CVE-2023-52615 (GCVE-0-2023-52615)
Vulnerability from cvelistv5 – Published: 2024-03-18 10:14 – Updated: 2026-05-11 19:30
VLAI
EPSS
VEX
Title
hwrng: core - Fix page fault dead lock on mmap-ed hwrng
Summary
In the Linux kernel, the following vulnerability has been resolved:
hwrng: core - Fix page fault dead lock on mmap-ed hwrng
There is a dead-lock in the hwrng device read path. This triggers
when the user reads from /dev/hwrng into memory also mmap-ed from
/dev/hwrng. The resulting page fault triggers a recursive read
which then dead-locks.
Fix this by using a stack buffer when calling copy_to_user.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:55 UTC
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
9996508b3353063f2d6c48c1a28a84543d72d70b , < eafd83b92f6c044007a3591cbd476bcf90455990
(git)
Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < 5030d4c798863ccb266563201b341a099e8cdd48 (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < c6a8111aacbfe7a8a70f46cc0de8eed00561693c (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < 26cc6d7006f922df6cc4389248032d955750b2a0 (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < aa8aa16ed9adf1df05bb339d588cf485a011839e (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < ecabe8cd456d3bf81e92c53b074732f3140f170d (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < 6822a14271786150e178869f1495cc03e74c5029 (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < 78aafb3884f6bc6636efcc1760c891c8500b9922 (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.33
Unaffected: 0 , < 2.6.33 (semver) Unaffected: 4.19.307 , ≤ 4.19.* (semver) Unaffected: 5.4.269 , ≤ 5.4.* (semver) Unaffected: 5.10.210 , ≤ 5.10.* (semver) Unaffected: 5.15.149 , ≤ 5.15.* (semver) Unaffected: 6.1.76 , ≤ 6.1.* (semver) Unaffected: 6.6.15 , ≤ 6.6.* (semver) Unaffected: 6.7.3 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix) |
guessed |
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.15",
"versionStartIncluding": "2.6.33",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.7.3",
"versionStartIncluding": "2.6.33",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.8",
"versionStartIncluding": "2.6.33",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: core - Fix page fault dead lock on mmap-ed hwrng\n\nThere is a dead-lock in the hwrng device read path. This triggers\nwhen the user reads from /dev/hwrng into memory also mmap-ed from\n/dev/hwrng. The resulting page fault triggers a recursive read\nwhich then dead-locks.\n\nFix this by using a stack buffer when calling copy_to_user."
}
],
"providerMetadata": {
"dateUpdated": "2025-05-04T07:39:56.098Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/eafd83b92f6c044007a3591cbd476bcf90455990"
},
{
"url": "https://git.kernel.org/stable/c/5030d4c798863ccb266563201b341a099e8cdd48"
},
{
"url": "https://git.kernel.org/stable/c/c6a8111aacbfe7a8a70f46cc0de8eed00561693c"
},
{
"url": "https://git.kernel.org/stable/c/26cc6d7006f922df6cc4389248032d955750b2a0"
},
{
"url": "https://git.kernel.org/stable/c/aa8aa16ed9adf1df05bb339d588cf485a011839e"
},
{
"url": "https://git.kernel.org/stable/c/ecabe8cd456d3bf81e92c53b074732f3140f170d"
},
{
"url": "https://git.kernel.org/stable/c/6822a14271786150e178869f1495cc03e74c5029"
},
{
"url": "https://git.kernel.org/stable/c/78aafb3884f6bc6636efcc1760c891c8500b9922"
}
],
"title": "hwrng: core - Fix page fault dead lock on mmap-ed hwrng",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-52615",
"datePublished": "2024-03-18T10:14:45.503Z",
"dateReserved": "2024-03-06T09:52:12.089Z",
"dateUpdated": "2025-05-04T07:39:56.098Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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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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