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CVE-2023-54021 (GCVE-0-2023-54021)

Vulnerability from cvelistv5 – Published: 2025-12-24 10:55 – Updated: 2026-05-11 19:53
VLAI
Title
ext4: set goal start correctly in ext4_mb_normalize_request
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: set goal start correctly in ext4_mb_normalize_request We need to set ac_g_ex to notify the goal start used in ext4_mb_find_by_goal. Set ac_g_ex instead of ac_f_ex in ext4_mb_normalize_request. Besides we should assure goal start is in range [first_data_block, blocks_count) as ext4_mb_initialize_context does. [ Added a check to make sure size is less than ar->pright; otherwise we could end up passing an underflowed value of ar->pright - size to ext4_get_group_no_and_offset(), which will trigger a BUG_ON later on. - TYT ]
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c9de560ded61faa5b754137b7753da252391c55a , < 2479bb6cbdb4d56b807bbe5229e3e26a6f1f4530 (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < 390eee955d4de4662db5e3e9e9a9eae020432cb7 (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < cee78217a7ae72d11c2e21e1a5263b8044489823 (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < 3ca3005b502ca8ea87d6a344323b179b48c4e4a3 (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < bc4a3e1d07a86ae5845321d371190244acacb2f2 (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < c6bee8970075b256fc1b07bf4873049219380818 (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < abb330ffaa3a0ae7ce632e28c9260b461c01f19f (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < b07ffe6927c75d99af534d685282ea188d9f71a6 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.25
Unaffected: 0 , < 2.6.25 (semver)
Unaffected: 4.14.316 , ≤ 4.14.* (semver)
Unaffected: 4.19.284 , ≤ 4.19.* (semver)
Unaffected: 5.4.244 , ≤ 5.4.* (semver)
Unaffected: 5.10.181 , ≤ 5.10.* (semver)
Unaffected: 5.15.113 , ≤ 5.15.* (semver)
Unaffected: 6.1.30 , ≤ 6.1.* (semver)
Unaffected: 6.3.4 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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    "dateReserved": "2025-12-24T10:53:46.179Z",
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:20:06+00:00",
      "cve": "CVE-2023-54021",
      "id": "CVE-2023-54021",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "279",
      "product_status:known_affected": "112",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ext4: set goal start correctly in ext4_mb_normalize_request",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54021.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:04:27Z",
      "cve": "CVE-2023-54021",
      "id": "CVE-2023-54021",
      "initial_release_date": "2025-12-25T00:57:30Z",
      "product_status:known_affected": "554",
      "product_status:known_not_affected": "172",
      "product_status:recommended": "262",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-54021",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-54021.json",
      "version": "24"
    }
  }
}



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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.

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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 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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