Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.13, < 5.10.259 |
References
- https://git.kernel.org/stable/c/1f467d9a095211d3f77e8ff1bee90e73ffe01c64Patch
- https://git.kernel.org/stable/c/99f17d1cdb371cbd037975239b321f346d38f6d2Patch
- https://git.kernel.org/stable/c/9a02c8fc963ddeecb5d8788be0740c1869fc54b7Patch
- https://git.kernel.org/stable/c/ab26e346322648f5c39de017d9723c9256284fcePatch
- https://git.kernel.org/stable/c/b93ca6012712ecab2b551e120d7c95038d6a89e5Patch
- https://git.kernel.org/stable/c/cfb30645280a2131e46cbd1b9a38cfd3ff893f12Patch
- https://git.kernel.org/stable/c/ea4f757641430bcc8322772e161453c4db5ecb64Patch
- https://git.kernel.org/stable/c/fa1bd704940b5bcbc32c0b28db9167405c8ee5e0Patch
FAQ
What is CVE-2026-64090?
CVE-2026-64090 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 inconsis...
How severe is CVE-2026-64090?
CVE-2026-64090 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-64090?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.