Vulnerability-Lookup

FKIE_CVE-2026-23260

Vulnerability from fkie_nvd - Published: 2026-03-18 18:16 - Updated: 2026-05-29 18:53

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: regmap: maple: free entry on mas_store_gfp() failure regcache_maple_write() allocates a new block ('entry') to merge adjacent ranges and then stores it with mas_store_gfp(). When mas_store_gfp() fails, the new 'entry' remains allocated and is never freed, leaking memory. Free 'entry' on the failure path; on success continue freeing the replaced neighbor blocks ('lower', 'upper').

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/811b45e2d795d955bb7fd9c816b40036f4fde350	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d61171cf097156030142643942c217759a9cc806	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f08f2d2907675926ac5657b25f86d921f269602a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19

JSON

To clipboard

{
  "configurations": [
    {
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          "cpeMatch": [
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregmap: maple: free entry on mas_store_gfp() failure\n\nregcache_maple_write() allocates a new block (\u0027entry\u0027) to merge\nadjacent ranges and then stores it with mas_store_gfp().\nWhen mas_store_gfp() fails, the new \u0027entry\u0027 remains allocated and\nis never freed, leaking memory.\n\nFree \u0027entry\u0027 on the failure path; on success continue freeing the\nreplaced neighbor blocks (\u0027lower\u0027, \u0027upper\u0027)."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nregmap: maple: liberar entrada en caso de fallo de mas_store_gfp()\n\nregcache_maple_write() asigna un nuevo bloque (\u0027entrada\u0027) para fusionar rangos adyacentes y luego lo almacena con mas_store_gfp().\nCuando mas_store_gfp() falla, la nueva \u0027entrada\u0027 permanece asignada y nunca es liberada, provocando una fuga de memoria.\n\nLiberar \u0027entrada\u0027 en la ruta de fallo; en caso de \u00e9xito, continuar liberando los bloques vecinos reemplazados (\u0027inferior\u0027, \u0027superior\u0027)."
    }
  ],
  "id": "CVE-2026-23260",
  "lastModified": "2026-05-29T18:53:10.737",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "vulnStatus": "Analyzed",
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          "lang": "en",
          "value": "CWE-401"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-23260 (GCVE-0-2026-23260)

Vulnerability from cvelistv5 – Published: 2026-03-18 17:41 – Updated: 2026-05-11 22:03

Title

regmap: maple: free entry on mas_store_gfp() failure

Summary

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/d61171cf097156030…
https://git.kernel.org/stable/c/811b45e2d795d955b…
https://git.kernel.org/stable/c/f08f2d2907675926a…
https://git.kernel.org/stable/c/f3f380ce6b3d5c980…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f033c26de5a5734625d2dd1dc196745fae186f1b , < d61171cf097156030142643942c217759a9cc806 (git) Affected: f033c26de5a5734625d2dd1dc196745fae186f1b , < 811b45e2d795d955bb7fd9c816b40036f4fde350 (git) Affected: f033c26de5a5734625d2dd1dc196745fae186f1b , < f08f2d2907675926ac5657b25f86d921f269602a (git) Affected: f033c26de5a5734625d2dd1dc196745fae186f1b , < f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8 (git)
Linux	Linux	Affected: 6.4 Unaffected: 0 , < 6.4 (semver) Unaffected: 6.6.124 , ≤ 6.6.* (semver) Unaffected: 6.12.70 , ≤ 6.12.* (semver) Unaffected: 6.18.10 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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            "drivers/base/regmap/regcache-maple.c"
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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.

Action not permitted

FKIE_CVE-2026-23260

CVE-2026-23260 (GCVE-0-2026-23260)

Tags

Sightings

Nomenclature