FKIE_CVE-2026-68474
Vulnerability from fkie_nvd - Published: 2026-08-15 06:20 - Updated: 2026-08-17 06:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
powerpc/spufs: fix out-of-bounds access in spufs_mem_mmap_access()
spufs_mem_mmap_access() computes the local store offset as
address - vma->vm_start, but bounds-checks it against vma->vm_end
instead of the local store size. On 64-bit, offset is always well
below vma->vm_end, so the clamp never fires and len stays unbounded
against the LS_SIZE buffer returned by ctx->ops->get_ls().
Reject offsets at or beyond LS_SIZE and clamp len to the remaining
space, mirroring the guard already used by spufs_mem_mmap_fault() and
spufs_ps_fault().
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"arch/powerpc/platforms/cell/spufs/file.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "aa7aa8ba40c089762d821e3987aaae19e1f5705c",
"status": "affected",
"version": "a352894d07059649398c4769dc8b645e1a1dad88",
"versionType": "git"
},
{
"lessThan": "d479a7711f8ff127946467b910d947bd971b94ed",
"status": "affected",
"version": "a352894d07059649398c4769dc8b645e1a1dad88",
"versionType": "git"
},
{
"lessThan": "9d3569bfdceda69d5ffd5148901e57b69954d9ef",
"status": "affected",
"version": "a352894d07059649398c4769dc8b645e1a1dad88",
"versionType": "git"
},
{
"lessThan": "d97a8f3668949a8a9d1f6202f8c53446f2d89aa7",
"status": "affected",
"version": "a352894d07059649398c4769dc8b645e1a1dad88",
"versionType": "git"
},
{
"lessThan": "913feef74354c653f10ecd4631df7618a95c49c2",
"status": "affected",
"version": "a352894d07059649398c4769dc8b645e1a1dad88",
"versionType": "git"
},
{
"lessThan": "3c1e92f75e11a11492b8cb901fceeb9f16ae6415",
"status": "affected",
"version": "a352894d07059649398c4769dc8b645e1a1dad88",
"versionType": "git"
},
{
"lessThan": "4efa313b15925bdd864784865d6585174979294b",
"status": "affected",
"version": "a352894d07059649398c4769dc8b645e1a1dad88",
"versionType": "git"
},
{
"lessThan": "47b87f469a35b5ffc81c16eee6b13a9b6c8d55c6",
"status": "affected",
"version": "a352894d07059649398c4769dc8b645e1a1dad88",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"arch/powerpc/platforms/cell/spufs/file.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.27"
},
{
"lessThan": "2.6.27",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.261",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.212",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.178",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.145",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.97",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.40",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/spufs: fix out-of-bounds access in spufs_mem_mmap_access()\n\nspufs_mem_mmap_access() computes the local store offset as\naddress - vma-\u003evm_start, but bounds-checks it against vma-\u003evm_end\ninstead of the local store size. On 64-bit, offset is always well\nbelow vma-\u003evm_end, so the clamp never fires and len stays unbounded\nagainst the LS_SIZE buffer returned by ctx-\u003eops-\u003eget_ls().\n\nReject offsets at or beyond LS_SIZE and clamp len to the remaining\nspace, mirroring the guard already used by spufs_mem_mmap_fault() and\nspufs_ps_fault()."
}
],
"id": "CVE-2026-68474",
"lastModified": "2026-08-17T06:17:56.837",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
}
]
},
"published": "2026-08-15T06:20:34.937",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3c1e92f75e11a11492b8cb901fceeb9f16ae6415"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/47b87f469a35b5ffc81c16eee6b13a9b6c8d55c6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/4efa313b15925bdd864784865d6585174979294b"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/913feef74354c653f10ecd4631df7618a95c49c2"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9d3569bfdceda69d5ffd5148901e57b69954d9ef"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/aa7aa8ba40c089762d821e3987aaae19e1f5705c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d479a7711f8ff127946467b910d947bd971b94ed"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d97a8f3668949a8a9d1f6202f8c53446f2d89aa7"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
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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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