In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: avoid empty VLAN responses The commit 16116dac2339 ("batman-adv:… (CVE-2026-64090)
A vulnerability in the Linux kernel's batman-adv module related to the translation table (TT) handling has been resolved. The issue involved the potential sending of empty VLAN responses from the global TT state, which could cause inconsistent states. The fix prevents sending empty VLANs in replies from the global TT state to avoid these inconsistencies.
AI Analysis
Technical Summary
The vulnerability in the Linux kernel's batman-adv module concerned the handling of TT responses. While a prior fix addressed local direct TT response inconsistencies by adding checks, the global TT state responses could still send empty VLANs, leading to inconsistent TT states. The recent commit prevents sending empty VLAN responses from the global TT state, thereby resolving the inconsistency issue.
Potential Impact
The vulnerability could lead to inconsistent TT states in the batman-adv module due to empty VLAN responses being sent from the global TT state. The specific impact or exploitation consequences are not detailed in the available information.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to prevent sending empty VLAN responses from the global TT state in the batman-adv module. Users should update their Linux kernel to a version that includes this commit (16116dac2339) to remediate the vulnerability. Patch status is not explicitly confirmed in the input data; therefore, users should consult the Linux kernel vendor advisory for the exact fixed versions and apply updates accordingly.
In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: avoid empty VLAN responses The commit 16116dac2339 ("batman-adv:… (CVE-2026-64090)
Description
A vulnerability in the Linux kernel's batman-adv module related to the translation table (TT) handling has been resolved. The issue involved the potential sending of empty VLAN responses from the global TT state, which could cause inconsistent states. The fix prevents sending empty VLANs in replies from the global TT state to avoid these inconsistencies.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in the Linux kernel's batman-adv module concerned the handling of TT responses. While a prior fix addressed local direct TT response inconsistencies by adding checks, the global TT state responses could still send empty VLANs, leading to inconsistent TT states. The recent commit prevents sending empty VLAN responses from the global TT state, thereby resolving the inconsistency issue.
Potential Impact
The vulnerability could lead to inconsistent TT states in the batman-adv module due to empty VLAN responses being sent from the global TT state. The specific impact or exploitation consequences are not detailed in the available information.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to prevent sending empty VLAN responses from the global TT state in the batman-adv module. Users should update their Linux kernel to a version that includes this commit (16116dac2339) to remediate the vulnerability. Patch status is not explicitly confirmed in the input data; therefore, users should consult the Linux kernel vendor advisory for the exact fixed versions and apply updates accordingly.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-j7vj-7vr5-66w9
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64090"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5d27a82a4a8d598912b571
Added to database: 07/19/2026, 19:38:16 UTC
Last enriched: 07/19/2026, 19:47:57 UTC
Last updated: 07/20/2026, 17:26:47 UTC
Views: 11
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