CVE-2026-64094batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface
- 5.5MediumCVSS base score
- 0.15%Exploitation in 30 daysEPSS · top 95% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.15% · top 95% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 23721387c409087fd3b97e274f34d3ddc0970b74 – < 4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70
- affected 23721387c409087fd3b97e274f34d3ddc0970b74 – < 53cb3511f6eda37d3bd923545fdba6013b6d7bb7
- affected 23721387c409087fd3b97e274f34d3ddc0970b74 – < efb62458c94db1fe3a287e7e89c31b0cfb03f938
- affected 23721387c409087fd3b97e274f34d3ddc0970b74 – < 2a8c9e86529156c62d9187b9ed9454c31665ad33
- affected 23721387c409087fd3b97e274f34d3ddc0970b74 – < 0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45
- affected 23721387c409087fd3b97e274f34d3ddc0970b74 – < 6921a7683ae9ad0208d829e71f725a9e25ccff49
- affected 23721387c409087fd3b97e274f34d3ddc0970b74 – < 555b8d3f5c313d81d46274fd0976352dafc80124
- affected 23721387c409087fd3b97e274f34d3ddc0970b74 – < f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24
- affected 3.5
- unaffected < 3.5
- unaffected 5.10.259 – ≤ 5.10.*
- unaffected 5.15.210 – ≤ 5.15.*
- unaffected 6.1.176 – ≤ 6.1.*
- unaffected 6.6.143 – ≤ 6.6.*
- unaffected 6.12.93 – ≤ 6.12.*
- unaffected 6.18.34 – ≤ 6.18.*
- unaffected 7.0.11 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References8
- https://git.kernel.org/stable/c/4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70 (opens in a new tab)
- https://git.kernel.org/stable/c/53cb3511f6eda37d3bd923545fdba6013b6d7bb7 (opens in a new tab)
- https://git.kernel.org/stable/c/efb62458c94db1fe3a287e7e89c31b0cfb03f938 (opens in a new tab)
- https://git.kernel.org/stable/c/2a8c9e86529156c62d9187b9ed9454c31665ad33 (opens in a new tab)
- https://git.kernel.org/stable/c/0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45 (opens in a new tab)
- https://git.kernel.org/stable/c/6921a7683ae9ad0208d829e71f725a9e25ccff49 (opens in a new tab)
- https://git.kernel.org/stable/c/555b8d3f5c313d81d46274fd0976352dafc80124 (opens in a new tab)
- https://git.kernel.org/stable/c/f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-45779 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-64094)Record last updated .