{"apiVersion":"1.0","identifier":"CVE-2026-80648","description":"In the Linux kernel, the following vulnerability has been resolved: pinctrl: spacemit: fix NULL check in spacemit_pin_set_config spacemit_pin_set_config() looks up the per-pin descriptor with spacemit_get_pin() then checks the wrong variable for failure: const struct spacemit_pin *spin = spacemit_get_pin(pctrl, pin); ... if (!pin) return -EINVAL; reg = spacemit_pin_to_reg(pctrl, spin->pin); pin is an unsigned int pin id, where 0 (GPIO_0 / gmac0_rxdv on K3) is a valid pin, so rejecting it here drops the PAD config write for the first pin of every group. On K3 Pico-ITX the GMAC RGMII group lists pin 0 as its first entry, so its drive-strength / bias configuration was silently ignored. The intended guard is against spacemit_get_pin() returning NULL when the pin id isn-t in the SoC-s pin table. Check spin instead, which both restores PAD setup for pin 0 and prevents a NULL deref on spin->pin.","publishedAt":"2026-08-28T08:16:49","lastModifiedAt":"2026-08-28T08:16:49","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80648","cvssScore":null,"cvssVector":"Pending","epssProbability":0.00166,"riskScore":0,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-80648","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-80648","en":"https://www.redsauce.net/en/cves/CVE-2026-80648","fr":"https://www.redsauce.net/fr/cves/CVE-2026-80648","pt":"https://www.redsauce.net/pt/cves/CVE-2026-80648","de":"https://www.redsauce.net/de/cves/CVE-2026-80648","sk":"https://www.redsauce.net/sk/cves/CVE-2026-80648","el":"https://www.redsauce.net/el/cves/CVE-2026-80648"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-80648"}}