CVE-2026-53021 (GCVE-0-2026-53021)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:29 – Updated: 2026-06-24 16:29
VLAI
Title
scsi: target: core: Fix integer overflow in UNMAP bounds check
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Fix integer overflow in UNMAP bounds check sbc_execute_unmap() checks LBA + range does not exceed the device capacity, but does not guard against LBA + range wrapping around on 64-bit overflow. Add an overflow check matching the pattern already used for WRITE_SAME in the same file.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 86d7182985d25900929adce14fffd729cc8c6fb8 , < c08ab702c4699c6efb9d60bdb15b73e7a627ee7e (git)
Affected: 86d7182985d25900929adce14fffd729cc8c6fb8 , < 2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd (git)
Affected: 86d7182985d25900929adce14fffd729cc8c6fb8 , < 5efc3ef4758f8d98c257419fa21daca3227de61a (git)
Affected: 86d7182985d25900929adce14fffd729cc8c6fb8 , < d7aef29573c7c5cdb2dfad939253287a6329c2a4 (git)
Affected: 86d7182985d25900929adce14fffd729cc8c6fb8 , < 3facdecc3fcf115cc4f9b3d8f118d6705e2456a8 (git)
Affected: 86d7182985d25900929adce14fffd729cc8c6fb8 , < 51075df70c46e60a9773f2dcd28299e40dac36fb (git)
Affected: 86d7182985d25900929adce14fffd729cc8c6fb8 , < 02115986d027ade793e7f6be87e91d6a796d0aa3 (git)
Affected: 86d7182985d25900929adce14fffd729cc8c6fb8 , < 2bf2d65f76697820dbc4227d13866293576dd90a (git)
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Linux Linux Affected: 3.10
Unaffected: 0 , < 3.10 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.141 , ≤ 6.6.* (semver)
Unaffected: 6.12.91 , ≤ 6.12.* (semver)
Unaffected: 6.18.33 , ≤ 6.18.* (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: core: Fix integer overflow in UNMAP bounds check\n\nsbc_execute_unmap() checks LBA + range does not exceed the device capacity,\nbut does not guard against LBA + range wrapping around on 64-bit overflow.\n\nAdd an overflow check matching the pattern already used for WRITE_SAME in\nthe same file."
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      "providerMetadata": {
        "dateUpdated": "2026-06-24T16:29:30.671Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "cveId": "CVE-2026-53021",
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    "dateReserved": "2026-06-09T07:44:35.379Z",
    "dateUpdated": "2026-06-24T16:29:30.671Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-07-02",
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      "percentile": "0.07383"
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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

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.