CVE-2026-80875
CVE CVE-2026-80875EUVD EUVD-2026-71505Published 2026-09-04T16:48:48.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: ipvs: use parsed transport offset in TCP state lookup TCP state handling reparses the skb to find the TCP header. For IPv6 it uses sizeof(struct ipv6hdr), while the surrounding IPVS code already parsed the packet with ip_vs_fill_iph_skb() and has the real transport-header offset in iph.len. This makes TCP state handling look at the wrong bytes when an IPv6 packet carries extension headers. Use the parsed transport offset passed down from ip_vs_set_state() when reading the TCP header. For IPv4 and for IPv6 packets without extension headers, the passed offset matches the previous value.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 0bbdd42b7efa66685b6d74701bcde3a596a3a59d <d45f73c274435703e8d7bc9d8b742a5d9111ab6e; 0bbdd42b7efa66685b6d74701bcde3a596a3a59d <f6f550f26562d191c30b2818e7925dcb1c7f166c; 0bbdd42b7efa66685b6d74701bcde3a596a3a59d <816efb7fc0aeae986e63ac73b428dd97a4ef69f5; 0bbdd42b7efa66685b6d74701bcde3a596a3a59d <5848e914b85e360a2dd9d19c00a72e2ea9617dd0; patch: 5.10.261; patch: 7.2; patch: 5.15.212; patch: 7.1.5; 0bbdd42b7efa66685b6d74701bcde3a596a3a59d <2d06e0897ce18228d199887f0823b431d841dd03; 0bbdd42b7efa66685b6d74701bcde3a596a3a59d <c2ee845e292c278fac75bf28d96bc892607fd5c4; 0bbdd42b7efa66685b6d74701bcde3a596a3a59d <d73f4249776dd970ad65a69cfc51613dd8a034bb; patch: 6.12.97; patch: 6.6.145; patch: 6.18.40; patch: 0; 2.6.28; 0bbdd42b7efa66685b6d74701bcde3a596a3a59d <2500fa3958b1ba51c2b065e39db1b04dfa7e23a2; patch: 6.1.178
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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