CVE-2026-64094
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.259
- Linux Kernel < 5.15.210
- Linux Kernel < 6.1.176
- Linux Kernel < 6.6.143
- Linux Kernel < 6.12.93
- Linux Kernel < 6.18.34
- Linux Kernel < 7.0.11
- Linux Kernel 7.1
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-64094.md and follow it. Check whether this project is affected by CVE-2026-64094. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45
- https://git.kernel.org/stable/c/2a8c9e86529156c62d9187b9ed9454c31665ad33
- https://git.kernel.org/stable/c/4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70
- https://git.kernel.org/stable/c/53cb3511f6eda37d3bd923545fdba6013b6d7bb7
- https://git.kernel.org/stable/c/555b8d3f5c313d81d46274fd0976352dafc80124
- https://git.kernel.org/stable/c/6921a7683ae9ad0208d829e71f725a9e25ccff49
- https://git.kernel.org/stable/c/efb62458c94db1fe3a287e7e89c31b0cfb03f938
- https://git.kernel.org/stable/c/f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24
References
- https://git.kernel.org/stable/c/0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45
- https://git.kernel.org/stable/c/2a8c9e86529156c62d9187b9ed9454c31665ad33
- https://git.kernel.org/stable/c/4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70
- https://git.kernel.org/stable/c/53cb3511f6eda37d3bd923545fdba6013b6d7bb7
- https://git.kernel.org/stable/c/555b8d3f5c313d81d46274fd0976352dafc80124
- https://git.kernel.org/stable/c/6921a7683ae9ad0208d829e71f725a9e25ccff49
- https://git.kernel.org/stable/c/efb62458c94db1fe3a287e7e89c31b0cfb03f938
- https://git.kernel.org/stable/c/f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24