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CVE-2026-53272 (GCVE-0-2026-53272)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:39 – Updated: 2026-06-25 08:39
VLAI
Title
erofs: fix use-after-free on sbi->sync_decompress
Summary
In the Linux kernel, the following vulnerability has been resolved: erofs: fix use-after-free on sbi->sync_decompress z_erofs_decompress_kickoff() can race with filesystem unmount, causing a use-after-free on sbi->sync_decompress. When I/O completes, z_erofs_endio() calls z_erofs_decompress_kickoff() to queue z_erofs_decompressqueue_work() asynchronously. Then, after all folios are unlocked, unmount workflow can proceed and sbi will be freed before accessing to sbi->sync_decompress. Thread (unmount) I/O completion kworker queue_work z_erofs_decompressqueue_work (all folios are unlocked) cleanup_mnt .. erofs_kill_sb erofs_sb_free kfree(sbi) access sbi->sync_decompress // UAF!!
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 40452ffca3c1a0f2994e826f9fa213b107f1a2d4 , < 86ab00cf81d44b675bb23db62b88fd76c8ac8cea (git)
Affected: 40452ffca3c1a0f2994e826f9fa213b107f1a2d4 , < 00bf6868df65fa95b3854996246d15759fdc7070 (git)
Affected: 40452ffca3c1a0f2994e826f9fa213b107f1a2d4 , < 95caf60da33d87ed26c28993620f0d92487b0296 (git)
Affected: 40452ffca3c1a0f2994e826f9fa213b107f1a2d4 , < 1aee05e814d292064bf5fa15733741040cdc48ba (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 6.12.94 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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{
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          "programFiles": [
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    "dateReserved": "2026-06-09T07:44:35.395Z",
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      "cve": "CVE-2026-53272",
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      "title": "kernel: erofs: fix use-after-free on sbi-\u003esync_decompress",
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      "cve": "CVE-2026-53272",
      "id": "CVE-2026-53272",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-53272",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-53272.json",
      "version": "11"
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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.
  • 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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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.