Live › vulnerability › CVE-2026-98480
Go to dashboardIn the Linux kernel's trf7970a NFC driver, a failed RX gain register access during startup returns without powering the device back down, leaving the VIN enable unbalanced. The sources describe a resource and power-state imbalance found by static analysis, not a confirmed remote compromise.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
Systems running a Linux kernel with the trf7970a NFC reader driver, typically embedded boards or hardware using that TI NFC chip with an SPI connection. Systems without this NFC hardware or driver are not affected. The sources do not say which kernel versions are impacted.
No product ranges from the sources yet.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
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