Medium 5.5Published Jun 24, 2026

CVE-2026-52926batman-adv: clear current gateway during teardown

Updated under an hour ago (Oct 28, 2026, 12:10 PM ET)

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Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Jun 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 2265c141086474bbae55a5bb3afa1ebb78ccaa7c before a3f3f1ec8aad84c5dd386c430b9c61cddd85b18f; from 2265c141086474bbae55a5bb3afa1ebb78ccaa7c before e2ec4c712d19141ca7bf7fbbb1d842f73abaa186; 2265c141086474bbae55a5bb3afa1ebb78ccaa7c builds before 9a1a8ed4facfe843bde6fdfcf7af0e9923eb2e17; 2265c141086474bbae55a5bb3afa1ebb78ccaa7c builds before 6de089b545db013433cf934bb4e4433dec2dd65f; 2265c141086474bbae55a5bb3afa1ebb78ccaa7c builds before 30bda3ef4b0cac777f1a7c314cd08b8ff6437365; from 2265c141086474bbae55a5bb3afa1ebb78ccaa7c before ae7aeb0ce3c0ebbe357ed525779acac197a18086; 2265c141086474bbae55a5bb3afa1ebb78ccaa7c builds before 17e3a441111cd1a530cd6ee69a22f3161d80d810; from 2265c141086474bbae55a5bb3afa1ebb78ccaa7c before a340a51ed801eab7bb454150c226323b865263cc	CNA record
linux linux_kernel linux:linux_kernel	from 3.1 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.142; from 6.7 before 6.12.92; from 6.13 before 6.18.34; from 6.19 before 7.0.11; 7.1; and 3 more ranges	NVD

References

References

https://git.kernel.org/stable/c/a3f3f1ec8aad84c5dd386c430b9c61cddd85b18f	patch
https://git.kernel.org/stable/c/e2ec4c712d19141ca7bf7fbbb1d842f73abaa186	patch
https://git.kernel.org/stable/c/9a1a8ed4facfe843bde6fdfcf7af0e9923eb2e17	patch
https://git.kernel.org/stable/c/6de089b545db013433cf934bb4e4433dec2dd65f	patch
https://git.kernel.org/stable/c/30bda3ef4b0cac777f1a7c314cd08b8ff6437365	patch
https://git.kernel.org/stable/c/ae7aeb0ce3c0ebbe357ed525779acac197a18086	patch
https://git.kernel.org/stable/c/17e3a441111cd1a530cd6ee69a22f3161d80d810	patch
https://git.kernel.org/stable/c/a340a51ed801eab7bb454150c226323b865263cc	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.