Vulnerability-Lookup

CVE-2026-31451 (GCVE-0-2026-31451)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-04-23 15:18

Title

ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio Replace BUG_ON() with proper error handling when inline data size exceeds PAGE_SIZE. This prevents kernel panic and allows the system to continue running while properly reporting the filesystem corruption. The error is logged via ext4_error_inode(), the buffer head is released to prevent memory leak, and -EFSCORRUPTED is returned to indicate filesystem corruption.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/65c6c30ce6362c1c6…
	https://git.kernel.org/stable/c/d4b3f370c3d8f7ce5…
	https://git.kernel.org/stable/c/823849a26af089ffc…
	https://git.kernel.org/stable/c/a7d600e04732a7d29…
	https://git.kernel.org/stable/c/356227096eb66e41b…

Impacted products

Vendor

Product

Version

Linux

Affected: 46c7f254543dedcf134ad05091ed2b935a9a597d , < 65c6c30ce6362c1c684568744ea510c921a756cd (git)
Affected: 46c7f254543dedcf134ad05091ed2b935a9a597d , < d4b3f370c3d8f7ce565d4a718572c9f7c12f77ed (git)
Affected: 46c7f254543dedcf134ad05091ed2b935a9a597d , < 823849a26af089ffc5dfdd2ae4b9d446b46a0cda (git)
Affected: 46c7f254543dedcf134ad05091ed2b935a9a597d , < a7d600e04732a7d29b107c91fe3aec64cf6ce7f2 (git)
Affected: 46c7f254543dedcf134ad05091ed2b935a9a597d , < 356227096eb66e41b23caf7045e6304877322edf (git)

Linux

Affected: 3.8
Unaffected: 0 , < 3.8 (semver)
Unaffected: 6.6.131 , ≤ 6.6.* (semver)
Unaffected: 6.12.80 , ≤ 6.12.* (semver)
Unaffected: 6.18.21 , ≤ 6.18.* (semver)
Unaffected: 6.19.11 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/inline.c"
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          "url": "https://git.kernel.org/stable/c/356227096eb66e41b23caf7045e6304877322edf"
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    "datePublished": "2026-04-22T13:53:46.243Z",
    "dateReserved": "2026-03-09T15:48:24.091Z",
    "dateUpdated": "2026-04-23T15:18:28.679Z",
    "state": "PUBLISHED"
  },
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}

MSRC_CVE-2026-31451

Vulnerability from csaf_microsoft - Published: 2026-04-02 00:00 - Updated: 2026-04-23 14:39

Summary

ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio

Notes

Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

CVE-2026-31451

None Available There is no fix available for this vulnerability as of now

References

URL

Category

	https://msrc.microsoft.com/csaf/vex/2026/msrc_cve…	self
	https://support.microsoft.com/lifecycle	external
	https://www.first.org/cvss	external
	https://msrc.microsoft.com/csaf/vex/2026/msrc_cve…	self

JSON

To clipboard

{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-31451 ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-31451.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio",
    "tracking": {
      "current_release_date": "2026-04-23T14:39:52.000Z",
      "generator": {
        "date": "2026-04-24T07:10:38.694Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2026-31451",
      "initial_release_date": "2026-04-02T00:00:00.000Z",
      "revision_history": [
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          "date": "2026-04-23T01:08:44.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2026-04-23T14:39:52.000Z",
          "legacy_version": "2",
          "number": "2",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "azl3 kernel 0:6.6.130.1-3.azl3",
                "product": {
                  "name": "azl3 kernel 0:6.6.130.1-3.azl3",
                  "product_id": "1"
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            "name": "kernel"
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        "category": "vendor",
        "name": "Microsoft"
      }
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    "relationships": [
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        "full_product_name": {
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          "product_id": "17084-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17084"
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      "notes": [
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      },
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        {
          "category": "self",
          "summary": "CVE-2026-31451 ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-31451.json"
        }
      ],
      "remediations": [
        {
          "category": "none_available",
          "date": "2026-04-23T01:08:44.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17084-1"
          ]
        }
      ],
      "title": "ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio"
    }
  ]
}

GHSA-4JW8-CP5G-24J2

Vulnerability from github – Published: 2026-04-22 15:31 – Updated: 2026-04-22 15:31

Details

In the Linux kernel, the following vulnerability has been resolved:

ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio

Replace BUG_ON() with proper error handling when inline data size exceeds PAGE_SIZE. This prevents kernel panic and allows the system to continue running while properly reporting the filesystem corruption.

The error is logged via ext4_error_inode(), the buffer head is released to prevent memory leak, and -EFSCORRUPTED is returned to indicate filesystem corruption.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-31451"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T14:16:39Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: replace BUG_ON with proper error handling in ext4_read_inline_folio\n\nReplace BUG_ON() with proper error handling when inline data size\nexceeds PAGE_SIZE. This prevents kernel panic and allows the system to\ncontinue running while properly reporting the filesystem corruption.\n\nThe error is logged via ext4_error_inode(), the buffer head is released\nto prevent memory leak, and -EFSCORRUPTED is returned to indicate\nfilesystem corruption.",
  "id": "GHSA-4jw8-cp5g-24j2",
  "modified": "2026-04-22T15:31:41Z",
  "published": "2026-04-22T15:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31451"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/356227096eb66e41b23caf7045e6304877322edf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/65c6c30ce6362c1c684568744ea510c921a756cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/823849a26af089ffc5dfdd2ae4b9d446b46a0cda"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a7d600e04732a7d29b107c91fe3aec64cf6ce7f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4b3f370c3d8f7ce565d4a718572c9f7c12f77ed"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

FKIE_CVE-2026-31451

Vulnerability from fkie_nvd - Published: 2026-04-22 14:16 - Updated: 2026-04-23 16:17

Severity ?

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/356227096eb66e41b23caf7045e6304877322edf
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/65c6c30ce6362c1c684568744ea510c921a756cd
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/823849a26af089ffc5dfdd2ae4b9d446b46a0cda
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a7d600e04732a7d29b107c91fe3aec64cf6ce7f2
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d4b3f370c3d8f7ce565d4a718572c9f7c12f77ed

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: replace BUG_ON with proper error handling in ext4_read_inline_folio\n\nReplace BUG_ON() with proper error handling when inline data size\nexceeds PAGE_SIZE. This prevents kernel panic and allows the system to\ncontinue running while properly reporting the filesystem corruption.\n\nThe error is logged via ext4_error_inode(), the buffer head is released\nto prevent memory leak, and -EFSCORRUPTED is returned to indicate\nfilesystem corruption."
    }
  ],
  "id": "CVE-2026-31451",
  "lastModified": "2026-04-23T16:17:41.280",
  "metrics": {},
  "published": "2026-04-22T14:16:39.310",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/356227096eb66e41b23caf7045e6304877322edf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/65c6c30ce6362c1c684568744ea510c921a756cd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/823849a26af089ffc5dfdd2ae4b9d446b46a0cda"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a7d600e04732a7d29b107c91fe3aec64cf6ce7f2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d4b3f370c3d8f7ce565d4a718572c9f7c12f77ed"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CVE-2026-31451 (GCVE-0-2026-31451)

MSRC_CVE-2026-31451

GHSA-4JW8-CP5G-24J2

FKIE_CVE-2026-31451

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Nomenclature