Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-98529

Vulnerability identifier: #VU156831

CSH Severity: Low

CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-98529

CWE-ID: CWE-772

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to interfere with runtime power management, potentially preventing a parent device from entering runtime suspend.

The vulnerability exists due to a missing runtime power-management reference release in arizona_gpio_direction_out() in the Linux kernel's Arizona GPIO driver when a register update fails while switching a persistent GPIO line from input to output. A local user can initiate this direction change and, if regmap_update_bits() fails, leave an outstanding reference that may prevent the parent device from entering runtime suspend.

Linux kernel
Ubuntu
linux-nvidia-tegra (Ubuntu package)
linux-nvidia-tegra-igx (Ubuntu package)
linux-nvidia-tegra-5.15 (Ubuntu package)
linux (Ubuntu package)
linux-gcp (Ubuntu package)
linux-oracle (Ubuntu package)
linux-aws (Ubuntu package)
linux-ibm (Ubuntu package)
linux-hwe-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
linux-nvidia-tegra (Ubuntu package) - update to 5.15.0-1070.72
linux-nvidia-tegra-igx (Ubuntu package) - update to 5.15.0-1059.59
linux-nvidia-tegra-5.15 (Ubuntu package) - update to 5.15.0-1070.72~20.04.1
linux (Ubuntu package) - update to 7.0.0-42.42
linux-gcp (Ubuntu package) - update to 7.0.0-1016.18
linux-oracle (Ubuntu package) - update to 7.0.0-1015.16
linux-aws (Ubuntu package) - update to 7.0.0-1016.17
linux-ibm (Ubuntu package) - update to 7.0.0-1017.17
linux-hwe-7.0 (Ubuntu package) - update to 7.0.0-42.42~24.04.1
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1017.17

• https://git.kernel.org/stable/c/39748357db26b20a02ea2a25ce48943e6c6d6286
• https://git.kernel.org/stable/c/40c010c1866382cb63ba7497d6ec74fcc60ab9cf
• https://git.kernel.org/stable/c/5c8e87f33b68557a725e72f34051299f55c6fa9e
• https://git.kernel.org/stable/c/61ed58b745c1186006b8357da651abbb7a6bff17
• https://git.kernel.org/stable/c/9d8d6cddcb7c0b8125f3a9e52492e929674009d8
• https://git.kernel.org/stable/c/9ee200f484983b0a178c593e57d2fe3e67061ee8
• https://git.kernel.org/stable/c/a9f738487c11fb512dadef097b56020239c21810
• https://git.kernel.org/stable/c/e9d810279f84b30738f7790c0ed15f8dd5b9024a

• Missing Release of Resource after Effective Lifetime in Linux kernel gpio driver
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux, linux-aws, linux-gcp and more
• Ubuntu update for linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx
• Ubuntu update for linux, linux-aws, linux-aws-5.15 and more