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GHSA-CV9G-V92M-34RJ

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32

Details

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

regcache: Do not overwrite error code when finalizing cache after error

During regcache initialization, if an error occurs in the cache_ops->populate callback, and if cache operations include an exit callback, the error code from populate() is overwritten with the return value from exit(). This hides the error condition from the caller of regcache_init(), and can cause NULL pointer dereferences when the regcache is later accessed.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72453"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:19Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nregcache: Do not overwrite error code when finalizing cache after error\n\nDuring regcache initialization, if an error occurs in the\ncache_ops-\u003epopulate callback, and if cache operations include an exit\ncallback, the error code from populate() is overwritten with the return\nvalue from exit(). This hides the error condition from the caller of\nregcache_init(), and can cause NULL pointer dereferences when the regcache\nis later accessed.",
  "id": "GHSA-cv9g-v92m-34rj",
  "modified": "2026-08-15T06:32:25Z",
  "published": "2026-08-15T06:32:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72453"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9108f7fa493b4c88cbc09503e0c164244456bad5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f171aa115ec76be02c76c5765cd2c865279e34a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-72453 (GCVE-0-2026-72453)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:57 – Updated: 2026-08-17 05:14

Title

regcache: Do not overwrite error code when finalizing cache after error

Summary

In the Linux kernel, the following vulnerability has been resolved: regcache: Do not overwrite error code when finalizing cache after error During regcache initialization, if an error occurs in the cache_ops->populate callback, and if cache operations include an exit callback, the error code from populate() is overwritten with the return value from exit(). This hides the error condition from the caller of regcache_init(), and can cause NULL pointer dereferences when the regcache is later accessed.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6992 records in the last 180 days details

References

2 references

URL	Tags
https://git.kernel.org/stable/c/9f171aa115ec76be0…
https://git.kernel.org/stable/c/9108f7fa493b4c88c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 94a3a95f03154d8d4c6206950a7f6ef9a30baec6 , < 9f171aa115ec76be02c76c5765cd2c865279e34a (git) Affected: 94a3a95f03154d8d4c6206950a7f6ef9a30baec6 , < 9108f7fa493b4c88cbc09503e0c164244456bad5 (git)
Linux	Linux	Affected: 6.19 Unaffected: 0 , < 6.19 (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/base/regmap/regcache.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9f171aa115ec76be02c76c5765cd2c865279e34a",
              "status": "affected",
              "version": "94a3a95f03154d8d4c6206950a7f6ef9a30baec6",
              "versionType": "git"
            },
            {
              "lessThan": "9108f7fa493b4c88cbc09503e0c164244456bad5",
              "status": "affected",
              "version": "94a3a95f03154d8d4c6206950a7f6ef9a30baec6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/base/regmap/regcache.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregcache: Do not overwrite error code when finalizing cache after error\n\nDuring regcache initialization, if an error occurs in the\ncache_ops-\u003epopulate callback, and if cache operations include an exit\ncallback, the error code from populate() is overwritten with the return\nvalue from exit(). This hides the error condition from the caller of\nregcache_init(), and can cause NULL pointer dereferences when the regcache\nis later accessed."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:14:57.028Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9f171aa115ec76be02c76c5765cd2c865279e34a"
        },
        {
          "url": "https://git.kernel.org/stable/c/9108f7fa493b4c88cbc09503e0c164244456bad5"
        }
      ],
      "title": "regcache: Do not overwrite error code when finalizing cache after error",
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        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72453",
    "datePublished": "2026-08-15T05:57:00.921Z",
    "dateReserved": "2026-08-09T03:40:39.932Z",
    "dateUpdated": "2026-08-17T05:14:57.028Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

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