Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-98480

Vulnerability identifier: #VU156780

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-2026-98480

CWE-ID: CWE-772

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to leave an NFC device powered on after a failed startup, potentially causing unnecessary power consumption.

The vulnerability exists due to missing release of a power-management resource in trf7970a_startup() when a register read or write fails while applying optional RX gain reduction. A local user can potentially trigger an affected startup attempt to leave the device powered on with an unreleased VIN regulator reference.

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/6ef70d790425e76b42c69e416ee78c62bdc37d00
• https://git.kernel.org/stable/c/cc444e4ad43461374dd128573eccb8979d2adb4c
• https://git.kernel.org/stable/c/d2acbde7e67df44efa8f0963462d1192e7694ffc

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