CVE-2026-52913
batman-adv: v: stop OGMv2 on disabled interface
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Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: v: stop OGMv2 on disabled interface When a batadv_hard_iface is disabled, its mesh_iface pointer is set to NULL. However, batadv_v_ogm_send_meshif() may still dispatch OGMs via batadv_v_ogm_queue_on_if() for interfaces that have since lost their mesh_iface association. This results in a NULL pointer dereference when batadv_v_ogm_queue_on_if() unconditionally calls netdev_priv() on the now NULL hard_iface->mesh_iface to retrieve the batadv_priv. It is necessary to ensure that the batadv_v_ogm_queue_on_if() checks that it is using the same mesh_iface for which batadv_v_ogm_send_meshif() was called.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/d7391a2b854a62235539c68e9cbf6fc7910a8e9a
- https://git.kernel.org/stable/c/70c9f6ab0d8f785087fb74fb85464a9a5288bfdb
- https://git.kernel.org/stable/c/040fe8eb34624002071dd21de9824dfe668ce65d
- https://git.kernel.org/stable/c/31dcb9711abd1dcd2080d9fac05c79dd9997d6bf
- https://git.kernel.org/stable/c/aad70db50ea3d7dfe30e402b889ff075a293b287
References (8)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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