CVE-2026-98480

nfc: trf7970a: power down on startup RX gain failure

Published Oct 18, 2026 CVSS 3.1 · 1.9 Low EPSS < 1% KEV · Not listed
Description
In the Linux kernel, the following vulnerability has been resolved:

nfc: trf7970a: power down on startup RX gain failure

trf7970a_startup() powers up the device before applying the optional RX
gain reduction. If the register read or write fails, it returns without
undoing that power-up. Probe's unwind only drops the separate regulator
references acquired by probe, leaving the additional VIN enable from
startup unbalanced. The system resume caller also has no power-down on
this error.

Call trf7970a_power_down() before returning the RX gain error to deassert
the enable GPIOs, release the startup VIN reference and restore the
powered-off state. Runtime PM has not been enabled yet, so the full
shutdown helper is not appropriate here. Preserve the original SPI error.

This issue was identified during our ongoing static-analysis research while
reviewing kernel code.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Ubuntu USN Ubuntu USN USN-9019-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-9020-1 Linux kernel vulnerabilities
History
Type Values Removed Values Added
Weaknesses CWE-404
Type Values Removed Values Added
Weaknesses CWE-772
References
Metrics threat_severity

None

cvssV3_1

{'score': 1.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L'}

threat_severity

Low

Type Values Removed Values Added
Weaknesses CWE-404
Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: nfc: trf7970a: power down on startup RX gain failure trf7970a_startup() powers up the device before applying the optional RX gain reduction. If the register read or write fails, it returns without undoing that power-up. Probe's unwind only drops the separate regulator references acquired by probe, leaving the additional VIN enable from startup unbalanced. The system resume caller also has no power-down on this error. Call trf7970a_power_down() before returning the RX gain error to deassert the enable GPIOs, release the startup VIN reference and restore the powered-off state. Runtime PM has not been enabled yet, so the full shutdown helper is not appropriate here. Preserve the original SPI error. This issue was identified during our ongoing static-analysis research while reviewing kernel code.
Title nfc: trf7970a: power down on startup RX gain failure
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Linux
Published
Updated
Oct 19, 2026, 9:20 AM
Reserved
Sep 25, 2026, 10:25 AM
Status
Received
Published
Oct 18, 2026, 4:16 PM
Modified
Oct 19, 2026, 10:18 AM
Severity
Low
Public date
Oct 18, 2026, 12:00 AM