Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface Without rtnl_lock held, a hardif might be retrieved as primary interface of a meshif, but then (while operating on this interface) getting decoupled from the mesh interface. In this case, the meshif still exists but the pointer from the primary hardif to the meshif is set to NULL. The mesh_iface must be checked first to be non-NULL before continuing to send an ARP request using meshif.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.5, < 5.10.259 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45Patch
- https://git.kernel.org/stable/c/2a8c9e86529156c62d9187b9ed9454c31665ad33Patch
- https://git.kernel.org/stable/c/4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70Patch
- https://git.kernel.org/stable/c/53cb3511f6eda37d3bd923545fdba6013b6d7bb7Patch
- https://git.kernel.org/stable/c/555b8d3f5c313d81d46274fd0976352dafc80124Patch
- https://git.kernel.org/stable/c/6921a7683ae9ad0208d829e71f725a9e25ccff49Patch
- https://git.kernel.org/stable/c/efb62458c94db1fe3a287e7e89c31b0cfb03f938Patch
- https://git.kernel.org/stable/c/f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24Patch
FAQ
What is CVE-2026-64094?
CVE-2026-64094 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface Without rtnl_lock held, a hardif might be retrieved as prima...
How severe is CVE-2026-64094?
CVE-2026-64094 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-2026-64094?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.