diff options
| author | simon <simon@FreeBSD.org> | 2008-09-03 19:09:47 +0000 |
|---|---|---|
| committer | simon <simon@FreeBSD.org> | 2008-09-03 19:09:47 +0000 |
| commit | 6bb93e188cd52e460f98be21d1c7a98536eb1276 (patch) | |
| tree | bdf13f39a4170d136aa0d2ee104a49cf4da88171 /sys/netinet6/icmp6.c | |
| parent | 0791911684a7ddb284dc09213bf5df5714f194fa (diff) | |
| download | FreeBSD-src-6bb93e188cd52e460f98be21d1c7a98536eb1276.zip FreeBSD-src-6bb93e188cd52e460f98be21d1c7a98536eb1276.tar.gz | |
- Fix amd64 local privilege escalation. [08:07]
- Fix nmount(2) local privilege escalation. [08:08]
- Fix IPv6 remote kernel panics. [08:09]
Fix for [08:07] is merge of r181823.
Submitted by: kib [08:07], csjp [08:08], bz [08:09]
Reviewed by: peter [08:07], jhb [08:07]
Reviewed by: jinmei [08:09], rwatson [08:09]
Approved by: re (SA blanket)
Approved by: so (simon)
Security: FreeBSD-SA-08:07.amd64
Security: FreeBSD-SA-08:08.nmount
Security: FreeBSD-SA-08:09.icmp6
Diffstat (limited to 'sys/netinet6/icmp6.c')
| -rw-r--r-- | sys/netinet6/icmp6.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/netinet6/icmp6.c b/sys/netinet6/icmp6.c index 3391d57..c4651ef 100644 --- a/sys/netinet6/icmp6.c +++ b/sys/netinet6/icmp6.c @@ -1122,6 +1122,15 @@ icmp6_mtudisc_update(struct ip6ctlparam *ip6cp, int validated) if (!validated) return; + /* + * In case the suggested mtu is less than IPV6_MMTU, we + * only need to remember that it was for above mentioned + * "alwaysfrag" case. + * Try to be as close to the spec as possible. + */ + if (mtu < IPV6_MMTU) + mtu = IPV6_MMTU - 8; + bzero(&inc, sizeof(inc)); inc.inc_flags = 1; /* IPv6 */ inc.inc6_faddr = *dst; |
