Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla – only unloads claims that have not yet been released. When the batadvblapurgeclaims function processes the list of claims, it only uses an rcureadlock to traverse the hash list. Due to potential parallel operatio...

Linux Kernel Heap Buffer Overflow DoS

The vulnerability of the function batadvblapurgeclaims in the net/batman-adv/bridgeloopavoidance.c module, which is part of the network functions of the Linux operating system’s kernel, relates to the assignment of pointers. Exploiting this vulnerability could allow a remote attacker to cause...

CVE-2026-46233

A flaw was found in the Linux kernel's batman-adv module. This vulnerability allows a local attacker to trigger a NULL-pointer dereference within the batadvblapurgeclaims function. This issue arises from a timing conflict when a claim is being released simultaneously, causing a critical pointer t...

CVE-2026-46233: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: only purge non-released claims When batadvblapurgeclaims goes through the list of claims, it is only traversing the hash list with an rcureadlock. Due to a potential parallel batadvclaimput, it can happen that it...