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CVE-2024-27023 (GCVE-0-2024-27023)

Vulnerability from cvelistv5 – Published: 2024-05-01 12:49 – Updated: 2026-05-11 20:08
VLAI
Title
md: Fix missing release of 'active_io' for flush
Summary
In the Linux kernel, the following vulnerability has been resolved: md: Fix missing release of 'active_io' for flush submit_flushes atomic_set(&mddev->flush_pending, 1); rdev_for_each_rcu(rdev, mddev) atomic_inc(&mddev->flush_pending); bi->bi_end_io = md_end_flush submit_bio(bi); /* flush io is done first */ md_end_flush if (atomic_dec_and_test(&mddev->flush_pending)) percpu_ref_put(&mddev->active_io) -> active_io is not released if (atomic_dec_and_test(&mddev->flush_pending)) -> missing release of active_io For consequence, mddev_suspend() will wait for 'active_io' to be zero forever. Fix this problem by releasing 'active_io' in submit_flushes() if 'flush_pending' is decreased to zero.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:44 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f9f2d957a8ea93c73182aebf7de30935a58c027d , < 6b2ff10390b19a2364af622b6666b690443f9f3f (git)
Affected: 530cec617f5a8ba6f26bcbf0d64d75c951d17730 , < 02dad157ba11064d073f5499dc33552b227d5d3a (git)
Affected: c4c2345214b66e2505a26fd2ea58839dd7a1d48d , < 11f81438927f84edfaaeb5d5f10856c3a1c1fc82 (git)
Affected: fa2bbff7b0b4e211fec5e5686ef96350690597b5 , < 855678ed8534518e2b428bcbcec695de9ba248e8 (git)
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Linux Linux Affected: 6.1.75 , < 6.1.80 (semver)
Affected: 6.6.14 , < 6.6.19 (semver)
Affected: 6.7.2 , < 6.7.7 (semver)
guessed Create a notification for this product.
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      "status": "final",
      "title": "kernel: md: Fix missing release of \u0026#39;active_io\u0026#39; for flush",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-27023.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T01:57:12Z",
      "cve": "CVE-2024-27023",
      "id": "CVE-2024-27023",
      "initial_release_date": "2024-05-03T02:09:38Z",
      "product_status:known_affected": "394",
      "product_status:known_not_affected": "385",
      "product_status:recommended": "209",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-27023",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-27023.json",
      "version": "57"
    },
    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2024-27023\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T09:02:30.069Z\", \"dateReserved\": \"2024-02-19T14:20:24.210Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-01T12:49:21.063Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.