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

Vulnerability from cvelistv5 – Published: 2026-08-15 05:57 – Updated: 2026-08-17 05:14
VLAI
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
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 94a3a95f03154d8d4c6206950a7f6ef9a30baec6 , < 9f171aa115ec76be02c76c5765cd2c865279e34a (git)
Affected: 94a3a95f03154d8d4c6206950a7f6ef9a30baec6 , < 9108f7fa493b4c88cbc09503e0c164244456bad5 (git)
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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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          "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"
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        {
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    "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"
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    "redhat_vex": {
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      "current_release_date": "2026-08-19T17:53:50+00:00",
      "cve": "CVE-2026-72453",
      "id": "CVE-2026-72453",
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      "product_status:known_affected": "184",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: regcache: Do not overwrite error code when finalizing cache after error",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72453.json",
      "version": "3"
    }
  }
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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