CVE-2026-64096
CVE CVE-2026-64096EUVD EUVD-2026-45781Published 2026-07-19T15:40:02.000ZLast changed 2026-08-05T12:39:10.000ZCVSS 8.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: batman-adv: mcast: fix use-after-free in orig_node RCU release batadv_mcast_purge_orig() removes entries from RCU-protected hlists but does not wait for an RCU grace period before returning. Concurrent RCU readers may still accesses references to those entries at the point of removal. RCU-protected readers trying to operate on entries like orig->mcast_want_all_ipv6_node will then access already freed memory. Fix this by moving batadv_mcast_purge_orig() to batadv_orig_node_release(), just before the call_rcu() invocation. This ensures RCU readers that were active at purge time have drained before the orig_node memory is reclaimed.
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 3.15; patch: 6.6.142; patch: 5.10.258; patch: 6.18.34; patch: 6.1.175; ab49886e3da73b6b35ece21006e191910427bb30 <aef897c9d2dd0d9339167fb82b62beff68d076cb; ab49886e3da73b6b35ece21006e191910427bb30 <ced48f55bac73f0822eae90509e51b42b4f646c8; ab49886e3da73b6b35ece21006e191910427bb30 <78a63fb2f7d5630d1c1f2859a20d4e4226863b41; patch: 7.1; patch: 5.15.209; patch: 6.12.92; ab49886e3da73b6b35ece21006e191910427bb30 <20c2d6a20ca936f5aaa6dd40f73f262ac45c87cc; ab49886e3da73b6b35ece21006e191910427bb30 <ff3a4487ead475e27b43280b8ee3d8464fe280e1; ab49886e3da73b6b35ece21006e191910427bb30 <edfb1e094104a50f931553dc82ac59246569fd32; ab49886e3da73b6b35ece21006e191910427bb30 <8a3707653ab658e082ccd992e92594e01b09a3fc; ab49886e3da73b6b35ece21006e191910427bb30 <70bcb678561f0fb58f33270fc73f12f3be72b878; patch: 7.0.11; patch: 0
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
Does this concern one of your customers?
This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.
Try it for 28 daysPatchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.