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authorBorislav Petkov <bp@suse.de>2018-09-27 18:36:24 +0200
committerBorislav Petkov <bp@suse.de>2018-09-27 18:36:24 +0200
commitd913e8966a8f4b259dd6f11f0c334d865cf9d3aa (patch)
tree0b354028600f61001317426da875edc50685d36d /net/ipv4/tcp_ipv4.c
parent6b58859419554fb824e09cfdd73151a195473cbc (diff)
parentc9661c1e80b609cd038db7c908e061f0535804ef (diff)
Merge branch 'tip-x86-hygon' into edac-for-4.20
... to pick up a dependent commit and share it with the tip tree, branch tip:x86/cpu. Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
-rw-r--r--net/ipv4/tcp_ipv4.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 9e041fa5c545..44c09eddbb78 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2517,6 +2517,12 @@ static int __net_init tcp_sk_init(struct net *net)
if (res)
goto fail;
sock_set_flag(sk, SOCK_USE_WRITE_QUEUE);
+
+ /* Please enforce IP_DF and IPID==0 for RST and
+ * ACK sent in SYN-RECV and TIME-WAIT state.
+ */
+ inet_sk(sk)->pmtudisc = IP_PMTUDISC_DO;
+
*per_cpu_ptr(net->ipv4.tcp_sk, cpu) = sk;
}