PT-2026-51706 · Linux · Linux

Published 2026-06-24 · Updated 2026-06-24 · CVE-2026-52913

Mitre

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.

Related Identifiers

CVE-2026-52913

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-52913 · Security Note
• https://git.kernel.org/stable/c/aad70db50ea3d7dfe30e402b889ff075a293b287 · Note
• https://git.kernel.org/stable/c/d7391a2b854a62235539c68e9cbf6fc7910a8e9a · Note
• https://git.kernel.org/stable/c/70c9f6ab0d8f785087fb74fb85464a9a5288bfdb · Note
• https://git.kernel.org/stable/c/4ff461af943efb5e74d09942d5ffee7644d1e1fe · Note
• https://git.kernel.org/stable/c/31dcb9711abd1dcd2080d9fac05c79dd9997d6bf · Note
• https://git.kernel.org/stable/c/1be1e99cbd5b74a69d3f92200ca87cf1bce852db · Note
• https://git.kernel.org/stable/c/f8ce8b8331a1bc44ad4905886a482214d428b253 · Note
• https://git.kernel.org/stable/c/040fe8eb34624002071dd21de9824dfe668ce65d · Note