Improper update of reference count in Linux kernel - CVE-2026-97426
Published: September 25, 2026
Vulnerability identifier: #VU152043
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97426
CWE-ID: CWE-911
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a power management reference-count imbalance.
The vulnerability exists due to improper reference count management in the amdgpu_set_smartshift_bias function when handling an invalid integer value written to the SmartShift bias sysfs attribute. A local user can write an invalid integer value to the SmartShift bias sysfs attribute to cause a power management reference-count imbalance.
Affected software
Linux kernel
How to mitigate CVE-2026-97426
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3