CVE-2025-71200 (GCVE-0-2025-71200)

Vulnerability from cvelistv5 – Published: 2026-02-14 15:09 – Updated: 2026-02-14 15:09
VLAI?
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 ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 , < 59b8a1ca6df4db2ca250e9eeab74e2b0068d69e9 (git)
Affected: c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 , < f2677d6e2bbc5ba2030825522d2afd0542b038a3 (git)
Affected: c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 , < de0ad7156036a50982bcb75a080e4af284502be2 (git)
Affected: c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 , < 36be050f21dea7a3a76dff5a031da6274e8ee468 (git)
Affected: c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 , < 3009738a855cf938bbfc9078bec725031ae623a4 (git)
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    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)
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{
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          "programFiles": [
            "drivers/mmc/host/sdhci-of-dwcmshc.c"
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          "vendor": "Linux",
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      "descriptions": [
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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..."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-14T15:09:45.689Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/59b8a1ca6df4db2ca250e9eeab74e2b0068d69e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/f2677d6e2bbc5ba2030825522d2afd0542b038a3"
        },
        {
          "url": "https://git.kernel.org/stable/c/de0ad7156036a50982bcb75a080e4af284502be2"
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        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/3009738a855cf938bbfc9078bec725031ae623a4"
        }
      ],
      "title": "mmc: sdhci-of-dwcmshc: Prevent illegal clock reduction in HS200/HS400 mode",
      "x_generator": {
        "engine": "bippy-1.2.0"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71200",
    "datePublished": "2026-02-14T15:09:45.689Z",
    "dateReserved": "2026-01-31T11:36:51.193Z",
    "dateUpdated": "2026-02-14T15:09:45.689Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-71200\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-02-14T15:16:05.980\",\"lastModified\":\"2026-02-14T15:16:05.980\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"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...\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3009738a855cf938bbfc9078bec725031ae623a4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/36be050f21dea7a3a76dff5a031da6274e8ee468\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/59b8a1ca6df4db2ca250e9eeab74e2b0068d69e9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/de0ad7156036a50982bcb75a080e4af284502be2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f2677d6e2bbc5ba2030825522d2afd0542b038a3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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  • 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.
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