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

What is CVE-2026-52913?

CVE-2026-52913 is a medium-severity vulnerability in Linux kernel, published on 24 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-476

Which versions are affected by CVE-2026-52913?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-52913?

Apply the vendor's patch.

Is CVE-2026-52913 being exploited?

There is no known exploitation of CVE-2026-52913 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2026-52913, DEBIAN-CVE-2026-52913, GHSA-7c77-5hjp-3754, ROOT-OS-DEBIAN-11-CVE-2026-52913, ROOT-OS-DEBIAN-12-CVE-2026-52913, ROOT-OS-UBUNTU-2204-CVE-2026-52913 and 2 more.