Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: batman-adv: Rejects oversized global TT response buffers. The function batadvttpreparetvlvglobaldata calculates the allocation length for a global TT response using 16-bit temporary variables. When a remote originator advertises ...

SUSE CVE-2026-64088

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: fix negative ttbufflen batadvorignode::ttbufflen was declared as s16, but the field is never intended to hold a negative value. When a value greater than 32767 is assigned, it wraps to a negative signed integer. I...

AZL-83870 CVE-2026-31659 affecting package kernel for versions less than 6.6.137.1-1

In the Linux kernel, the following vulnerability has been resolved: batman-adv: reject oversized global TT response buffers batadvttpreparetvlvglobaldata builds the allocation length for a global TT response in 16-bit temporaries. When a remote originator advertises a large enough global TT, the ...

CVE-2026-31659

The CVE-2026-31659 issue affects the batman-adv component in the Linux kernel. batadv_tt_prepare_tvlv_global_data() computes a 16‑bit allocation length for a global TT response; if a remote originator advertises a large TT, the TT payload length plus VLAN offset can exceed 65,535 and wrap before ...