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GHSA-9PCH-737P-3QC4

Vulnerability from github – Published: 2026-07-24 18:31 – Updated: 2026-07-24 18:31

Details

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

regulator: tps65219: fix irq_data.rdev not being assigned

Commit 64a6b577490c ("regulator: tps65219: Remove debugging helper function") removed the tps65219_get_rdev_by_name() helper along with the irq_data.rdev assignment that depended on it. This left irq_data.rdev uninitialized for all IRQs, causing undefined behavior when regulator_notifier_call_chain() is called from the IRQ handler:

Internal error: Oops: 0000000096000004 pc : regulator_notifier_call_chain lr : tps65219_regulator_irq_handler Call trace: regulator_notifier_call_chain tps65219_regulator_irq_handler handle_nested_irq regmap_irq_thread irq_thread_fn irq_thread kthread ret_from_fork

Instead of restoring a dedicated lookup array, restructure the probe function to combine regulator registration with IRQ registration in the same loop. This way the rdev returned by devm_regulator_register() is naturally available for assigning to irq_data.rdev without any auxiliary data structure.

Non-regulator IRQs (SENSOR, TIMEOUT) that don't correspond to any registered regulator are registered with rdev=NULL, and the IRQ handler is protected with a NULL check to avoid crashing.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-64230"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-24T16:16:52Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: tps65219: fix irq_data.rdev not being assigned\n\nCommit 64a6b577490c (\"regulator: tps65219: Remove debugging helper\nfunction\") removed the tps65219_get_rdev_by_name() helper along with\nthe irq_data.rdev assignment that depended on it. This left\nirq_data.rdev uninitialized for all IRQs, causing undefined behavior\nwhen regulator_notifier_call_chain() is called from the IRQ handler:\n\n  Internal error: Oops: 0000000096000004\n  pc : regulator_notifier_call_chain\n  lr : tps65219_regulator_irq_handler\n  Call trace:\n   regulator_notifier_call_chain\n   tps65219_regulator_irq_handler\n   handle_nested_irq\n   regmap_irq_thread\n   irq_thread_fn\n   irq_thread\n   kthread\n   ret_from_fork\n\nInstead of restoring a dedicated lookup array, restructure the probe\nfunction to combine regulator registration with IRQ registration in\nthe same loop. This way the rdev returned by devm_regulator_register()\nis naturally available for assigning to irq_data.rdev without any\nauxiliary data structure.\n\nNon-regulator IRQs (SENSOR, TIMEOUT) that don\u0027t correspond to any\nregistered regulator are registered with rdev=NULL, and the IRQ handler\nis protected with a NULL check to avoid crashing.",
  "id": "GHSA-9pch-737p-3qc4",
  "modified": "2026-07-24T18:31:28Z",
  "published": "2026-07-24T18:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64230"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6827647fd2dcf4e7f355478a42e82f51e0b5344c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b986f88b22a5374191c195c073350bbeb1bb6518"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9b2d3b703d13df50c630997dfdc25648e96db0d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-64230 (GCVE-0-2026-64230)

Vulnerability from cvelistv5 – Published: 2026-07-24 15:23 – Updated: 2026-07-24 15:23

Title

regulator: tps65219: fix irq_data.rdev not being assigned

Summary

In the Linux kernel, the following vulnerability has been resolved: regulator: tps65219: fix irq_data.rdev not being assigned Commit 64a6b577490c ("regulator: tps65219: Remove debugging helper function") removed the tps65219_get_rdev_by_name() helper along with the irq_data.rdev assignment that depended on it. This left irq_data.rdev uninitialized for all IRQs, causing undefined behavior when regulator_notifier_call_chain() is called from the IRQ handler: Internal error: Oops: 0000000096000004 pc : regulator_notifier_call_chain lr : tps65219_regulator_irq_handler Call trace: regulator_notifier_call_chain tps65219_regulator_irq_handler handle_nested_irq regmap_irq_thread irq_thread_fn irq_thread kthread ret_from_fork Instead of restoring a dedicated lookup array, restructure the probe function to combine regulator registration with IRQ registration in the same loop. This way the rdev returned by devm_regulator_register() is naturally available for assigning to irq_data.rdev without any auxiliary data structure. Non-regulator IRQs (SENSOR, TIMEOUT) that don't correspond to any registered regulator are registered with rdev=NULL, and the IRQ handler is protected with a NULL check to avoid crashing.

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/6827647fd2dcf4e7f…
https://git.kernel.org/stable/c/b986f88b22a537419…
https://git.kernel.org/stable/c/f9b2d3b703d13df50…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 64a6b577490c1c71f1a3bbdb3844717815214621 , < 6827647fd2dcf4e7f355478a42e82f51e0b5344c (git) Affected: 64a6b577490c1c71f1a3bbdb3844717815214621 , < b986f88b22a5374191c195c073350bbeb1bb6518 (git) Affected: 64a6b577490c1c71f1a3bbdb3844717815214621 , < f9b2d3b703d13df50c630997dfdc25648e96db0d (git)
Linux	Linux	Affected: 6.14 Unaffected: 0 , < 6.14 (semver) Unaffected: 6.18.34 , ≤ 6.18.* (semver) Unaffected: 7.0.11 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/regulator/tps65219-regulator.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6827647fd2dcf4e7f355478a42e82f51e0b5344c",
              "status": "affected",
              "version": "64a6b577490c1c71f1a3bbdb3844717815214621",
              "versionType": "git"
            },
            {
              "lessThan": "b986f88b22a5374191c195c073350bbeb1bb6518",
              "status": "affected",
              "version": "64a6b577490c1c71f1a3bbdb3844717815214621",
              "versionType": "git"
            },
            {
              "lessThan": "f9b2d3b703d13df50c630997dfdc25648e96db0d",
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              "version": "64a6b577490c1c71f1a3bbdb3844717815214621",
              "versionType": "git"
            }
          ]
        },
        {
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          "programFiles": [
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "lessThan": "6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.14",
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                },
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                {
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                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: tps65219: fix irq_data.rdev not being assigned\n\nCommit 64a6b577490c (\"regulator: tps65219: Remove debugging helper\nfunction\") removed the tps65219_get_rdev_by_name() helper along with\nthe irq_data.rdev assignment that depended on it. This left\nirq_data.rdev uninitialized for all IRQs, causing undefined behavior\nwhen regulator_notifier_call_chain() is called from the IRQ handler:\n\n  Internal error: Oops: 0000000096000004\n  pc : regulator_notifier_call_chain\n  lr : tps65219_regulator_irq_handler\n  Call trace:\n   regulator_notifier_call_chain\n   tps65219_regulator_irq_handler\n   handle_nested_irq\n   regmap_irq_thread\n   irq_thread_fn\n   irq_thread\n   kthread\n   ret_from_fork\n\nInstead of restoring a dedicated lookup array, restructure the probe\nfunction to combine regulator registration with IRQ registration in\nthe same loop. This way the rdev returned by devm_regulator_register()\nis naturally available for assigning to irq_data.rdev without any\nauxiliary data structure.\n\nNon-regulator IRQs (SENSOR, TIMEOUT) that don\u0027t correspond to any\nregistered regulator are registered with rdev=NULL, and the IRQ handler\nis protected with a NULL check to avoid crashing."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-24T15:23:12.616Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/f9b2d3b703d13df50c630997dfdc25648e96db0d"
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      ],
      "title": "regulator: tps65219: fix irq_data.rdev not being assigned",
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    "cveId": "CVE-2026-64230",
    "datePublished": "2026-07-24T15:23:12.616Z",
    "dateReserved": "2026-07-19T15:36:31.771Z",
    "dateUpdated": "2026-07-24T15:23:12.616Z",
    "state": "PUBLISHED"
  },
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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.

Action not permitted

GHSA-9PCH-737P-3QC4

CVE-2026-64230 (GCVE-0-2026-64230)

Tags

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Nomenclature