CVE-2026-43275 scsi: ufs: core: Flush exception handling work when RPM level is zero

Medium 4.7 Published 6 May 2026 Updated 11 May 2026

A race condition in the Linux kernel UFS driver causes a system crash when exception handling work is not flushed during suspend at zero RPM level.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2026-43275?

CVE-2026-43275 is a medium-severity vulnerability in Linux kernel, published on 6 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

scsi: ufs: core: Flush exception handling work when RPM level is zero

Ensure that the exception event handling work is explicitly flushed during suspend when the runtime power management level is set to UFS_PM_LVL_0.

When the RPM level is zero, the device power mode and link state both remain active. Previously, the UFS core driver bypassed flushing exception event handling jobs in this configuration. This created a race condition where the driver could attempt to access the host controller to handle an exception after the system had already entered a deep power-down state, resulting in a system crash.

Explicitly flush this work and disable auto BKOPs before the suspend callback proceeds. This guarantees that pending exception tasks complete and prevents illegal hardware access during the power-down sequence.

Weakness: CWE-362

Which versions are affected by CVE-2026-43275?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-43275?

Apply the vendor's patch.

Is CVE-2026-43275 being exploited?

There is no known exploitation of CVE-2026-43275 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2026-43275, DEBIAN-CVE-2026-43275, GHSA-c8jc-4xgp-98r9, ROOT-OS-DEBIAN-11-CVE-2026-43275, ROOT-OS-UBUNTU-2204-CVE-2026-43275, ROOT-OS-UBUNTU-2404-CVE-2026-43275 and 1 more.