GHSA-5GGV-7QRF-GVXF

Vulnerability from github – Published: 2026-02-14 15:32 – Updated: 2026-02-14 15:32
VLAI?
Details

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 ...

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-71200"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-14T15:16:05Z",
    "severity": null
  },
  "details": "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...",
  "id": "GHSA-5ggv-7qrf-gvxf",
  "modified": "2026-02-14T15:32:18Z",
  "published": "2026-02-14T15:32:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71200"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3009738a855cf938bbfc9078bec725031ae623a4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36be050f21dea7a3a76dff5a031da6274e8ee468"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/59b8a1ca6df4db2ca250e9eeab74e2b0068d69e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de0ad7156036a50982bcb75a080e4af284502be2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2677d6e2bbc5ba2030825522d2afd0542b038a3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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