CVE-2026-98480nfc: trf7970a: power down on startup RX gain failure
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | from 5d69351820eab6be1d298af21aedd18be5e5a11a before cc444e4ad43461374dd128573eccb8979d2adb4c; from 5d69351820eab6be1d298af21aedd18be5e5a11a before 6ef70d790425e76b42c69e416ee78c62bdc37d00; from 5d69351820eab6be1d298af21aedd18be5e5a11a before d2acbde7e67df44efa8f0963462d1192e7694ffc | CNA record |
References
- https://git.kernel.org/stable/c/cc444e4ad43461374dd128573eccb8979d2adb4c
- https://git.kernel.org/stable/c/6ef70d790425e76b42c69e416ee78c62bdc37d00
- https://git.kernel.org/stable/c/d2acbde7e67df44efa8f0963462d1192e7694ffc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.