CVE-2026-46080

Description

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.

Overview

State: PUBLISHED
Assigner (CNA): Linux
CVSS severity: high
CVSS score: 7.1 / 10
CVSS vector: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Effective score: 7.1 / 10 HIGH source: CNA overview
MSRC score: 7.1 / 10 HIGH MS rating: Moderate
CWE(s): —
Reserved: 2026-05-13
Published: 2026-05-27 12:58 UTC
Last updated: 2026-06-01 16:18 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/46xxx/CVE-2026-46080.json
Linked Threat: CVE-2026-46080 — CVE-2026-46080

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-05-27 14:17:29 UTC
NVD last modified: 2026-06-24 17:20:25 UTC
NVD CVSS v3.1: 5.5 / 10 MEDIUM source: nvd@nist.gov
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore: 1.8 / 10
Impact subscore: 3.6 / 10
EPSS score: 0.0014 (probability of exploitation in next 30 days)
EPSS percentile: 3.44% vs all CVEs — higher = more likely to be exploited, as of 2026-07-26

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-32463
Assigner: Linux
Published: May 27, 2026, 12:58:17 PM
Updated: Jun 14, 2026, 5:52:50 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.1400
Vendors: Linux
Products: Linux (patch: 6.1.175)

Linux (c15471f79506830f80eca0e7fe09b8213953ab5f <1e99bb19994246514d63e656492904176f9d5edd)

Linux (c15471f79506830f80eca0e7fe09b8213953ab5f <886f97fa59d0bbfa9859fb1a66dd9e014b522d89)

Linux (patch: 6.6.140)

Linux (c15471f79506830f80eca0e7fe09b8213953ab5f <ea5bb1d20da756e4f41a48dad42b2e7d6e73f71e)

Linux (c15471f79506830f80eca0e7fe09b8213953ab5f <97c03c0e9f73a5049794b3c69ee60fb5e8b0ebd8)

Linux (patch: 0)

Linux (c15471f79506830f80eca0e7fe09b8213953ab5f <d647c5b2fbf81560818dacade360abc8c00a9665)

Linux (patch: 7.1)

Linux (patch: 5.10.258)

Linux (patch: 6.18.27)

Linux (c15471f79506830f80eca0e7fe09b8213953ab5f <3c636a3edca9c3f180b3079f94fe7e115730d9c6)

Linux (c15471f79506830f80eca0e7fe09b8213953ab5f <91e05ac2336d00d5b99fc774be4bd50039084796)

Linux (4.6)

Linux (c15471f79506830f80eca0e7fe09b8213953ab5f <069c3fb310e9336cf48cfdf8748a32c29fd0193d)

Linux (patch: 5.15.209)

Linux (patch: 7.0.4)

Linux (patch: 6.12.86)
Aliases: GHSA-8mmh-cvrq-r3x6

ENISA description: 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.

EUVD references (8)

Microsoft Security Response Center MSRC

Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-08-12 01:09 UTC (source: CVRF).

MS severity: Moderate
MS CVSS base score: 7.1 / 10 (temporal 6.5)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U
Release: 2026-May

Microsoft remediations / KB articles (2)

CBL-Mariner Releases — Vendor Fix / Security Update (fixed build 6.6.141.1-1)
https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade — None Available / CBL-Mariner Releases

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`c15471f79506830f80eca0e7fe09b8213953ab5f` (affected), `c15471f79506830f80eca0e7fe09b8213953ab5f` (affected), `c15471f79506830f80eca0e7fe09b8213953ab5f` (affected), `c15471f79506830f80eca0e7fe09b8213953ab5f` (affected), `c15471f79506830f80eca0e7fe09b8213953ab5f` (affected), `c15471f79506830f80eca0e7fe09b8213953ab5f` (affected), `c15471f79506830f80eca0e7fe09b8213953ab5f` (affected), `c15471f79506830f80eca0e7fe09b8213953ab5f` (affected)	—
Linux	Linux	`4.6` (affected), `0` (unaffected), `5.10.258` (unaffected), `5.15.209` (unaffected), `6.1.175` (unaffected), `6.6.140` (unaffected), `6.12.86` (unaffected), `6.18.27` (unaffected), `7.0.4` (unaffected), `7.1-rc1` (unaffected)	—

Affected products — CPE 2.3 (1) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor references (8)

References embedded in the original CVE record by the assigning CNA.

Web references (13)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

MSRC update guide: CVE-2026-46080 msrc
None Available msrc
https://git.kernel.org/stable/c/3c636a3edca9c3f180b3079f94fe7e115730d9c6 tenable:git.kernel.org
https://git.kernel.org/stable/c/886f97fa59d0bbfa9859fb1a66dd9e014b522d89 tenable:git.kernel.org
https://git.kernel.org/stable/c/91e05ac2336d00d5b99fc774be4bd50039084796 tenable:git.kernel.org
https://git.kernel.org/stable/c/97c03c0e9f73a5049794b3c69ee60fb5e8b0ebd8 tenable:git.kernel.org
https://git.kernel.org/stable/c/d647c5b2fbf81560818dacade360abc8c00a9665 tenable:git.kernel.org
https://git.kernel.org/stable/c/ea5bb1d20da756e4f41a48dad42b2e7d6e73f71e tenable:git.kernel.org
https://nvd.nist.gov/vuln/detail/CVE-2026-46080 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-46080 tenable:www.cve.org
https://git.kernel.org/stable/c/069c3fb310e9336cf48cfdf8748a32c29fd0193d tenable:git.kernel.org
https://www.first.org/epss/ tenable:www.first.org
https://git.kernel.org/stable/c/1e99bb19994246514d63e656492904176f9d5edd tenable:git.kernel.org

NVD-tagged references (8)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://git.kernel.org/stable/c/069c3fb310e9336cf48cfdf8748a32c29fd0193d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/1e99bb19994246514d63e656492904176f9d5edd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/3c636a3edca9c3f180b3079f94fe7e115730d9c6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/886f97fa59d0bbfa9859fb1a66dd9e014b522d89 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/91e05ac2336d00d5b99fc774be4bd50039084796 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/97c03c0e9f73a5049794b3c69ee60fb5e8b0ebd8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/d647c5b2fbf81560818dacade360abc8c00a9665 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/ea5bb1d20da756e4f41a48dad42b2e7d6e73f71e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch

Remediations (16)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE-2026-41089 Netlogon RCE: Patch Domain Controllers

web:blog.gridinsoft.com

CVE - 2026 -41089 in Windows Netlogon is now reported as actively exploited. Patch domain controllers and check LSASS, Netlogon, and authentication logs.

2026-06-04 00:11 UTC
Microsoft and Adobe Patch Tuesday, May 2026 Security Update Review

web:blog.qualys.com

May 2026's Patch Tuesday arrives with Microsoft addressing a fresh set of vulnerabilities across its ecosystem, reinforcing the ongoing need for timely patching in an increasingly threat-heavy…

2026-06-04 00:11 UTC
Microsoft Patch Tuesday May 2026 - 120 Vulnerabilities Fixed, Including ...

web:cybersecuritynews.com

Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.

2026-06-04 00:11 UTC
Microsoft's May 2026 Patch Tuesday - Hive Pro

web:hivepro.com

Microsoft Patch Tuesday Overview and Vulnerability Distribution Microsoft's May 2026 Patch Tuesday delivers a comprehensive security update addressing 137 Microsoft vulnerabilities across the product ecosystem.

2026-06-04 00:11 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-06-04 00:11 UTC
Landing Page | ServiceNow Common Vulnerabilities & Exposures (CVE ...

web:support.servicenow.com

Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...

2026-06-04 00:11 UTC
April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike

web:www.crowdstrike.com

Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

2026-06-04 00:11 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-06-04 00:11 UTC
VirusTotal - Home

web:www.virustotal.com

VirusTotal is a platform for scanning files and URLs for viruses, malware, and other threats using multiple antivirus engines.

2026-06-04 00:11 UTC
Patch Tuesday June 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-06-04 00:11 UTC
Microsoft Confirms Defender RoguePlanet 0-Day Exploit and Working to ...

web:cybersecuritynews.com

Microsoft has officially acknowledged a critical zero-day vulnerability in Microsoft Defender, publicly dubbed "RoguePlanet," and confirmed it is actively developing a security patch to address the flaw.

2026-06-19 02:28 UTC
Nvd - Cve-2026-4680

web:nvd.nist.gov

Description Use after free in FedCM in Google Chrome prior to 146..7680.165 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

2026-06-19 02:28 UTC
2 New Microsoft Defender Zero-Days Exploited—Patch Now Rolling Out

web:tech.yahoo.com

Microsoft has confirmed an emergency security update as CISA warns that two new Defender zero-days are being exploited by attackers.

2026-06-19 02:28 UTC
Microsoft is working on a patch for 'YellowKey ... - Computerworld

web:www.computerworld.com

Microsoft says it is considering a patch for a zero-day vulnerability, dubbed YellowKey, that allows attackers with access to a Windows device to bypass Bitlocker encryption protection and read ...

2026-06-19 02:28 UTC
Microsoft working on a fix for RoguePlanet, a flaw that grants full PC ...

web:www.malwarebytes.com

Microsoft says it's working on a fix for an unpatched Defender vulnerability that can give attackers the highest level of access on Windows.

2026-06-19 02:28 UTC
Microsoft Technical Security Notifications

web:www.microsoft.com

Security Update Guide Notifications Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed.

2026-06-19 02:28 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-46080.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ocfs2/aops.c"
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            },
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            },
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            },
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            },
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            },
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              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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      ],
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: split transactions in dio completion to avoid credit exhaustion\n\nDuring ocfs2 dio operations, JBD2 may report warnings via following\ncall trace:\nocfs2_dio_end_io_write\n ocfs2_mark_extent_written\n  ocfs2_change_extent_flag\n   ocfs2_split_extent\n    ocfs2_try_to_merge_extent\n     ocfs2_extend_rotate_transaction\n      ocfs2_extend_trans\n       jbd2__journal_restart\n        start_this_handle\n         output: JBD2: kworker/6:2 wants too many credits credits:5450 rsv_credits:0 max:5449\n\nTo prevent exceeding the credits limit, modify ocfs2_dio_end_io_write() to\nhandle extents in a batch of transaction.\n\nAdditionally, relocate ocfs2_del_inode_from_orphan().  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't 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 and\nsuggestions."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-01T16:18:07.817Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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        },
        {
          "url": "https://git.kernel.org/stable/c/1e99bb19994246514d63e656492904176f9d5edd"
        },
        {
          "url": "https://git.kernel.org/stable/c/91e05ac2336d00d5b99fc774be4bd50039084796"
        },
        {
          "url": "https://git.kernel.org/stable/c/886f97fa59d0bbfa9859fb1a66dd9e014b522d89"
        },
        {
          "url": "https://git.kernel.org/stable/c/ea5bb1d20da756e4f41a48dad42b2e7d6e73f71e"
        },
        {
          "url": "https://git.kernel.org/stable/c/3c636a3edca9c3f180b3079f94fe7e115730d9c6"
        },
        {
          "url": "https://git.kernel.org/stable/c/069c3fb310e9336cf48cfdf8748a32c29fd0193d"
        },
        {
          "url": "https://git.kernel.org/stable/c/d647c5b2fbf81560818dacade360abc8c00a9665"
        }
      ],
      "title": "ocfs2: split transactions in dio completion to avoid credit exhaustion",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46080",
    "datePublished": "2026-05-27T12:58:17.103Z",
    "dateReserved": "2026-05-13T15:03:33.096Z",
    "dateUpdated": "2026-06-01T16:18:07.817Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}