diff options
Diffstat (limited to 'sys/netinet6/frag6.c')
| -rw-r--r-- | sys/netinet6/frag6.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/netinet6/frag6.c b/sys/netinet6/frag6.c index 5acdc1b20981..9837c6662888 100644 --- a/sys/netinet6/frag6.c +++ b/sys/netinet6/frag6.c @@ -861,6 +861,11 @@ postinsert: /* Adjust offset to point where the original next header starts. */ offset = ip6af->ip6af_offset - sizeof(struct ip6_frag); free(ip6af, M_FRAG6); + if ((u_int)plen + (u_int)offset - sizeof(struct ip6_hdr) > + IPV6_MAXPACKET) { + frag6_freef(q6, bucket); + goto dropfrag; + } ip6 = mtod(m, struct ip6_hdr *); ip6->ip6_plen = htons((u_short)plen + offset - sizeof(struct ip6_hdr)); if (q6->ip6q_ecn == IPTOS_ECN_CE) |