e27..ed6606cf5b3e 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3759,11 +3759,12 @@ void tcp_parse_options(const struct sk_buff *skb,
!estab && sysctl_tcp_window_scaling) {
__u8 snd_wscale = *(__u8 *)ptr;
opt_rx->wscale_ok = 1;
- if (snd_wscale > 14) {
- net_info_ratelimited("%s: Illegal window scaling value %d >14 received\n",
+ if (snd_wscale > TCP_MAX_WSCALE) {
+ net_info_ratelimited("%s: Illegal window scaling value %d > %u received\n",
__func__,
- snd_wscale);
- snd_wscale = 14;
+ snd_wscale,
+ TCP_MAX_WSCALE);
+ snd_wscale = TCP_MAX_WSCALE;
}
opt_rx->snd_wscale = snd_wscale;
}