CVE-2026-74475

CVE CVE-2026-74475EUVD EUVD-2026-59668Published 2026-08-15T12:27:10.000ZLast changed 2026-08-19T16:37:28.000ZCVSS 10.0

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: vxlan: use neigh_ha_snapshot() in route_shortcircuit() The neighbour hardware address n->ha can be updated asynchronously by the neighbour subsystem, protected by n->ha_lock seqlock. Reading n->ha without holding the seqlock loop can lead to torn reads or reading a partially updated MAC address. Use neigh_ha_snapshot() in route_shortcircuit() to safely copy n->ha under read_seqbegin()/read_seqretry() lock protection before using it. Note that arp_reduce() and neigh_reduce() seem to have the same issue left for future patches.

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 3.8; patch: 6.12.103; e4f67addf158f98f8197e08974966b18480dc751 <ec341bb76d77b4c2948764375ee6bfeef4bb41c3; e4f67addf158f98f8197e08974966b18480dc751 <d08e8ac13f2e228cc7fc3c70b5ebe71557b624a0; e4f67addf158f98f8197e08974966b18480dc751 <d0993fc053f29e15cc7c9fe2029df3882a2ab5ab; e4f67addf158f98f8197e08974966b18480dc751 <87210054bad82bbae6f483a742dc45722fb47a6b; e4f67addf158f98f8197e08974966b18480dc751 <8eca411347e1d38964f9ed2c8d3b6ab0e7e4473d; e4f67addf158f98f8197e08974966b18480dc751 <ff89415d34c3ab9f5312316423122e664ed3524f; patch: 6.1.183; e4f67addf158f98f8197e08974966b18480dc751 <05f2987f73daa05333fd713d05546142f9f7c5f0; patch: 6.6.151; patch: 5.15.216; patch: 5.10.265; patch: 0; e4f67addf158f98f8197e08974966b18480dc751 <32a9590a8d30426e3db63e6b20893e47e02576c0; patch: 6.18.44; patch: 7.1.8; patch: 7.2

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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