Vulnerability-Lookup

GHSA-QGHX-F73P-V22R

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33

Details

In the Linux kernel, the following vulnerability has been resolved:

md/md-llbitmap: raise barrier before state machine transition

Move the barrier raise operation before calling llbitmap_state_machine() in both llbitmap_start_write() and llbitmap_start_discard(). This ensures the barrier is in place before any state transitions occur, preventing potential race conditions where the state machine could complete before the barrier is properly raised.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46095"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:31Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/md-llbitmap: raise barrier before state machine transition\n\nMove the barrier raise operation before calling llbitmap_state_machine()\nin both llbitmap_start_write() and llbitmap_start_discard(). This\nensures the barrier is in place before any state transitions occur,\npreventing potential race conditions where the state machine could\ncomplete before the barrier is properly raised.",
  "id": "GHSA-qghx-f73p-v22r",
  "modified": "2026-05-27T15:33:24Z",
  "published": "2026-05-27T15:33:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46095"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9142f00a9287ca38152717e3e88a033a27774e7f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9701d51dd378380ba05293fa391e8ba01065ae8d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef4ca3d4bf09716cff9ba00eb0351deadc8417ab"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-46095 (GCVE-0-2026-46095)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:58 – Updated: 2026-05-27 12:58

Title

md/md-llbitmap: raise barrier before state machine transition

Summary

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: raise barrier before state machine transition Move the barrier raise operation before calling llbitmap_state_machine() in both llbitmap_start_write() and llbitmap_start_discard(). This ensures the barrier is in place before any state transitions occur, preventing potential race conditions where the state machine could complete before the barrier is properly raised.

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/9142f00a9287ca381…
https://git.kernel.org/stable/c/9701d51dd378380ba…
https://git.kernel.org/stable/c/ef4ca3d4bf09716cf…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5ab829f1971dc99f2aac10846c378e67fc875abc , < 9142f00a9287ca38152717e3e88a033a27774e7f (git) Affected: 5ab829f1971dc99f2aac10846c378e67fc875abc , < 9701d51dd378380ba05293fa391e8ba01065ae8d (git) Affected: 5ab829f1971dc99f2aac10846c378e67fc875abc , < ef4ca3d4bf09716cff9ba00eb0351deadc8417ab (git)
Linux	Linux	Affected: 6.18 Unaffected: 0 , < 6.18 (semver) Unaffected: 6.18.27 , ≤ 6.18.* (semver) Unaffected: 7.0.4 , ≤ 7.0.* (semver) Unaffected: 7.1-rc1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/md-llbitmap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9142f00a9287ca38152717e3e88a033a27774e7f",
              "status": "affected",
              "version": "5ab829f1971dc99f2aac10846c378e67fc875abc",
              "versionType": "git"
            },
            {
              "lessThan": "9701d51dd378380ba05293fa391e8ba01065ae8d",
              "status": "affected",
              "version": "5ab829f1971dc99f2aac10846c378e67fc875abc",
              "versionType": "git"
            },
            {
              "lessThan": "ef4ca3d4bf09716cff9ba00eb0351deadc8417ab",
              "status": "affected",
              "version": "5ab829f1971dc99f2aac10846c378e67fc875abc",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/md-llbitmap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "lessThan": "6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
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                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/md-llbitmap: raise barrier before state machine transition\n\nMove the barrier raise operation before calling llbitmap_state_machine()\nin both llbitmap_start_write() and llbitmap_start_discard(). This\nensures the barrier is in place before any state transitions occur,\npreventing potential race conditions where the state machine could\ncomplete before the barrier is properly raised."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:58:48.179Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/9142f00a9287ca38152717e3e88a033a27774e7f"
        },
        {
          "url": "https://git.kernel.org/stable/c/9701d51dd378380ba05293fa391e8ba01065ae8d"
        },
        {
          "url": "https://git.kernel.org/stable/c/ef4ca3d4bf09716cff9ba00eb0351deadc8417ab"
        }
      ],
      "title": "md/md-llbitmap: raise barrier before state machine transition",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46095",
    "datePublished": "2026-05-27T12:58:48.179Z",
    "dateReserved": "2026-05-13T15:03:33.097Z",
    "dateUpdated": "2026-05-27T12:58:48.179Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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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

GHSA-QGHX-F73P-V22R

CVE-2026-46095 (GCVE-0-2026-46095)

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Sightings

Nomenclature