diff options
| author | Timo Völker <timo.voelker@fh-muenster.de> | 2026-02-19 14:15:10 +0000 |
|---|---|---|
| committer | Michael Tuexen <tuexen@FreeBSD.org> | 2026-02-19 17:42:05 +0000 |
| commit | 0a87ae18331d5c52dde1e5a4f13ee577e8e5e188 (patch) | |
| tree | 17b83287b8e6681cd0b3fea776098d13732b405f | |
| parent | 2c9398c5a976a4a5bfd32aeea39d589f809033e4 (diff) | |
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
(cherry picked from commit ada4dc77577f7162353e8c2916ba5c258b6210f0)
| -rw-r--r-- | sys/netinet6/icmp6.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/netinet6/icmp6.c b/sys/netinet6/icmp6.c index 8d6e04c926c7..3fe0bec536e8 100644 --- a/sys/netinet6/icmp6.c +++ b/sys/netinet6/icmp6.c @@ -2163,6 +2163,7 @@ 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); |