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CVE-2026-80648 (GCVE-0-2026-80648)

Vulnerability from cvelistv5 – Published: 2026-08-28 06:48 – Updated: 2026-08-28 06:48
VLAI
Title
pinctrl: spacemit: fix NULL check in spacemit_pin_set_config
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a83c29e1d145cca5240952100acd1cd60f25fb5f , < 7a551951ebeb5b3f05bdb04a73d4593869c984c4 (git)
Affected: a83c29e1d145cca5240952100acd1cd60f25fb5f , < d3b53f0eda26e442ff97016ad4a0724db8fd3781 (git)
Affected: a83c29e1d145cca5240952100acd1cd60f25fb5f , < 09c816e5c4d3a8d6d6e4b7537433e5e98505d934 (git)
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Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pinctrl/spacemit/pinctrl-k1.c"
          ],
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          "vendor": "Linux",
          "versions": [
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          "vendor": "Linux",
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              "versionType": "semver"
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.13",
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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\u0027t in the SoC\u0027s pin table. Check spin instead, which both\nrestores PAD setup for pin 0 and prevents a NULL deref on spin-\u003epin."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T06:48:57.479Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7a551951ebeb5b3f05bdb04a73d4593869c984c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/d3b53f0eda26e442ff97016ad4a0724db8fd3781"
        },
        {
          "url": "https://git.kernel.org/stable/c/09c816e5c4d3a8d6d6e4b7537433e5e98505d934"
        }
      ],
      "title": "pinctrl: spacemit: fix NULL check in spacemit_pin_set_config",
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80648",
    "datePublished": "2026-08-28T06:48:57.479Z",
    "dateReserved": "2026-08-26T14:34:25.779Z",
    "dateUpdated": "2026-08-28T06:48:57.479Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-80648",
      "date": "2026-09-16",
      "epss": "0.00166",
      "percentile": "0.06219"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-80648\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-08-28T08:16:49.800\",\"lastModified\":\"2026-08-28T08:16:49.800\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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\u0027t in the SoC\u0027s pin table. Check spin instead, which both\\nrestores PAD setup for pin 0 and prevents a NULL deref on spin-\u003epin.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/pinctrl/spacemit/pinctrl-k1.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"a83c29e1d145cca5240952100acd1cd60f25fb5f\",\"lessThan\":\"7a551951ebeb5b3f05bdb04a73d4593869c984c4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a83c29e1d145cca5240952100acd1cd60f25fb5f\",\"lessThan\":\"d3b53f0eda26e442ff97016ad4a0724db8fd3781\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a83c29e1d145cca5240952100acd1cd60f25fb5f\",\"lessThan\":\"09c816e5c4d3a8d6d6e4b7537433e5e98505d934\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/pinctrl/spacemit/pinctrl-k1.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.13\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.13\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.40\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.5\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/09c816e5c4d3a8d6d6e4b7537433e5e98505d934\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7a551951ebeb5b3f05bdb04a73d4593869c984c4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d3b53f0eda26e442ff97016ad4a0724db8fd3781\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-31T09:58:03+00:00",
      "cve": "CVE-2026-80648",
      "id": "CVE-2026-80648",
      "initial_release_date": "2026-08-28T00:00:00+00:00",
      "product_status:known_affected": "76",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: pinctrl: spacemit: fix NULL check in spacemit_pin_set_config",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80648.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T13:27:41Z",
      "cve": "CVE-2026-80648",
      "id": "CVE-2026-80648",
      "initial_release_date": "2026-08-28T16:35:14Z",
      "product_status:known_not_affected": "353",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-80648",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-80648.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.