CVE-2025-38546 (GCVE-0-2025-38546)
Vulnerability from cvelistv5 – Published: 2025-08-16 11:22 – Updated: 2026-05-11 21:30
VLAI
EPSS
VEX
Title
atm: clip: Fix memory leak of struct clip_vcc.
Summary
In the Linux kernel, the following vulnerability has been resolved:
atm: clip: Fix memory leak of struct clip_vcc.
ioctl(ATMARP_MKIP) allocates struct clip_vcc and set it to
vcc->user_back.
The code assumes that vcc_destroy_socket() passes NULL skb
to vcc->push() when the socket is close()d, and then clip_push()
frees clip_vcc.
However, ioctl(ATMARPD_CTRL) sets NULL to vcc->push() in
atm_init_atmarp(), resulting in memory leak.
Let's serialise two ioctl() by lock_sock() and check vcc->push()
in atm_init_atmarp() to prevent memleak.
Severity
5.5 (Medium)
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2fb37ab3226606cbfc9b2b6f9e301b0b735734c5
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9e4dbeee56f614e3f1e166e5d0655a999ea185ef (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1c075e88d5859a2c6b43b27e0e46fb281cef8039 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0c17ff462d98c997d707ee5cf4e4a9b1b52b9d90 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1fb9fb5a4b5cec2d56e26525ef8c519de858fa60 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9f771816f14da6d6157a8c30069091abf6b566fb (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < cb2e4a2f8f268d8fba6662f663a2e57846f14a8d (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 62dba28275a9a3104d4e33595c7b3328d4032d8d (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.12
Unaffected: 0 , < 2.6.12 (semver) Unaffected: 5.4.296 , ≤ 5.4.* (semver) Unaffected: 5.10.240 , ≤ 5.10.* (semver) Unaffected: 5.15.189 , ≤ 5.15.* (semver) Unaffected: 6.1.146 , ≤ 6.1.* (semver) Unaffected: 6.6.99 , ≤ 6.6.* (semver) Unaffected: 6.12.39 , ≤ 6.12.* (semver) Unaffected: 6.15.7 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
guessed |
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{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: atm: clip: Se corrige la fuga de memoria de la estructura clip_vcc. ioctl(ATMARP_MKIP) asigna la estructura clip_vcc y la establece en vcc-\u0026gt;user_back. El c\u00f3digo asume que vcc_destroy_socket() pasa un skb nulo a vcc-\u0026gt;push() cuando se cierra el socket, y que clip_push() libera clip_vcc. Sin embargo, ioctl(ATMARPD_CTRL) establece vcc-\u0026gt;push() en nulo en atm_init_atmarp(), lo que provoca una fuga de memoria. Serialicemos dos ioctl() mediante lock_sock() y comprobemos vcc-\u0026gt;push() en atm_init_atmarp() para evitar fugas de memoria."
}
],
"id": "CVE-2025-38546",
"lastModified": "2026-06-17T09:17:05.023",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2025-08-16T12:15:30.620",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/0c17ff462d98c997d707ee5cf4e4a9b1b52b9d90"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/1c075e88d5859a2c6b43b27e0e46fb281cef8039"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/1fb9fb5a4b5cec2d56e26525ef8c519de858fa60"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/2fb37ab3226606cbfc9b2b6f9e301b0b735734c5"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/62dba28275a9a3104d4e33595c7b3328d4032d8d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/9e4dbeee56f614e3f1e166e5d0655a999ea185ef"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/9f771816f14da6d6157a8c30069091abf6b566fb"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/cb2e4a2f8f268d8fba6662f663a2e57846f14a8d"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-401"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-06-30T10:29:55+00:00",
"cve": "CVE-2025-38546",
"id": "CVE-2025-38546",
"initial_release_date": "2025-08-16T00:00:00+00:00",
"product_status:known_affected": "198",
"product_status:known_not_affected": "76",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: Linux kernel: Memory leak in ATM clip module can lead to denial of service",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38546.json",
"version": "3"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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
- 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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.