CVE-2026-98089

CVE CVE-2026-98089EUVD EUVD-2026-86919Published 2026-09-25T10:24:22.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: bonding: alb: fix uninitialized transport header access in alb_determine_nd() alb_determine_nd() uses icmp6_hdr(skb) to inspect ICMPv6 headers. However, in xmit paths (e.g. packets sent via AF_PACKET / raw sockets or forwarded packets), skb->transport_header is not guaranteed to be initialized. While pskb_network_may_pull() ensures the packet data is linear starting from the network header, it does not set or adjust the transport header offset. Dereferencing icmp6_hdr(skb) can therefore access out-of-bounds memory. Fetch the icmp6hdr directly after ipv6hdr following pskb_network_may_pull(), and reload ipv6hdr in case pskb_may_pull() reallocated skb->head. Also remove the unused bond argument from alb_determine_nd().

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 patch: 6.18.53; 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 <3b178894931a268c09126a5b53630f343e10e296; patch: 6.12.111; patch: 0; patch: 7.2.7; 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 <e39cf90bd856443542b97933289749fca07476bf; 5.18; 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 <70f3995830d3f1e79faa14eb0605914f778feca9; patch: 7.3-rc2; 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 <27314f96d29b54e815e7a9b84c3273f1895e68e2

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

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Linux — Linux

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