Race condition in Linux kernel - CVE-2026-89869
Published: September 17, 2026
Vulnerability identifier: #VU150409
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89869
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause VPU hardware registers to be accessed after power-off.
The vulnerability exists due to a race condition in the Qualcomm Iris VPU driver's iris_vpu_power_off() function when a threaded IRQ handler remains queued during VPU power-off. A local user can trigger VPU power-off while a threaded IRQ handler is queued to cause VPU hardware registers to be accessed after power-off.
Affected software
Linux kernel
How to mitigate CVE-2026-89869
Install security update from vendor's repository.