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ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-31451

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-31451

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "46c7f254543dedcf134ad05091ed2b935a9a597d",
        "lessThan": "3462a3f0716d27af51896dc8688bcf0628fb17ee",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "46c7f254543dedcf134ad05091ed2b935a9a597d",
        "lessThan": "636e8d85a36ab6c31aafd04ee66a69b18eebee7b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "46c7f254543dedcf134ad05091ed2b935a9a597d",
        "lessThan": "af25a6affeac4919e8d8c5cccc01a9d53478447e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "46c7f254543dedcf134ad05091ed2b935a9a597d",
        "lessThan": "65c6c30ce6362c1c684568744ea510c921a756cd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "46c7f254543dedcf134ad05091ed2b935a9a597d",
        "lessThan": "d4b3f370c3d8f7ce565d4a718572c9f7c12f77ed",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "46c7f254543dedcf134ad05091ed2b935a9a597d",
        "lessThan": "823849a26af089ffc5dfdd2ae4b9d446b46a0cda",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "46c7f254543dedcf134ad05091ed2b935a9a597d",
        "lessThan": "a7d600e04732a7d29b107c91fe3aec64cf6ce7f2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "46c7f254543dedcf134ad05091ed2b935a9a597d",
        "lessThan": "356227096eb66e41b23caf7045e6304877322edf",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "fs/ext4/inline.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.8"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.8",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.260",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.211",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.177",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.131",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.80",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.21",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "6.19.11",
        "versionType": "semver",
        "lessThanOrEqual": "6.19.*"
      },
      {
        "status": "unaffected",
        "version": "7.0",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "fs/ext4/inline.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-31451

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#28279 · Revision 1
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Publisher date
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