CVE-2025-71200 (GCVE-0-2025-71200)
Vulnerability from cvelistv5 – Published: 2026-02-14 15:09 – Updated: 2026-05-11 21:56
VLAI
EPSS
VEX
Title
mmc: sdhci-of-dwcmshc: Prevent illegal clock reduction in HS200/HS400 mode
Summary
In the Linux kernel, the following vulnerability has been resolved:
mmc: sdhci-of-dwcmshc: Prevent illegal clock reduction in HS200/HS400 mode
When operating in HS200 or HS400 timing modes, reducing the clock frequency
below 52MHz will lead to link broken as the Rockchip DWC MSHC controller
requires maintaining a minimum clock of 52MHz in these modes.
Add a check to prevent illegal clock reduction through debugfs:
root@debian:/# echo 50000000 > /sys/kernel/debug/mmc0/clock
root@debian:/# [ 30.090146] mmc0: running CQE recovery
mmc0: cqhci: Failed to halt
mmc0: cqhci: spurious TCN for tag 0
WARNING: drivers/mmc/host/cqhci-core.c:797 at cqhci_irq+0x254/0x818, CPU#1: kworker/1:0H/24
Modules linked in:
CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0H Not tainted 6.19.0-rc1-00001-g09db0998649d-dirty #204 PREEMPT
Hardware name: Rockchip RK3588 EVB1 V10 Board (DT)
Workqueue: kblockd blk_mq_run_work_fn
pstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : cqhci_irq+0x254/0x818
lr : cqhci_irq+0x254/0x818
...
Severity
5.5 (Medium)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 , < 59b8a1ca6df4db2ca250e9eeab74e2b0068d69e9
(git)
Affected: c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 , < f2677d6e2bbc5ba2030825522d2afd0542b038a3 (git) Affected: c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 , < de0ad7156036a50982bcb75a080e4af284502be2 (git) Affected: c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 , < 36be050f21dea7a3a76dff5a031da6274e8ee468 (git) Affected: c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 , < 3009738a855cf938bbfc9078bec725031ae623a4 (git) |
guessed | |
| Linux | Linux |
Affected:
6.0
Unaffected: 0 , < 6.0 (semver) Unaffected: 6.1.162 , ≤ 6.1.* (semver) Unaffected: 6.6.122 , ≤ 6.6.* (semver) Unaffected: 6.12.68 , ≤ 6.12.* (semver) Unaffected: 6.18.8 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix) |
guessed |
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},
{
"url": "https://git.kernel.org/stable/c/3009738a855cf938bbfc9078bec725031ae623a4"
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"title": "mmc: sdhci-of-dwcmshc: Prevent illegal clock reduction in HS200/HS400 mode",
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: sdhci-of-dwcmshc: Prevent illegal clock reduction in HS200/HS400 mode\n\nWhen operating in HS200 or HS400 timing modes, reducing the clock frequency\nbelow 52MHz will lead to link broken as the Rockchip DWC MSHC controller\nrequires maintaining a minimum clock of 52MHz in these modes.\n\nAdd a check to prevent illegal clock reduction through debugfs:\n\nroot@debian:/# echo 50000000 \u003e /sys/kernel/debug/mmc0/clock\nroot@debian:/# [ 30.090146] mmc0: running CQE recovery\nmmc0: cqhci: Failed to halt\nmmc0: cqhci: spurious TCN for tag 0\nWARNING: drivers/mmc/host/cqhci-core.c:797 at cqhci_irq+0x254/0x818, CPU#1: kworker/1:0H/24\nModules linked in:\nCPU: 1 UID: 0 PID: 24 Comm: kworker/1:0H Not tainted 6.19.0-rc1-00001-g09db0998649d-dirty #204 PREEMPT\nHardware name: Rockchip RK3588 EVB1 V10 Board (DT)\nWorkqueue: kblockd blk_mq_run_work_fn\npstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : cqhci_irq+0x254/0x818\nlr : cqhci_irq+0x254/0x818\n..."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmmc: sdhci-of-dwcmshc: Evitar la reducci\u00f3n ilegal del reloj en modo HS200/HS400\n\nAl operar en los modos de temporizaci\u00f3n HS200 o HS400, reducir la frecuencia del reloj por debajo de 52MHz provocar\u00e1 la interrupci\u00f3n del enlace, ya que el controlador Rockchip DWC MSHC requiere mantener un reloj m\u00ednimo de 52MHz en estos modos.\n\nA\u00f1adir una comprobaci\u00f3n para evitar la reducci\u00f3n ilegal del reloj a trav\u00e9s de debugfs:\n\nroot@debian:/# echo 50000000 \u0026gt; /sys/kernel/debug/mmc0/clock\nroot@debian:/# [ 30.090146] mmc0: ejecutando recuperaci\u00f3n de CQE\nmmc0: cqhci: Fallo al detener\nmmc0: cqhci: TCN espurio para la etiqueta 0\nADVERTENCIA: drivers/mmc/host/cqhci-core.c:797 en cqhci_irq+0x254/0x818, CPU#1: kworker/1:0H/24\nM\u00f3dulos enlazados:\nCPU: 1 UID: 0 PID: 24 Comm: kworker/1:0H No contaminado 6.19.0-rc1-00001-g09db0998649d-dirty #204 PREEMPT\nNombre del hardware: Placa Rockchip RK3588 EVB1 V10 (DT)\nCola de trabajo: kblockd blk_mq_run_work_fn\npstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : cqhci_irq+0x254/0x818\nlr : cqhci_irq+0x254/0x818\n..."
}
],
"id": "CVE-2025-71200",
"lastModified": "2026-06-17T10:03:52.430",
"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": "2026-02-14T15:16:05.980",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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],
"url": "https://git.kernel.org/stable/c/3009738a855cf938bbfc9078bec725031ae623a4"
},
{
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"tags": [
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},
{
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}
],
"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": "2026-06-28T11:40:15+00:00",
"cve": "CVE-2025-71200",
"id": "CVE-2025-71200",
"initial_release_date": "2025-01-01T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: mmc: sdhci-of-dwcmshc: Prevent illegal clock reduction in HS200/HS400 mode",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-71200.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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