GHSA-7C77-5HJP-3754
Vulnerability from github – Published: 2026-06-24 09:30 – Updated: 2026-07-08 15:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: v: stop OGMv2 on disabled interface
When a batadv_hard_iface is disabled, its mesh_iface pointer is set to NULL. However, batadv_v_ogm_send_meshif() may still dispatch OGMs via batadv_v_ogm_queue_on_if() for interfaces that have since lost their mesh_iface association. This results in a NULL pointer dereference when batadv_v_ogm_queue_on_if() unconditionally calls netdev_priv() on the now NULL hard_iface->mesh_iface to retrieve the batadv_priv.
It is necessary to ensure that the batadv_v_ogm_queue_on_if() checks that it is using the same mesh_iface for which batadv_v_ogm_send_meshif() was called.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-52913"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-24T08:16:21Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: v: stop OGMv2 on disabled interface\n\nWhen a batadv_hard_iface is disabled, its mesh_iface pointer is set to\nNULL. However, batadv_v_ogm_send_meshif() may still dispatch OGMs via\nbatadv_v_ogm_queue_on_if() for interfaces that have since lost their\nmesh_iface association. This results in a NULL pointer dereference when\nbatadv_v_ogm_queue_on_if() unconditionally calls netdev_priv() on the\nnow NULL hard_iface-\u003emesh_iface to retrieve the batadv_priv.\n\nIt is necessary to ensure that the batadv_v_ogm_queue_on_if() checks that\nit is using the same mesh_iface for which batadv_v_ogm_send_meshif() was\ncalled.",
"id": "GHSA-7c77-5hjp-3754",
"modified": "2026-07-08T15:31:43Z",
"published": "2026-06-24T09:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52913"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/040fe8eb34624002071dd21de9824dfe668ce65d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1be1e99cbd5b74a69d3f92200ca87cf1bce852db"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/31dcb9711abd1dcd2080d9fac05c79dd9997d6bf"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4ff461af943efb5e74d09942d5ffee7644d1e1fe"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/70c9f6ab0d8f785087fb74fb85464a9a5288bfdb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/aad70db50ea3d7dfe30e402b889ff075a293b287"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d7391a2b854a62235539c68e9cbf6fc7910a8e9a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f8ce8b8331a1bc44ad4905886a482214d428b253"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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
| 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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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