Vulnerability-Lookup

GHSA-4JW8-CP5G-24J2

Vulnerability from github – Published: 2026-04-22 15:31 – Updated: 2026-05-06 21:31

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.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31451"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T14:16:39Z",
    "severity": "MODERATE"
  },
  "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": "2026-05-06T21:31:29Z",
  "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": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-05-11 22:08

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

5 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

2 products

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

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/inline.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
              "version": "46c7f254543dedcf134ad05091ed2b935a9a597d",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "46c7f254543dedcf134ad05091ed2b935a9a597d",
              "versionType": "git"
            },
            {
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              "versionType": "git"
            },
            {
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              "versionType": "git"
            },
            {
              "lessThan": "356227096eb66e41b23caf7045e6304877322edf",
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              "version": "46c7f254543dedcf134ad05091ed2b935a9a597d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.8"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.131",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
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          "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:08:57.763Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/65c6c30ce6362c1c684568744ea510c921a756cd"
        },
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        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/356227096eb66e41b23caf7045e6304877322edf"
        }
      ],
      "title": "ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio",
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        "engine": "bippy-1.2.0"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31451",
    "datePublished": "2026-04-22T13:53:46.243Z",
    "dateReserved": "2026-03-09T15:48:24.091Z",
    "dateUpdated": "2026-05-11T22:08:57.763Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-4JW8-CP5G-24J2

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

Tags

Sightings

Nomenclature