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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-64096 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/20c2d6a20ca936f5aaa6dd40f73f262ac45c87cc kernel.org
https://git.kernel.org/stable/c/70bcb678561f0fb58f33270fc73f12f3be72b878 kernel.org
https://git.kernel.org/stable/c/78a63fb2f7d5630d1c1f2859a20d4e4226863b41 kernel.org
https://git.kernel.org/stable/c/8a3707653ab658e082ccd992e92594e01b09a3fc kernel.org
https://git.kernel.org/stable/c/aef897c9d2dd0d9339167fb82b62beff68d076cb kernel.org
https://git.kernel.org/stable/c/ced48f55bac73f0822eae90509e51b42b4f646c8 kernel.org
https://git.kernel.org/stable/c/edfb1e094104a50f931553dc82ac59246569fd32 kernel.org
https://git.kernel.org/stable/c/ff3a4487ead475e27b43280b8ee3d8464fe280e1 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-64096
NVD Published Date:
07/19/2026
NVD Last Modified:
07/20/2026
Source:
kernel.org