{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a83c29e1d145cca5240952100acd1cd60f25fb5f"
            },
            {
              "fixed": "7a551951ebeb5b3f05bdb04a73d4593869c984c4"
            },
            {
              "fixed": "d3b53f0eda26e442ff97016ad4a0724db8fd3781"
            },
            {
              "fixed": "09c816e5c4d3a8d6d6e4b7537433e5e98505d934"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80648.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: spacemit: fix NULL check in spacemit_pin_set_config\n\nspacemit_pin_set_config() looks up the per-pin descriptor with\nspacemit_get_pin() then checks the wrong variable for failure:\n\n\tconst struct spacemit_pin *spin = spacemit_get_pin(pctrl, pin);\n\t...\n\tif (!pin)\n\t\treturn -EINVAL;\n\n\treg = spacemit_pin_to_reg(pctrl, spin-\u003epin);\n\npin is an unsigned int pin id, where 0 (GPIO_0 / gmac0_rxdv on K3) is a\nvalid pin, so rejecting it here drops the PAD config write for the first\npin of every group. On K3 Pico-ITX the GMAC RGMII group lists pin 0 as\nits first entry, so its drive-strength / bias configuration was silently\nignored.\n\nThe intended guard is against spacemit_get_pin() returning NULL when the\npin id isn't in the SoC's pin table. Check spin instead, which both\nrestores PAD setup for pin 0 and prevents a NULL deref on spin-\u003epin.",
  "id": "CVE-2026-80648",
  "modified": "2026-08-30T03:30:45.561144866Z",
  "published": "2026-08-28T06:48:57.479Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09c816e5c4d3a8d6d6e4b7537433e5e98505d934"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a551951ebeb5b3f05bdb04a73d4593869c984c4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d3b53f0eda26e442ff97016ad4a0724db8fd3781"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80648.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80648"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "pinctrl: spacemit: fix NULL check in spacemit_pin_set_config"
}