CVE-2026-43248 (GCVE-0-2026-43248)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-05-06 11:28
VLAI?
Title
vhost: move vdpa group bound check to vhost_vdpa
Summary
In the Linux kernel, the following vulnerability has been resolved: vhost: move vdpa group bound check to vhost_vdpa Remove duplication by consolidating these here. This reduces the posibility of a parent driver missing them. While we're at it, fix a bug in vdpa_sim where a valid ASID can be assigned to a group equal to ngroups, causing an out of bound write.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: bda324fd037a6b0d44da5699574ce741ca161bc4 , < ddb57354634b6ba851b79da45f1de42c646f27d0 (git)
Affected: bda324fd037a6b0d44da5699574ce741ca161bc4 , < 7441d35d14d9a3d66d925d90cb73c75394e6d454 (git)
Affected: bda324fd037a6b0d44da5699574ce741ca161bc4 , < 406db68f9cb976a8ddfafd631197264f2307e9c9 (git)
Affected: bda324fd037a6b0d44da5699574ce741ca161bc4 , < cd025c1e876b4e262e71398236a1550486a73ede (git)
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    Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/vdpa/mlx5/net/mlx5_vnet.c",
            "drivers/vdpa/vdpa_sim/vdpa_sim.c",
            "drivers/vhost/vdpa.c"
          ],
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          ],
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          "vendor": "Linux",
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      "providerMetadata": {
        "dateUpdated": "2026-05-06T11:28:39.578Z",
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    "cveId": "CVE-2026-43248",
    "datePublished": "2026-05-06T11:28:39.578Z",
    "dateReserved": "2026-05-01T14:12:55.996Z",
    "dateUpdated": "2026-05-06T11:28:39.578Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • 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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