GHSA-3C34-Q5W8-C59M
Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-17 06:33
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()
qrtr_endpoint_post() validates an incoming packet with
if (!size || len != ALIGN(size, 4) + hdrlen)
goto err;
where size comes from the wire. On 32-bit, size_t is 32 bits and ALIGN(size, 4) wraps to 0 for size >= 0xfffffffd, so the check passes and skb_put_data(skb, data + hdrlen, size) writes past the hdrlen-sized skb and oopses the kernel. 64-bit is unaffected.
This is the 32-bit residual of ad9d24c9429e2 ("net: qrtr: fix OOB Read in qrtr_endpoint_post"), which fixed only the 64-bit case.
Reject any size that cannot fit the buffer before the ALIGN.
Severity
8.4 (High)
{
"affected": [],
"aliases": [
"CVE-2026-72298"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-15T06:22:02Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()\n\nqrtr_endpoint_post() validates an incoming packet with\n\n\tif (!size || len != ALIGN(size, 4) + hdrlen)\n\t\tgoto err;\n\nwhere size comes from the wire. On 32-bit, size_t is 32 bits and\nALIGN(size, 4) wraps to 0 for size \u003e= 0xfffffffd, so the check\npasses and skb_put_data(skb, data + hdrlen, size) writes past the\nhdrlen-sized skb and oopses the kernel. 64-bit is unaffected.\n\nThis is the 32-bit residual of ad9d24c9429e2 (\"net: qrtr: fix OOB\nRead in qrtr_endpoint_post\"), which fixed only the 64-bit case.\n\nReject any size that cannot fit the buffer before the ALIGN.",
"id": "GHSA-3c34-q5w8-c59m",
"modified": "2026-08-17T06:33:22Z",
"published": "2026-08-15T06:32:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72298"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/20054869770c7df060c5ecee3e8bbf9029c47191"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/22100a8f73d4ae4f17697dae93d4e2e1d283a6ec"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/242408b5b763c01288adf3113cbce84378a76e1a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3665e644ea081c4624a1637023b0de3b29f4ae04"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/689b7267f8632b4661879dc323e26ebb60978afb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7f72c285f6d3bf63968a0344beee8ab1b370198b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b609f7f46916c6b05585ca82455077198a23770f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d0597074e99731fdad5593e4f6d056a3866f2cab"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.
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- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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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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