Vulnerability-Lookup

GHSA-V3GV-J32H-QW62

Vulnerability from github – Published: 2026-08-28 09:31 – Updated: 2026-08-28 09:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-80648"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-28T08:16:49Z",
    "severity": null
  },
  "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\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.",
  "id": "GHSA-v3gv-j32h-qw62",
  "modified": "2026-08-28T09:31:48Z",
  "published": "2026-08-28T09:31:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80648"
    },
    {
      "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-08-28 06:48 – Updated: 2026-08-28 06:48

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

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/7a551951ebeb5b3f0…
https://git.kernel.org/stable/c/d3b53f0eda26e442f…
https://git.kernel.org/stable/c/09c816e5c4d3a8d6d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a83c29e1d145cca5240952100acd1cd60f25fb5f , < 7a551951ebeb5b3f05bdb04a73d4593869c984c4 (git) Affected: a83c29e1d145cca5240952100acd1cd60f25fb5f , < d3b53f0eda26e442ff97016ad4a0724db8fd3781 (git) Affected: a83c29e1d145cca5240952100acd1cd60f25fb5f , < 09c816e5c4d3a8d6d6e4b7537433e5e98505d934 (git)
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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              "versionType": "git"
            },
            {
              "lessThan": "d3b53f0eda26e442ff97016ad4a0724db8fd3781",
              "status": "affected",
              "version": "a83c29e1d145cca5240952100acd1cd60f25fb5f",
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          "versions": [
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              "version": "6.13"
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              "versionType": "semver"
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      "cpeApplicability": [
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                  "vulnerable": true
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                {
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                }
              ],
              "negate": false,
              "operator": "OR"
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        }
      ],
      "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",
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          "url": "https://git.kernel.org/stable/c/09c816e5c4d3a8d6d6e4b7537433e5e98505d934"
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    "dateReserved": "2026-08-26T14:34:25.779Z",
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    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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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