CVE-2026-99034
Received
Received - Intake
Runtime PM Not Disabled in sdhci-sprd Linux Kernel Driver
Vulnerability report for CVE-2026-99034, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-23
Last updated on: 2026-10-23
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
mmc: sdhci-sprd: disable runtime PM on remove
sdhci_sprd_probe() enables runtime PM, while sdhci_sprd_remove() does
not perform the corresponding runtime PM cleanup.
The probe failure path disables runtime PM before disabling the clocks,
but the normal remove path directly disables clocks that are also
managed by the runtime PM callbacks. If the device is runtime
suspended, those clocks may already be disabled.
Resume the device before removal, disable runtime PM and drop the
temporary runtime PM reference before disabling the clocks.
This issue was found by manual code inspection.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | fb8bd90f83c4dd86bc7fdae406152d63c5852f92 |
| Linux | Linux | fb8bd90f83c4dd86bc7fdae406152d63c5852f92 |
| Linux | Linux | fb8bd90f83c4dd86bc7fdae406152d63c5852f92 |
| Linux | Linux | fb8bd90f83c4dd86bc7fdae406152d63c5852f92 |
| Linux | Linux | fb8bd90f83c4dd86bc7fdae406152d63c5852f92 |
| Linux | Linux | 4.20 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
