Vulnerability-Lookup

FKIE_CVE-2026-43117

Vulnerability from fkie_nvd - Published: 2026-05-06 10:16 - Updated: 2026-05-08 17:43

Severity ?

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

Summary

In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() If overlay is used on top of btrfs, dentry->d_sb translates to overlay's super block and fsid assignment will lead to a crash. Use file_inode(file)->i_sb to always get btrfs_sb.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2e4adfaec97ee053ad1bdfb5036845e66f7e0d8a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/32372781d664a9b03c40343e96c29d0a6139f97d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a85b46db143fda5869e7d8df8f258ccef5fa1719	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c09a7446aab5773f38d6abb25fce99b8e1dfbc97	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d110d7cdb045715c0b45b0dfd974525bb38f653d	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

{
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()\n\nIf overlay is used on top of btrfs, dentry-\u003ed_sb translates to overlay\u0027s\nsuper block and fsid assignment will lead to a crash.\n\nUse file_inode(file)-\u003ei_sb to always get btrfs_sb."
    }
  ],
  "id": "CVE-2026-43117",
  "lastModified": "2026-05-08T17:43:39.250",
  "metrics": {
    "cvssMetricV31": [
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
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        "impactScore": 5.2,
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        "type": "Secondary"
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  "vulnStatus": "Analyzed",
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      "source": "nvd@nist.gov",
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}

CVE-2026-43117 (GCVE-0-2026-43117)

Vulnerability from cvelistv5 – Published: 2026-05-06 07:40 – Updated: 2026-05-11 22:18

Title

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()

Summary

Severity ?

9.1 (Critical)


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

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/c09a7446aab5773f3…
https://git.kernel.org/stable/c/32372781d664a9b03…
https://git.kernel.org/stable/c/2e4adfaec97ee053a…
https://git.kernel.org/stable/c/d110d7cdb045715c0…
https://git.kernel.org/stable/c/a85b46db143fda586…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: bc074524e123ded281cde25ebc5661910f9679e3 , < c09a7446aab5773f38d6abb25fce99b8e1dfbc97 (git) Affected: bc074524e123ded281cde25ebc5661910f9679e3 , < 32372781d664a9b03c40343e96c29d0a6139f97d (git) Affected: bc074524e123ded281cde25ebc5661910f9679e3 , < 2e4adfaec97ee053ad1bdfb5036845e66f7e0d8a (git) Affected: bc074524e123ded281cde25ebc5661910f9679e3 , < d110d7cdb045715c0b45b0dfd974525bb38f653d (git) Affected: bc074524e123ded281cde25ebc5661910f9679e3 , < a85b46db143fda5869e7d8df8f258ccef5fa1719 (git)
Linux	Linux	Affected: 4.8 Unaffected: 0 , < 4.8 (semver) Unaffected: 6.6.136 , ≤ 6.6.* (semver) Unaffected: 6.12.83 , ≤ 6.12.* (semver) Unaffected: 6.18.24 , ≤ 6.18.* (semver) Unaffected: 6.19.14 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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        {
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          "product": "Linux",
          "programFiles": [
            "include/trace/events/btrfs.h"
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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

FKIE_CVE-2026-43117

CVE-2026-43117 (GCVE-0-2026-43117)

Tags

Sightings

Nomenclature