Date: Thu, 19 Feb 2026 14:21:16 +0000 From: Michael Tuexen <tuexen@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Cc: Timo =?utf-8?Q?V=C3=B6lker?= <timo.voelker@fh-muenster.de> Subject: git: ada4dc77577f - main - icmp6: clear csum_flags on mbuf reuse Message-ID: <69971c5c.1d8c4.55273d28@gitrepo.freebsd.org>
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The branch main has been updated by tuexen: URL: https://cgit.FreeBSD.org/src/commit/?id=ada4dc77577f7162353e8c2916ba5c258b6210f0 commit ada4dc77577f7162353e8c2916ba5c258b6210f0 Author: Timo Völker <timo.voelker@fh-muenster.de> AuthorDate: 2026-02-19 14:15:10 +0000 Commit: Michael Tuexen <tuexen@FreeBSD.org> CommitDate: 2026-02-19 14:21:01 +0000 icmp6: clear csum_flags on mbuf reuse When icmp6 sends an ICMPv6 message, it reuses the mbuf of the packet that triggered the ICMPv6 message and prepends an IPv6 and ICMPv6 header. For a locally generated packet with checksum offloading, the mbuf still has csum_flags set indicating that a SCTP/TCP/UDP checksum has to be computed and inserted. Since this not the case anymore, csum_flags need to be cleared. PR: 293227 Reviewed by: kp, zlei, tuexen MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D55367 --- sys/netinet6/icmp6.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sys/netinet6/icmp6.c b/sys/netinet6/icmp6.c index 5b5f7b83623e..7fe18f4a4d2b 100644 --- a/sys/netinet6/icmp6.c +++ b/sys/netinet6/icmp6.c @@ -2133,6 +2133,7 @@ icmp6_reflect(struct mbuf *m, size_t off) m->m_flags &= ~(M_BCAST|M_MCAST); m->m_pkthdr.rcvif = NULL; + m->m_pkthdr.csum_flags = 0; ip6_output(m, NULL, NULL, 0, NULL, &outif, NULL); if (outif) icmp6_ifoutstat_inc(outif, type, code);home | help
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