Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-98502

Vulnerability identifier: #VU156803

CSH Severity: Low

CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-98502

CWE-ID: CWE-772

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to exhaust kernel resources and potentially cause a denial of service.

The vulnerability exists due to missing resource release in the Linux kernel ALPS HID driver when removing a device. The separately allocated and registered DualPoint Stick input device is not tracked in hdev->inputs and is never unregistered by the default removal path. A local user can repeatedly trigger removal of affected devices to accumulate leaked input devices and potentially exhaust kernel resources.

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-gcp (Ubuntu package)
linux-oracle (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 (Ubuntu package) - update to 7.0.0-42.42
linux-aws (Ubuntu package) - update to 7.0.0-1016.17
linux-gcp (Ubuntu package) - update to 7.0.0-1016.18
linux-oracle (Ubuntu package) - update to 7.0.0-1015.16
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/1170ebfba562b3938ff7749b2e42e4420f19436d
• https://git.kernel.org/stable/c/978e801750c7b0859e87eae619f7d88fcd88333e
• https://git.kernel.org/stable/c/aa4845a710ae9fee6a3831f5c338904cea77c3aa
• https://git.kernel.org/stable/c/aa9dde93e05a837645fdfd577eea71f0733f0694
• https://git.kernel.org/stable/c/bd9571812d02242b6bba2637fba924a78a5c6fa8

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