GHSA-J72W-P49P-CJQQ

Vulnerability from github – Published: 2026-08-28 09:31 – Updated: 2026-08-29 09:30
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

batman-adv: dat: ensure accessible eth_hdr proto field

When batadv_get_vid() accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to other call sites, batadv_dat_get_vid() and its caller didn't make sure this is true. This could have caused an out-of-bounds access.

Severity
8.1 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-80599"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-28T08:16:43Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: dat: ensure accessible eth_hdr proto field\n\nWhen batadv_get_vid() accesses the proto field of the ethernet header, it\nis not checking if the data itself is accessible. The caller is responsible\nfor it. But in contrast to other call sites, batadv_dat_get_vid() and its\ncaller didn\u0027t make sure this is true. This could have caused an\nout-of-bounds access.",
  "id": "GHSA-j72w-p49p-cjqq",
  "modified": "2026-08-29T09:30:25Z",
  "published": "2026-08-28T09:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80599"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/26560c4a03dc4d607331600c187f59ab2df5f341"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c62694c31f043568c3f4784b8d247cc3bea6b4c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4407ff3af469356f9641c4a6e7072309bae86bea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5836a050d02e9598fa0f71e88dde28b63dfa35e3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d3ea37074bb747f745d28138f87745ba9bd97c5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7913935d41f166c367bbf7cc76a79e50044388e8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f76277d02176cd739945bba3379448e2e22e799"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da3677b5ed362742d30ceab31bfafcdc74dc2642"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.