Vulnerability-Lookup

GHSA-9QRW-29C6-R5GV

Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32

Details

In the Linux kernel, the following vulnerability has been resolved:

pinctrl: generic: free maps on pinctrl_generic_to_map() failure

pinctrl_generic_to_map() parses DT configuration and allocates pinctrl maps via pinctrl_utils_reserve_map().

If subsequent steps (such as pinctrl_utils_add_map_mux(), pinctrl_generic_add_group(), pinconf_generic_parse_dt_config(), or pinctrl_utils_add_map_configs()) return an error, maps may contain partially allocated map entries. Returning the error directly without freeing maps leaks the allocated mapping memory across all drivers that rely on pinctrl_generic_to_map().

Fix this by calling pinctrl_utils_free_map() and resetting maps, num_maps, and *num_reserved_maps in the error path of pinctrl_generic_to_map().

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{
  "affected": [],
  "aliases": [
    "CVE-2026-90340"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T17:17:32Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: generic: free maps on pinctrl_generic_to_map() failure\n\npinctrl_generic_to_map() parses DT configuration and allocates pinctrl\nmaps via pinctrl_utils_reserve_map().\n\nIf subsequent steps (such as pinctrl_utils_add_map_mux(),\npinctrl_generic_add_group(), pinconf_generic_parse_dt_config(), or\npinctrl_utils_add_map_configs()) return an error, *maps may contain\npartially allocated map entries. Returning the error directly without\nfreeing *maps leaks the allocated mapping memory across all drivers\nthat rely on pinctrl_generic_to_map().\n\nFix this by calling pinctrl_utils_free_map() and resetting *maps,\n*num_maps, and *num_reserved_maps in the error path of\npinctrl_generic_to_map().",
  "id": "GHSA-9qrw-29c6-r5gv",
  "modified": "2026-09-17T18:32:01Z",
  "published": "2026-09-17T18:32:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90340"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09f47abc95ee9e819e7e93cd68c1c23abe11c842"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/17007cd700601777d9ee203a13d97e64ece3a10f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-90340 (GCVE-0-2026-90340)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:08 – Updated: 2026-09-17 16:08

Title

pinctrl: generic: free maps on pinctrl_generic_to_map() failure

Summary

In the Linux kernel, the following vulnerability has been resolved: pinctrl: generic: free maps on pinctrl_generic_to_map() failure pinctrl_generic_to_map() parses DT configuration and allocates pinctrl maps via pinctrl_utils_reserve_map(). If subsequent steps (such as pinctrl_utils_add_map_mux(), pinctrl_generic_add_group(), pinconf_generic_parse_dt_config(), or pinctrl_utils_add_map_configs()) return an error, *maps may contain partially allocated map entries. Returning the error directly without freeing *maps leaks the allocated mapping memory across all drivers that rely on pinctrl_generic_to_map(). Fix this by calling pinctrl_utils_free_map() and resetting *maps, *num_maps, and *num_reserved_maps in the error path of pinctrl_generic_to_map().

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/09f47abc95ee9e819…
https://git.kernel.org/stable/c/17007cd700601777d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: aaaf31be04260316036f50a05b7d015c0d36b55a , < 09f47abc95ee9e819e7e93cd68c1c23abe11c842 (git) Affected: aaaf31be04260316036f50a05b7d015c0d36b55a , < 17007cd700601777d9ee203a13d97e64ece3a10f (git)
Linux	Linux	Affected: 7.2 Unaffected: 0 , < 7.2 (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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          "programFiles": [
            "drivers/pinctrl/pinctrl-generic.c"
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          "vendor": "Linux",
          "versions": [
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            },
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              "lessThanOrEqual": "*",
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              "versionType": "original_commit_for_fix"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: generic: free maps on pinctrl_generic_to_map() failure\n\npinctrl_generic_to_map() parses DT configuration and allocates pinctrl\nmaps via pinctrl_utils_reserve_map().\n\nIf subsequent steps (such as pinctrl_utils_add_map_mux(),\npinctrl_generic_add_group(), pinconf_generic_parse_dt_config(), or\npinctrl_utils_add_map_configs()) return an error, *maps may contain\npartially allocated map entries. Returning the error directly without\nfreeing *maps leaks the allocated mapping memory across all drivers\nthat rely on pinctrl_generic_to_map().\n\nFix this by calling pinctrl_utils_free_map() and resetting *maps,\n*num_maps, and *num_reserved_maps in the error path of\npinctrl_generic_to_map()."
        }
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      "providerMetadata": {
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    "datePublished": "2026-09-17T16:08:51.635Z",
    "dateReserved": "2026-09-11T19:38:34.804Z",
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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