CVE-2026-89869

Summary

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

media: qcom: iris: use disable_irq() during power-off

The IRQ is registered as a threaded IRQ.

Using disable_irq_nosync() in iris_vpu_power_off() does not wait for an already queued threaded IRQ handler to complete before returning.

As a result, a threaded IRQ handler may still run after the VPU has been powered down and access hardware registers after power-off.

Replace disable_irq_nosync() with disable_irq() so the power-off path waits for any in-flight threaded IRQ handler to complete before returning.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxbb8a95aa038e099f5ec82c466e996b006e05abd7 < ff98cd2b8b54cf96bccace2f7b7e4775cdccaf02affected
LinuxLinuxbb8a95aa038e099f5ec82c466e996b006e05abd7 < d7f34cbaced92069400fc5d71fefe3cb4c748da8affected
LinuxLinuxbb8a95aa038e099f5ec82c466e996b006e05abd7 < b9c2215bdedc9c532a7e9d57ec49ee1b6381f863affected
LinuxLinux6.15affected
LinuxLinux0 < 6.15unaffected
LinuxLinux6.18.51 <= 6.18.*unaffected
LinuxLinux7.2.5 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References