In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: move to two-stage removal scheme Like previous patches for… (CVE-2026-64077)
In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: move to two-stage removal scheme Like previous patches for x_tables, follow same pattern in ebtables. We can't reuse xt helpers: ebt_table struct layout is incompatible. table->ops assignment is now done while still holding the ebt mutex to make sure we never expose partially-filled table struct.
AI Analysis
Technical Summary
The Linux kernel vulnerability identified as CVE-2026-64077 concerns the netfilter ebtables subsystem. The issue was addressed by moving to a two-stage removal scheme, preventing exposure of partially-initialized ebt_table structures. This was achieved by performing the table->ops assignment while holding the ebt mutex, ensuring thread safety and structural integrity. The patch follows the pattern of earlier fixes applied to related x_tables components. No further technical details or affected versions are specified.
Potential Impact
The vulnerability could potentially allow inconsistent or unsafe access to the ebt_table structure during removal operations, which might lead to kernel instability or undefined behavior. However, no known exploits in the wild have been reported, and the exact impact is not detailed in the available information.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to address this vulnerability by adopting a two-stage removal scheme for ebtables. Users should apply the official kernel updates that include this patch once available. Patch status is not explicitly confirmed in the provided data; therefore, check the vendor or Linux kernel advisory for current remediation guidance.
In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: move to two-stage removal scheme Like previous patches for… (CVE-2026-64077)
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: move to two-stage removal scheme Like previous patches for x_tables, follow same pattern in ebtables. We can't reuse xt helpers: ebt_table struct layout is incompatible. table->ops assignment is now done while still holding the ebt mutex to make sure we never expose partially-filled table struct.
CVSS v3.1
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel vulnerability identified as CVE-2026-64077 concerns the netfilter ebtables subsystem. The issue was addressed by moving to a two-stage removal scheme, preventing exposure of partially-initialized ebt_table structures. This was achieved by performing the table->ops assignment while holding the ebt mutex, ensuring thread safety and structural integrity. The patch follows the pattern of earlier fixes applied to related x_tables components. No further technical details or affected versions are specified.
Potential Impact
The vulnerability could potentially allow inconsistent or unsafe access to the ebt_table structure during removal operations, which might lead to kernel instability or undefined behavior. However, no known exploits in the wild have been reported, and the exact impact is not detailed in the available information.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to address this vulnerability by adopting a two-stage removal scheme for ebtables. Users should apply the official kernel updates that include this patch once available. Patch status is not explicitly confirmed in the provided data; therefore, check the vendor or Linux kernel advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-2pwc-rv94-9pp5
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64077"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5d27a92a4a8d598912c57e
Added to database: 07/19/2026, 19:38:17 UTC
Last enriched: 07/19/2026, 19:53:38 UTC
Last updated: 07/20/2026, 19:41:22 UTC
Views: 15
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