batman-adv: tt: avoid empty VLAN responses
In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: avoid empty VLAN responses The commit 16116dac2339 ("batman-adv: prevent TT request storms by not sending inconsistent TT TLVLs") added checks to the local (direct) TT response code. But the response can also be done indirectly by another node using the global TT state. To avoid such inconsistency states reported in the original fix, also avoid sending empty VLANs for replies from the global TT state.
02 / AFFECTED SOFTWARE
Affected packages
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: avoid empty VLAN responses The commit 16116dac2339 ("batman-adv: prevent TT request storms by not sending inconsistent TT TLVLs") added checks to the local (direct) TT response code. But the response can also be done indirectly by another node using the global TT state. To avoid such inconsistency states reported in the original fix, also avoid sending empty VLANs for replies from the global TT state.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/1f467d9a095211d3f77e8ff1bee90e73ffe01c64
- https://git.kernel.org/stable/c/99f17d1cdb371cbd037975239b321f346d38f6d2
- https://git.kernel.org/stable/c/9a02c8fc963ddeecb5d8788be0740c1869fc54b7
- https://git.kernel.org/stable/c/ab26e346322648f5c39de017d9723c9256284fce
- https://git.kernel.org/stable/c/b93ca6012712ecab2b551e120d7c95038d6a89e5
- https://git.kernel.org/stable/c/cfb30645280a2131e46cbd1b9a38cfd3ff893f12
- https://git.kernel.org/stable/c/ea4f757641430bcc8322772e161453c4db5ecb64
- https://git.kernel.org/stable/c/fa1bd704940b5bcbc32c0b28db9167405c8ee5e0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64090.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-64090