CVE-2026-64094

Source
https://cve.org/CVERecord?id=CVE-2026-64094
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64094.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-64094
Downstream
Published
2026-07-19T15:40:01.772Z
Modified
2026-07-21T03:47:53.924841996Z
Summary
batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface
Details

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.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64094.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
23721387c409087fd3b97e274f34d3ddc0970b74
Fixed
4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70
Fixed
53cb3511f6eda37d3bd923545fdba6013b6d7bb7
Fixed
efb62458c94db1fe3a287e7e89c31b0cfb03f938
Fixed
2a8c9e86529156c62d9187b9ed9454c31665ad33
Fixed
0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45
Fixed
6921a7683ae9ad0208d829e71f725a9e25ccff49
Fixed
555b8d3f5c313d81d46274fd0976352dafc80124
Fixed
f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64094.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.5.0
Fixed
5.10.259
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.210
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.176
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.143
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.93
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.34
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.0.11

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64094.json"