CVE-2024-39292 (GCVE-0-2024-39292)
Vulnerability from cvelistv5 – Published: 2024-06-24 13:52 – Updated: 2026-08-05 11:33
VLAI
EPSS
VEX
Title
um: Add winch to winch_handlers before registering winch IRQ
Summary
In the Linux kernel, the following vulnerability has been resolved:
um: Add winch to winch_handlers before registering winch IRQ
Registering a winch IRQ is racy, an interrupt may occur before the winch is
added to the winch_handlers list.
If that happens, register_winch_irq() adds to that list a winch that is
scheduled to be (or has already been) freed, causing a panic later in
winch_cleanup().
Avoid the race by adding the winch to the winch_handlers list before
registering the IRQ, and rolling back if um_request_irq() fails.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-24 15:15 UTC
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
42a359e31a0e438b5b978a8f0fecdbd3c86bb033 , < 66ea9a7c6824821476914bed21a476cd20094f33
(git)
Affected: 42a359e31a0e438b5b978a8f0fecdbd3c86bb033 , < dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0 (git) Affected: 42a359e31a0e438b5b978a8f0fecdbd3c86bb033 , < 351d1a64544944b44732f6a64ed65573b00b9e14 (git) Affected: 42a359e31a0e438b5b978a8f0fecdbd3c86bb033 , < 31960d991e43c8d6dc07245f19fc13398e90ead2 (git) Affected: 42a359e31a0e438b5b978a8f0fecdbd3c86bb033 , < 0c02d425a2fbe52643a5859a779db0329e7dddd4 (git) Affected: 42a359e31a0e438b5b978a8f0fecdbd3c86bb033 , < 434a06c38ee1217a8baa0dd7c37cc85d50138fb0 (git) Affected: 42a359e31a0e438b5b978a8f0fecdbd3c86bb033 , < 73b8e21f76c7dda4905655d2e2c17dc5a73b87f1 (git) Affected: 42a359e31a0e438b5b978a8f0fecdbd3c86bb033 , < a0fbbd36c156b9f7b2276871d499c9943dfe5101 (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.23
Unaffected: 0 , < 2.6.23 (semver) Unaffected: 4.19.316 , ≤ 4.19.* (semver) Unaffected: 5.4.278 , ≤ 5.4.* (semver) Unaffected: 5.10.219 , ≤ 5.10.* (semver) Unaffected: 5.15.161 , ≤ 5.15.* (semver) Unaffected: 6.1.93 , ≤ 6.1.* (semver) Unaffected: 6.6.33 , ≤ 6.6.* (semver) Unaffected: 6.9.4 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix) |
guessed |
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"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"versionType": "git"
},
{
"lessThan": "dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0",
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"versionType": "git"
},
{
"lessThan": "351d1a64544944b44732f6a64ed65573b00b9e14",
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"versionType": "git"
},
{
"lessThan": "31960d991e43c8d6dc07245f19fc13398e90ead2",
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"versionType": "git"
},
{
"lessThan": "0c02d425a2fbe52643a5859a779db0329e7dddd4",
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"versionType": "git"
},
{
"lessThan": "434a06c38ee1217a8baa0dd7c37cc85d50138fb0",
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"versionType": "git"
},
{
"lessThan": "73b8e21f76c7dda4905655d2e2c17dc5a73b87f1",
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"versionType": "git"
},
{
"lessThan": "a0fbbd36c156b9f7b2276871d499c9943dfe5101",
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"arch/um/drivers/line.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.23"
},
{
"lessThan": "2.6.23",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.316",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.278",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.219",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.161",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.93",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.33",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.9.*",
"status": "unaffected",
"version": "6.9.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.10",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.19.316",
"versionStartIncluding": "2.6.23",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.278",
"versionStartIncluding": "2.6.23",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.219",
"versionStartIncluding": "2.6.23",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.161",
"versionStartIncluding": "2.6.23",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.93",
"versionStartIncluding": "2.6.23",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.33",
"versionStartIncluding": "2.6.23",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.9.4",
"versionStartIncluding": "2.6.23",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.10",
"versionStartIncluding": "2.6.23",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\num: Add winch to winch_handlers before registering winch IRQ\n\nRegistering a winch IRQ is racy, an interrupt may occur before the winch is\nadded to the winch_handlers list.\n\nIf that happens, register_winch_irq() adds to that list a winch that is\nscheduled to be (or has already been) freed, causing a panic later in\nwinch_cleanup().\n\nAvoid the race by adding the winch to the winch_handlers list before\nregistering the IRQ, and rolling back if um_request_irq() fails."
}
],
"providerMetadata": {
"dateUpdated": "2025-05-04T09:16:11.229Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/66ea9a7c6824821476914bed21a476cd20094f33"
},
{
"url": "https://git.kernel.org/stable/c/dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0"
},
{
"url": "https://git.kernel.org/stable/c/351d1a64544944b44732f6a64ed65573b00b9e14"
},
{
"url": "https://git.kernel.org/stable/c/31960d991e43c8d6dc07245f19fc13398e90ead2"
},
{
"url": "https://git.kernel.org/stable/c/0c02d425a2fbe52643a5859a779db0329e7dddd4"
},
{
"url": "https://git.kernel.org/stable/c/434a06c38ee1217a8baa0dd7c37cc85d50138fb0"
},
{
"url": "https://git.kernel.org/stable/c/73b8e21f76c7dda4905655d2e2c17dc5a73b87f1"
},
{
"url": "https://git.kernel.org/stable/c/a0fbbd36c156b9f7b2276871d499c9943dfe5101"
}
],
"title": "um: Add winch to winch_handlers before registering winch IRQ",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-39292",
"datePublished": "2024-06-24T13:52:26.769Z",
"dateReserved": "2024-06-21T11:16:40.627Z",
"dateUpdated": "2025-11-04T17:21:58.690Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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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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