Vulnerability-Lookup

GHSA-RR6W-WV7X-7VHX

Vulnerability from github – Published: 2026-04-24 15:32 – Updated: 2026-04-24 15:32

Details

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

PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup

Disable the delayed work before clearing BAR mappings and doorbells to avoid running the handler after resources have been torn down.

Unable to handle kernel paging request at virtual address ffff800083f46004 [...] Internal error: Oops: 0000000096000007 [#1] SMP [...] Call trace: epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P) process_one_work+0x154/0x3b0 worker_thread+0x2c8/0x400 kthread+0x148/0x210 ret_from_fork+0x10/0x20

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31595"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-24T15:16:37Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup\n\nDisable the delayed work before clearing BAR mappings and doorbells to\navoid running the handler after resources have been torn down.\n\n  Unable to handle kernel paging request at virtual address ffff800083f46004\n  [...]\n  Internal error: Oops: 0000000096000007 [#1]  SMP\n  [...]\n  Call trace:\n   epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P)\n   process_one_work+0x154/0x3b0\n   worker_thread+0x2c8/0x400\n   kthread+0x148/0x210\n   ret_from_fork+0x10/0x20",
  "id": "GHSA-rr6w-wv7x-7vhx",
  "modified": "2026-04-24T15:32:34Z",
  "published": "2026-04-24T15:32:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31595"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5999067140c67530a6cb6f41a8471596e60452cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6773cc24c004930903a57761132c1e7728907f8f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9921cce25bfe4021f6e55ca995351eb967165297"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fbb6c353fa2fb5f5f990eda034a1074b0356127e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-31595 (GCVE-0-2026-31595)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:42 – Updated: 2026-04-24 14:42

Title

PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup

Summary

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup Disable the delayed work before clearing BAR mappings and doorbells to avoid running the handler after resources have been torn down. Unable to handle kernel paging request at virtual address ffff800083f46004 [...] Internal error: Oops: 0000000096000007 [#1] SMP [...] Call trace: epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P) process_one_work+0x154/0x3b0 worker_thread+0x2c8/0x400 kthread+0x148/0x210 ret_from_fork+0x10/0x20

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/6773cc24c00493090…
	https://git.kernel.org/stable/c/9921cce25bfe4021f…
	https://git.kernel.org/stable/c/5999067140c67530a…
	https://git.kernel.org/stable/c/fbb6c353fa2fb5f5f…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6773cc24c004930903a57761132c1e7728907f8f (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9921cce25bfe4021f6e55ca995351eb967165297 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5999067140c67530a6cb6f41a8471596e60452cb (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fbb6c353fa2fb5f5f990eda034a1074b0356127e (git)

Linux

Unaffected: 6.12.83 , ≤ 6.12.* (semver)
Unaffected: 6.18.24 , ≤ 6.18.* (semver)
Unaffected: 6.19.14 , ≤ 6.19.* (semver)
Unaffected: 7.0.1 , ≤ 7.0.* (semver)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/endpoint/functions/pci-epf-vntb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6773cc24c004930903a57761132c1e7728907f8f",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "9921cce25bfe4021f6e55ca995351eb967165297",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "5999067140c67530a6cb6f41a8471596e60452cb",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "fbb6c353fa2fb5f5f990eda034a1074b0356127e",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/endpoint/functions/pci-epf-vntb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.83",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.83",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup\n\nDisable the delayed work before clearing BAR mappings and doorbells to\navoid running the handler after resources have been torn down.\n\n  Unable to handle kernel paging request at virtual address ffff800083f46004\n  [...]\n  Internal error: Oops: 0000000096000007 [#1]  SMP\n  [...]\n  Call trace:\n   epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P)\n   process_one_work+0x154/0x3b0\n   worker_thread+0x2c8/0x400\n   kthread+0x148/0x210\n   ret_from_fork+0x10/0x20"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-24T14:42:21.355Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6773cc24c004930903a57761132c1e7728907f8f"
        },
        {
          "url": "https://git.kernel.org/stable/c/9921cce25bfe4021f6e55ca995351eb967165297"
        },
        {
          "url": "https://git.kernel.org/stable/c/5999067140c67530a6cb6f41a8471596e60452cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/fbb6c353fa2fb5f5f990eda034a1074b0356127e"
        }
      ],
      "title": "PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31595",
    "datePublished": "2026-04-24T14:42:21.355Z",
    "dateReserved": "2026-03-09T15:48:24.121Z",
    "dateUpdated": "2026-04-24T14:42:21.355Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

GHSA-RR6W-WV7X-7VHX

CVE-2026-31595 (GCVE-0-2026-31595)

Tags

Sightings

Nomenclature