CVE-2026-99034 mmc: sdhci-sprd: disable runtime PM on remove
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-99034?
CVE-2026-99034 is a vulnerability in Linux, published on 23 Oct 2026.
Official 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.
Which versions are affected by CVE-2026-99034?
How do I fix CVE-2026-99034?
Upgrade to a fixed version.
Is CVE-2026-99034 being exploited?
There is no known exploitation of CVE-2026-99034 in the wild and no public exploit code.
Sources
Also known as AZL-110897, BELL-CVE-2026-99034, DEBIAN-CVE-2026-99034, GHSA-gp3v-p42p-6pmv, UBUNTU-CVE-2026-99034.