git: c53a68283300 - stable/14 - tcp: fix local blackholing

The branch stable/14 has been updated by tuexen:

URL: https://cgit.FreeBSD.org/src/commit/?id=c53a6828330043d9ca2e2b56315cee4accd11f30

commit c53a6828330043d9ca2e2b56315cee4accd11f30
Author:     Michael Tuexen <tuexen@FreeBSD.org>
AuthorDate: 2025-06-13 20:53:42 +0000
Commit:     Michael Tuexen <tuexen@FreeBSD.org>
CommitDate: 2025-09-04 20:03:01 +0000

    tcp: fix local blackholing
    
    The sysctl-variable net.inet.tcp.blackhole_local should affect
    TCP segments from an IPv6 address of the local host, not of a host
    on the local area network.
    Thanks to cc@ for pointing me to the issue.
    
    Reviewed by:            cc
    Sponsored by:           Netflix, Inc.
    Differential Revision:  https://reviews.freebsd.org/D50828
    
    (cherry picked from commit de8fb1b3835758998a53d772deeebcdb71bbb823)
---
 sys/netinet/tcp_input.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c
index b4c77c303df7..fb0c110d460d 100644
--- a/sys/netinet/tcp_input.c
+++ b/sys/netinet/tcp_input.c
@@ -1411,7 +1411,7 @@ dropwithreset:
 	    ((V_blackhole == 1 && (thflags & TH_SYN)) || V_blackhole > 1))) &&
 	    (V_blackhole_local || (
 #ifdef INET6
-	    isipv6 ? !in6_localaddr(&ip6->ip6_src) :
+	    isipv6 ? !in6_localip(&ip6->ip6_src) :
 #endif
 #ifdef INET
 	    !in_localip(ip->ip_src)