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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
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
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)
guessed Create a notification for this product.
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)
guessed Create a notification for this product.
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    "redhat_vex": {
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      "cve": "CVE-2026-53021",
      "id": "CVE-2026-53021",
      "initial_release_date": "2026-06-24T00:00:00+00:00",
      "product_status:known_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: scsi: target: core: Fix integer overflow in UNMAP bounds check",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53021.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-10T16:59:22Z",
      "cve": "CVE-2026-53021",
      "id": "CVE-2026-53021",
      "initial_release_date": "2026-06-26T02:13:19Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "645",
      "product_status:known_not_affected": "4",
      "product_status:recommended": "273",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-53021",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-53021.json",
      "version": "15"
    }
  }
}



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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.
  • 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.


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