CVE-2026-53215 (GCVE-0-2026-53215)
Vulnerability from cvelistv5 – Published: 2026-06-25 08:39 – Updated: 2026-08-05 12:34
VLAI
EPSS
VEX
Title
net: mvpp2: refill RX buffers before XDP or skb use
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: mvpp2: refill RX buffers before XDP or skb use
The RX error path returns the current descriptor buffer to the hardware
BM pool. That is only valid while the driver still owns the buffer.
mvpp2_rx_refill() can fail after the current buffer has been handed to
XDP or attached to an skb. In those cases mvpp2_run_xdp() may have
recycled, redirected, or queued the page for XDP_TX, and an skb free also
retires the data buffer. Returning such a buffer to BM lets hardware DMA
into memory that is no longer owned by the RX ring.
Refill the BM pool before handing the current buffer to XDP or to the
skb. If the allocation fails there, drop the packet and return the
still-owned current buffer to BM, preserving the pool depth. Once the
refill succeeds, later local drops retire/free the current buffer instead
of returning it to BM.
Severity
9.8 (Critical)
Assigner
References
7 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
07dd0a7aae7f72af7cec18909581c2bb570edddc , < a88b3293b556f4d8fba11db9a8061a6b0d3b69e6
(git)
Affected: 07dd0a7aae7f72af7cec18909581c2bb570edddc , < a03cdcedb2cbcc42551dc3e4746929e93c5352d5 (git) Affected: 07dd0a7aae7f72af7cec18909581c2bb570edddc , < 580f92f27cb8724bcc4be98ee89890eab524a2ae (git) Affected: 07dd0a7aae7f72af7cec18909581c2bb570edddc , < d0c8c4fbd22d260fe28530260656c5fb3c20ce84 (git) Affected: 07dd0a7aae7f72af7cec18909581c2bb570edddc , < 8a2126c5afe89f8ceeb60a3afb9f075b736194cd (git) Affected: 07dd0a7aae7f72af7cec18909581c2bb570edddc , < 02e1b5c4d3b4c658b72c145427cded1bba613fc1 (git) Affected: 07dd0a7aae7f72af7cec18909581c2bb570edddc , < 5e8e2a9624df72fca7c736b2966b2cbf6c9c3ff6 (git) Affected: 95a936364f2685e9e040c6b179b553604d96de22 (git) Affected: fba2cf348d9eb50b2049a73cc09313dab6d293f1 (git) Affected: 5.7.15 , < 5.8 (semver) Affected: 5.8.2 , < 5.9 (semver) |
guessed | |
| Linux | Linux |
Affected:
5.9
Unaffected: 0 , < 5.9 (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.94 , ≤ 6.12.* (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
guessed |
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],
"id": "CVE-2026-53215",
"lastModified": "2026-07-02T20:52:41.347",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
}
]
},
"published": "2026-06-25T09:16:39.160",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/02e1b5c4d3b4c658b72c145427cded1bba613fc1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/580f92f27cb8724bcc4be98ee89890eab524a2ae"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/5e8e2a9624df72fca7c736b2966b2cbf6c9c3ff6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/8a2126c5afe89f8ceeb60a3afb9f075b736194cd"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/a03cdcedb2cbcc42551dc3e4746929e93c5352d5"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/a88b3293b556f4d8fba11db9a8061a6b0d3b69e6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/d0c8c4fbd22d260fe28530260656c5fb3c20ce84"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-26T00:18:18+00:00",
"cve": "CVE-2026-53215",
"id": "CVE-2026-53215",
"initial_release_date": "2026-06-25T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: net: mvpp2: refill RX buffers before XDP or skb use",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53215.json",
"version": "3"
}
}
}
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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
- 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.
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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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