UBUNTU-CVE-2026-52926
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.
02 / AFFECTED SOFTWARE
Affected packages
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03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/a340a51ed801eab7bb454150c226323b865263cc
- https://git.kernel.org/stable/c/17e3a441111cd1a530cd6ee69a22f3161d80d810
- https://git.kernel.org/stable/c/30bda3ef4b0cac777f1a7c314cd08b8ff6437365
- https://git.kernel.org/stable/c/6de089b545db013433cf934bb4e4433dec2dd65f
- https://git.kernel.org/stable/c/9a1a8ed4facfe843bde6fdfcf7af0e9923eb2e17
- https://git.kernel.org/stable/c/a340a51ed801eab7bb454150c226323b865263cc
- https://git.kernel.org/stable/c/a3f3f1ec8aad84c5dd386c430b9c61cddd85b18f
- https://git.kernel.org/stable/c/ae7aeb0ce3c0ebbe357ed525779acac197a18086
- https://git.kernel.org/stable/c/e2ec4c712d19141ca7bf7fbbb1d842f73abaa186
- https://ubuntu.com/security/CVE-2026-52926
- https://ubuntu.com/security/notices/USN-8566-1
- https://ubuntu.com/security/notices/USN-8568-1
- https://ubuntu.com/security/notices/USN-8569-1
- https://ubuntu.com/security/notices/USN-8575-1
- https://ubuntu.com/security/notices/USN-8575-2
- https://ubuntu.com/security/notices/USN-8575-3
- https://ubuntu.com/security/notices/USN-8576-1
- https://ubuntu.com/security/notices/USN-8576-2
- https://ubuntu.com/security/notices/USN-8593-1
- https://ubuntu.com/security/notices/USN-8603-1
- https://ubuntu.com/security/notices/USN-8610-1
- https://ubuntu.com/security/notices/USN-8618-1
- https://ubuntu.com/security/notices/USN-8620-1
- https://ubuntu.com/security/notices/USN-8620-2
- https://ubuntu.com/security/notices/USN-8620-3
- https://ubuntu.com/security/notices/USN-8620-4
- https://www.cve.org/CVERecord?id=CVE-2026-52926