CVE-2026-52913

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux0da0035942d47766c32843143fb5dba7a29cb48c < d7391a2b854a62235539c68e9cbf6fc7910a8e9aaffected
LinuxLinux0da0035942d47766c32843143fb5dba7a29cb48c < 70c9f6ab0d8f785087fb74fb85464a9a5288bfdbaffected
LinuxLinux0da0035942d47766c32843143fb5dba7a29cb48c < 040fe8eb34624002071dd21de9824dfe668ce65daffected
LinuxLinux0da0035942d47766c32843143fb5dba7a29cb48c < 31dcb9711abd1dcd2080d9fac05c79dd9997d6bfaffected
LinuxLinux0da0035942d47766c32843143fb5dba7a29cb48c < aad70db50ea3d7dfe30e402b889ff075a293b287affected
LinuxLinux0da0035942d47766c32843143fb5dba7a29cb48c < 1be1e99cbd5b74a69d3f92200ca87cf1bce852dbaffected
LinuxLinux0da0035942d47766c32843143fb5dba7a29cb48c < 4ff461af943efb5e74d09942d5ffee7644d1e1feaffected
LinuxLinux0da0035942d47766c32843143fb5dba7a29cb48c < f8ce8b8331a1bc44ad4905886a482214d428b253affected
LinuxLinux4.6affected
LinuxLinux0 < 4.6unaffected
LinuxLinux5.10.259 <= 5.10.*unaffected
LinuxLinux5.15.210 <= 5.15.*unaffected
LinuxLinux6.1.176 <= 6.1.*unaffected
LinuxLinux6.6.143 <= 6.6.*unaffected
LinuxLinux6.12.93 <= 6.12.*unaffected
LinuxLinux6.18.34 <= 6.18.*unaffected
LinuxLinux7.0.11 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References