CVE-2026-52926 Details
Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: clear current gateway during teardown batadv_gw_node_free() removes the gateway list entries during mesh teardown, but it does not clear the currently selected gateway. This leaves stale gateway state behind across cleanup and can break a later mesh recreation. Clear bat_priv->gw.curr_gw before walking the gateway list so the selected gateway reference is dropped as part of teardown.
A vulnerability exists in the Linux kernel's batman-adv module, specifically in the gateway management during mesh network teardown. The issue arises because the function responsible for freeing gateway nodes does not clear the currently selected gateway, leaving behind outdated gateway information. This residual state can disrupt future mesh network operations. The vulnerability affects the Linux kernel stable tree.
Users can apply the latest patches available in the Linux kernel stable tree to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/17e3a441111cd1a530cd6ee69a22f3161d80d810 | kernel.org | Patch |
| https://git.kernel.org/stable/c/30bda3ef4b0cac777f1a7c314cd08b8ff6437365 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6de089b545db013433cf934bb4e4433dec2dd65f | kernel.org | Patch |
| https://git.kernel.org/stable/c/9a1a8ed4facfe843bde6fdfcf7af0e9923eb2e17 | kernel.org | Patch |
| https://git.kernel.org/stable/c/a340a51ed801eab7bb454150c226323b865263cc | kernel.org | Patch |
| https://git.kernel.org/stable/c/a3f3f1ec8aad84c5dd386c430b9c61cddd85b18f | kernel.org | Patch |
| https://git.kernel.org/stable/c/ae7aeb0ce3c0ebbe357ed525779acac197a18086 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e2ec4c712d19141ca7bf7fbbb1d842f73abaa186 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 3.1, < 5.10.258 >= 5.11, < 5.15.209 >= 5.16, < 6.1.175 >= 6.2, < 6.6.142 >= 6.7, < 6.12.92 >= 6.13, < 6.18.34 >= 6.19, < 7.0.11 7.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jun 24, 2026 | New CVE Received | kernel.org |