Vulnerability-Lookup

FKIE_CVE-2025-39842

Vulnerability from fkie_nvd - Published: 2025-09-19 16:15 - Updated: 2026-01-20 15:26

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: ocfs2: prevent release journal inode after journal shutdown Before calling ocfs2_delete_osb(), ocfs2_journal_shutdown() has already been executed in ocfs2_dismount_volume(), so osb->journal must be NULL. Therefore, the following calltrace will inevitably fail when it reaches jbd2_journal_release_jbd_inode(). ocfs2_dismount_volume()-> ocfs2_delete_osb()-> ocfs2_free_slot_info()-> __ocfs2_free_slot_info()-> evict()-> ocfs2_evict_inode()-> ocfs2_clear_inode()-> jbd2_journal_release_jbd_inode(osb->journal->j_journal, Adding osb->journal checks will prevent null-ptr-deref during the above execution path.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/42c415c53ad2065088cc411d08925effa5b3d255	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/85e66331b60601d903cceaf8c10a234db863cd78	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e9188f66e94955431ddbe2cd1cdf8ff2bb486abf	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f46e8ef8bb7b452584f2e75337b619ac51a7cadf	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f4a917e6cd6c798f7adf39907f117fc754db1283	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	Third Party Advisory, Mailing List

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17
debian	debian_linux	11.0

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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  "cveTags": [],
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: prevent release journal inode after journal shutdown\n\nBefore calling ocfs2_delete_osb(), ocfs2_journal_shutdown() has already\nbeen executed in ocfs2_dismount_volume(), so osb-\u003ejournal must be NULL. \nTherefore, the following calltrace will inevitably fail when it reaches\njbd2_journal_release_jbd_inode().\n\nocfs2_dismount_volume()-\u003e\n  ocfs2_delete_osb()-\u003e\n    ocfs2_free_slot_info()-\u003e\n      __ocfs2_free_slot_info()-\u003e\n        evict()-\u003e\n          ocfs2_evict_inode()-\u003e\n            ocfs2_clear_inode()-\u003e\n\t      jbd2_journal_release_jbd_inode(osb-\u003ejournal-\u003ej_journal,\n\nAdding osb-\u003ejournal checks will prevent null-ptr-deref during the above\nexecution path."
    }
  ],
  "id": "CVE-2025-39842",
  "lastModified": "2026-01-20T15:26:04.463",
  "metrics": {
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        "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"
      }
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  "published": "2025-09-19T16:15:42.930",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "value": "NVD-CWE-noinfo"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2025-39842 (GCVE-0-2025-39842)

Vulnerability from cvelistv5 – Published: 2025-09-19 15:26 – Updated: 2025-11-03 17:43

Title

ocfs2: prevent release journal inode after journal shutdown

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/42c415c53ad206508…
	https://git.kernel.org/stable/c/e9188f66e94955431…
	https://git.kernel.org/stable/c/f4a917e6cd6c798f7…
	https://git.kernel.org/stable/c/85e66331b60601d90…
	https://git.kernel.org/stable/c/f46e8ef8bb7b45258…

Impacted products

Vendor

Product

Version

Linux

Affected: da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 , < 42c415c53ad2065088cc411d08925effa5b3d255 (git)
Affected: da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 , < e9188f66e94955431ddbe2cd1cdf8ff2bb486abf (git)
Affected: da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 , < f4a917e6cd6c798f7adf39907f117fc754db1283 (git)
Affected: da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 , < 85e66331b60601d903cceaf8c10a234db863cd78 (git)
Affected: da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 , < f46e8ef8bb7b452584f2e75337b619ac51a7cadf (git)

Linux

Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 6.1.151 , ≤ 6.1.* (semver)
Unaffected: 6.6.105 , ≤ 6.6.* (semver)
Unaffected: 6.12.46 , ≤ 6.12.* (semver)
Unaffected: 6.16.6 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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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-2025-39842

CVE-2025-39842 (GCVE-0-2025-39842)

Tags

Sightings

Nomenclature