mmc: sdhci-of-dwcmshc: Prevent illegal clock reduction in HS200/HS400 mode (Linux Linux)

CVE-2025-71200
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.13 % · percentile 3 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

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 ...

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 < 59b8a1ca6df4db2ca250e9eeab74e2b0068d69e9 ; affected c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 < f2677d6e2bbc5ba2030825522d2afd0542b038a3 ; affected c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 < de0ad7156036a50982bcb75a080e4af284502be2 ; affected c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 < 36be050f21dea7a3a76dff5a031da6274e8ee468 ; affected c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 < 3009738a855cf938bbfc9078bec725031ae623a4
Linux · Linuxaffected 6.0 ; unaffected 0 < 6.0 ; unaffected 6.1.162 ≤ 6.1.* ; unaffected 6.6.122 ≤ 6.6.* ; unaffected 6.12.68 ≤ 6.12.* ; unaffected 6.18.8 ≤ 6.18.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD