Vulnerability-Lookup

FKIE_CVE-2022-50485

Vulnerability from fkie_nvd - Published: 2025-10-04 16:15 - Updated: 2026-01-27 17:41

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode There are many places that will get unhappy (and crash) when ext4_iget() returns a bad inode. However, if iget the boot loader inode, allows a bad inode to be returned, because the inode may not be initialized. This mechanism can be used to bypass some checks and cause panic. To solve this problem, we add a special iget flag EXT4_IGET_BAD. Only with this flag we'd be returning bad inode from ext4_iget(), otherwise we always return the error code if the inode is bad inode.(suggested by Jan Kara)

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2142dfa1de61e25b83198af0308ec7689cca25d3	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/488a5c2bf7543c3cd3f07a025f2e62be91599430	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/63b1e9bccb71fe7d7e3ddc9877dbdc85e5d2d023	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c0a738875c2e9c8c3366d792f8bf7fe508d5e5a5	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f725b290ed79ad61e4f721fee95a287892d8b1ad	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f7e6b5548f915d7aa435d0764d41eacfb49c6e09	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D7CA85C8-20BC-4F07-8FD9-16F788191F2C",
              "versionEndExcluding": "5.4.229",
              "versionStartIncluding": "3.10",
              "vulnerable": true
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            {
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              "matchCriteriaId": "D05D31FC-BD74-4F9E-B1D8-9CED62BE6F65",
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            {
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          "negate": false,
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: add EXT4_IGET_BAD flag to prevent unexpected bad inode\n\nThere are many places that will get unhappy (and crash) when ext4_iget()\nreturns a bad inode. However, if iget the boot loader inode, allows a bad\ninode to be returned, because the inode may not be initialized. This\nmechanism can be used to bypass some checks and cause panic. To solve this\nproblem, we add a special iget flag EXT4_IGET_BAD. Only with this flag\nwe\u0027d be returning bad inode from ext4_iget(), otherwise we always return\nthe error code if the inode is bad inode.(suggested by Jan Kara)"
    }
  ],
  "id": "CVE-2022-50485",
  "lastModified": "2026-01-27T17:41:02.740",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-10-04T16:15:45.340",
  "references": [
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    },
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    },
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    },
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2022-50485 (GCVE-0-2022-50485)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:16 – Updated: 2025-12-23 13:29

Title

ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/2142dfa1de61e25b8…
	https://git.kernel.org/stable/c/c0a738875c2e9c8c3…
	https://git.kernel.org/stable/c/f7e6b5548f915d7aa…
	https://git.kernel.org/stable/c/f725b290ed79ad61e…
	https://git.kernel.org/stable/c/488a5c2bf7543c3cd…
	https://git.kernel.org/stable/c/63b1e9bccb71fe7d7…

Impacted products

Vendor

Product

Version

Linux

Affected: 393d1d1d76933886d5e1ce603214c9987589c6d5 , < 2142dfa1de61e25b83198af0308ec7689cca25d3 (git)
Affected: 393d1d1d76933886d5e1ce603214c9987589c6d5 , < c0a738875c2e9c8c3366d792f8bf7fe508d5e5a5 (git)
Affected: 393d1d1d76933886d5e1ce603214c9987589c6d5 , < f7e6b5548f915d7aa435d0764d41eacfb49c6e09 (git)
Affected: 393d1d1d76933886d5e1ce603214c9987589c6d5 , < f725b290ed79ad61e4f721fee95a287892d8b1ad (git)
Affected: 393d1d1d76933886d5e1ce603214c9987589c6d5 , < 488a5c2bf7543c3cd3f07a025f2e62be91599430 (git)
Affected: 393d1d1d76933886d5e1ce603214c9987589c6d5 , < 63b1e9bccb71fe7d7e3ddc9877dbdc85e5d2d023 (git)

Linux

Affected: 3.10
Unaffected: 0 , < 3.10 (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.87 , ≤ 5.15.* (semver)
Unaffected: 6.0.18 , ≤ 6.0.* (semver)
Unaffected: 6.1.4 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/ext4.h",
            "fs/ext4/inode.c",
            "fs/ext4/ioctl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
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        },
        {
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            "fs/ext4/ioctl.c"
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              "version": "5.15.87",
              "versionType": "semver"
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              "version": "6.0.18",
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            },
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              "status": "unaffected",
              "version": "6.1.4",
              "versionType": "semver"
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    "datePublished": "2025-10-04T15:16:43.093Z",
    "dateReserved": "2025-10-04T15:13:33.468Z",
    "dateUpdated": "2025-12-23T13:29:37.091Z",
    "state": "PUBLISHED"
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}

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

FKIE_CVE-2022-50485

CVE-2022-50485 (GCVE-0-2022-50485)

Tags

Sightings

Nomenclature