CVE-2026-52926 (GCVE-0-2026-52926)

Vulnerability from cvelistv5 – Published: 2026-06-24 07:14 – Updated: 2026-06-24 07:14
VLAI
Title
batman-adv: clear current gateway during teardown
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2265c141086474bbae55a5bb3afa1ebb78ccaa7c , < a3f3f1ec8aad84c5dd386c430b9c61cddd85b18f (git)
Affected: 2265c141086474bbae55a5bb3afa1ebb78ccaa7c , < e2ec4c712d19141ca7bf7fbbb1d842f73abaa186 (git)
Affected: 2265c141086474bbae55a5bb3afa1ebb78ccaa7c , < 9a1a8ed4facfe843bde6fdfcf7af0e9923eb2e17 (git)
Affected: 2265c141086474bbae55a5bb3afa1ebb78ccaa7c , < 6de089b545db013433cf934bb4e4433dec2dd65f (git)
Affected: 2265c141086474bbae55a5bb3afa1ebb78ccaa7c , < 30bda3ef4b0cac777f1a7c314cd08b8ff6437365 (git)
Affected: 2265c141086474bbae55a5bb3afa1ebb78ccaa7c , < ae7aeb0ce3c0ebbe357ed525779acac197a18086 (git)
Affected: 2265c141086474bbae55a5bb3afa1ebb78ccaa7c , < 17e3a441111cd1a530cd6ee69a22f3161d80d810 (git)
Affected: 2265c141086474bbae55a5bb3afa1ebb78ccaa7c , < a340a51ed801eab7bb454150c226323b865263cc (git)
Create a notification for this product.
Linux Linux Affected: 3.1
Unaffected: 0 , < 3.1 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.142 , ≤ 6.6.* (semver)
Unaffected: 6.12.92 , ≤ 6.12.* (semver)
Unaffected: 6.18.34 , ≤ 6.18.* (semver)
Unaffected: 7.0.11 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T06:26:46+00:00",
      "cve": "CVE-2026-52926",
      "id": "CVE-2026-52926",
      "initial_release_date": "2026-06-24T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: batman-adv: clear current gateway during teardown",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52926.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-16T17:58:09Z",
      "cve": "CVE-2026-52926",
      "id": "CVE-2026-52926",
      "initial_release_date": "2026-06-25T02:19:59Z",
      "product_status:known_affected": "84",
      "product_status:known_not_affected": "209",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-52926",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-52926.json",
      "version": "3"
    }
  }
}



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Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.