CVE-2026-64094
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…
Does this matter?
Lower severity and a low EPSS score (0.15%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.15% probability · 5th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.