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 `batadv_bla_purge_claims()` function. This issue arises from a timing conflict when a claim is being released simultaneously, causing a critical pointer to become invalid. Successful exploitation of this flaw can lead to a system crash, resulting in a denial of service (DoS).

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-46233 https://nvd.nist.gov/vuln/detail/CVE-2026-46233 https://lore.kernel.org/linux-cve-announce/2026052840-CVE-2026-46233-1e33@gregkh/T