GHSA-PJ7V-5FGV-5FG6
Vulnerability from github – Published: 2025-07-04 15:31 – Updated: 2025-12-18 18:30
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
atm: Revert atm_account_tx() if copy_from_iter_full() fails.
In vcc_sendmsg(), we account skb->truesize to sk->sk_wmem_alloc by atm_account_tx().
It is expected to be reverted by atm_pop_raw() later called by vcc->dev->ops->send(vcc, skb).
However, vcc_sendmsg() misses the same revert when copy_from_iter_full() fails, and then we will leak a socket.
Let's factorise the revert part as atm_return_tx() and call it in the failure path.
Note that the corresponding sk_wmem_alloc operation can be found in alloc_tx() as of the blamed commit.
$ git blame -L:alloc_tx net/atm/common.c c55fa3cccbc2c~
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-38190"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-04T14:15:26Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\natm: Revert atm_account_tx() if copy_from_iter_full() fails.\n\nIn vcc_sendmsg(), we account skb-\u003etruesize to sk-\u003esk_wmem_alloc by\natm_account_tx().\n\nIt is expected to be reverted by atm_pop_raw() later called by\nvcc-\u003edev-\u003eops-\u003esend(vcc, skb).\n\nHowever, vcc_sendmsg() misses the same revert when copy_from_iter_full()\nfails, and then we will leak a socket.\n\nLet\u0027s factorise the revert part as atm_return_tx() and call it in\nthe failure path.\n\nNote that the corresponding sk_wmem_alloc operation can be found in\nalloc_tx() as of the blamed commit.\n\n $ git blame -L:alloc_tx net/atm/common.c c55fa3cccbc2c~",
"id": "GHSA-pj7v-5fgv-5fg6",
"modified": "2025-12-18T18:30:28Z",
"published": "2025-07-04T15:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38190"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2252c539c43f9a1431a7e8b34e3c18e9dd77a96d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/287b4f085d2ca3375cf1ee672af27410c64777e8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3902205eadf35db59dbc2186c2a98b9e6182efa5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3d828519bd69bfcaabdd942a872679617ef06739"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5e0d00992118e234ebf29d5145c1cc920342777e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7851263998d4269125fd6cb3fdbfc7c6db853859"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7d6bc28cfe5c8e3a279b4b4bdeed6698b2702685"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c12430edd92fd49a4800b0f3fb395b50cb16bcc1"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"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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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
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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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