{"id":"CVE-2026-98480","summary":"nfc: trf7970a: power down on startup RX gain failure","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: trf7970a: power down on startup RX gain failure\n\ntrf7970a_startup() powers up the device before applying the optional RX\ngain reduction. If the register read or write fails, it returns without\nundoing that power-up. Probe's unwind only drops the separate regulator\nreferences acquired by probe, leaving the additional VIN enable from\nstartup unbalanced. The system resume caller also has no power-down on\nthis error.\n\nCall trf7970a_power_down() before returning the RX gain error to deassert\nthe enable GPIOs, release the startup VIN reference and restore the\npowered-off state. Runtime PM has not been enabled yet, so the full\nshutdown helper is not appropriate here. Preserve the original SPI error.\n\nThis issue was identified during our ongoing static-analysis research while\nreviewing kernel code.","modified":"2026-10-20T02:30:48.014220909Z","published":"2026-10-18T15:15:54.528Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98480.json","cna_assigner":"Linux"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6ef70d790425e76b42c69e416ee78c62bdc37d00"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cc444e4ad43461374dd128573eccb8979d2adb4c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d2acbde7e67df44efa8f0963462d1192e7694ffc"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98480.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98480"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5d69351820eab6be1d298af21aedd18be5e5a11a"},{"fixed":"cc444e4ad43461374dd128573eccb8979d2adb4c"},{"fixed":"6ef70d790425e76b42c69e416ee78c62bdc37d00"},{"fixed":"d2acbde7e67df44efa8f0963462d1192e7694ffc"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98480.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.17.0"},{"fixed":"6.18.55"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98480.json"}}],"schema_version":"1.9.0"}