Local storage interruption via illegal clock reduction
Published Feb 14, 2026 · Updated Feb 14, 2026
Denial of service in affected Linux kernel releases starting at 6.0 allows local users to disrupt MMC storage through debugfs. dwcmshc_rk3568_set_clock() accepts a requested clock below 52 MHz while HS200 or HS400 is active, although Rockchip DWC MSHC requires at least 52 MHz, breaking the link. Local users must be able to write the MMC debugfs clock control on a Rockchip RK3588 system in HS200 or HS400 mode; triggering it causes CQE recovery failures and interrupts storage access.
Summary
What happened
Denial of service in affected Linux kernel releases starting at 6.0 allows local users to disrupt MMC storage through debugfs. dwcmshc_rk3568_set_clock() accepts a requested clock below 52 MHz while HS200 or HS400 is active, although Rockchip DWC MSHC requires at least 52 MHz, breaking the link. Local users must be able to write the MMC debugfs clock control on a Rockchip RK3588 system in HS200 or HS400 mode; triggering it causes CQE recovery failures and interrupts storage access.
The record
- CVE
- CVE-2025-71200
- Published
- Feb 14, 2026
- Updated
- Feb 14, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux Kernel
- Classifications
- T1499
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Feb 14, 2026CVE publishedPublication date reported by the CVE source.
- Feb 14, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=6.0
- Affected versionversion=c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 <3009738a855cf938bbfc9078bec725031ae623a4
- Affected versionversion=c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 <36be050f21dea7a3a76dff5a031da6274e8ee468
- Affected versionversion=c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 <59b8a1ca6df4db2ca250e9eeab74e2b0068d69e9
- Affected versionversion=c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 <de0ad7156036a50982bcb75a080e4af284502be2
- Affected versionversion=c6f361cba51c536e7a6af31973c6a4e5d7e4e2e4 <f2677d6e2bbc5ba2030825522d2afd0542b038a3
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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