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CVE-2026-46080 (GCVE-0-2026-46080)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:58 – Updated: 2026-06-14 17:52
VLAI
Title
ocfs2: split transactions in dio completion to avoid credit exhaustion
Summary
In the Linux kernel, the following vulnerability has been resolved: ocfs2: split transactions in dio completion to avoid credit exhaustion During ocfs2 dio operations, JBD2 may report warnings via following call trace: ocfs2_dio_end_io_write ocfs2_mark_extent_written ocfs2_change_extent_flag ocfs2_split_extent ocfs2_try_to_merge_extent ocfs2_extend_rotate_transaction ocfs2_extend_trans jbd2__journal_restart start_this_handle output: JBD2: kworker/6:2 wants too many credits credits:5450 rsv_credits:0 max:5449 To prevent exceeding the credits limit, modify ocfs2_dio_end_io_write() to handle extents in a batch of transaction. Additionally, relocate ocfs2_del_inode_from_orphan(). The orphan inode should only be removed from the orphan list after the extent tree update is complete. This ensures that if a crash occurs in the middle of extent tree updates, we won't leave stale blocks beyond EOF. This patch also changes the logic for updating the inode size and removing orphan, making it similar to ext4_dio_write_end_io(). Both operations are performed only when everything looks good. Finally, thanks to Jans and Joseph for providing the bug fix prototype and suggestions.
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: c15471f79506830f80eca0e7fe09b8213953ab5f , < 97c03c0e9f73a5049794b3c69ee60fb5e8b0ebd8 (git)
Affected: c15471f79506830f80eca0e7fe09b8213953ab5f , < 1e99bb19994246514d63e656492904176f9d5edd (git)
Affected: c15471f79506830f80eca0e7fe09b8213953ab5f , < 91e05ac2336d00d5b99fc774be4bd50039084796 (git)
Affected: c15471f79506830f80eca0e7fe09b8213953ab5f , < 886f97fa59d0bbfa9859fb1a66dd9e014b522d89 (git)
Affected: c15471f79506830f80eca0e7fe09b8213953ab5f , < ea5bb1d20da756e4f41a48dad42b2e7d6e73f71e (git)
Affected: c15471f79506830f80eca0e7fe09b8213953ab5f , < 3c636a3edca9c3f180b3079f94fe7e115730d9c6 (git)
Affected: c15471f79506830f80eca0e7fe09b8213953ab5f , < 069c3fb310e9336cf48cfdf8748a32c29fd0193d (git)
Affected: c15471f79506830f80eca0e7fe09b8213953ab5f , < d647c5b2fbf81560818dacade360abc8c00a9665 (git)
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Linux Linux Affected: 4.6
Unaffected: 0 , < 4.6 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.140 , ≤ 6.6.* (semver)
Unaffected: 6.12.86 , ≤ 6.12.* (semver)
Unaffected: 6.18.27 , ≤ 6.18.* (semver)
Unaffected: 7.0.4 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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The orphan inode\\nshould only be removed from the orphan list after the extent tree update\\nis complete.  This ensures that if a crash occurs in the middle of extent\\ntree updates, we won\u0027t leave stale blocks beyond EOF.\\n\\nThis patch also changes the logic for updating the inode size and removing\\norphan, making it similar to ext4_dio_write_end_io().  Both operations are\\nperformed only when everything looks good.\\n\\nFinally, thanks to Jans and Joseph for providing the bug fix prototype 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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T07:40:46+00:00",
      "cve": "CVE-2026-46080",
      "id": "CVE-2026-46080",
      "initial_release_date": "2026-05-27T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ocfs2: split transactions in dio completion to avoid credit exhaustion",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46080.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-16T00:12:57Z",
      "cve": "CVE-2026-46080",
      "id": "CVE-2026-46080",
      "initial_release_date": "2026-05-28T03:53:02Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "505",
      "product_status:known_not_affected": "62",
      "product_status:recommended": "469",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-46080",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46080.json",
      "version": "15"
    }
  }
}



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Taxonomy of the tags.





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.


Related by attack behaviour

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.