FKIE_CVE-2026-72005

Vulnerability from fkie_nvd - Published: 2026-08-15 06:20 - Updated: 2026-10-19 22:17
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: rt2x00: avoid full teardown before work setup in probe rt2x00lib_probe_dev() uses the full rt2x00lib_remove_dev() teardown for all probe failures. However, drv_data allocation and workqueue allocation can fail before intf_work, autowakeup_work and sleep_work have been initialized. Do not enter the full remove path until the probe has reached the point where those work items are set up. Return directly for drv_data allocation failure, and use a small early cleanup path for workqueue allocation failure. This issue was found by our static analysis tool and then confirmed by manual review of rt2x00lib_probe_dev() and rt2x00lib_remove_dev(). The early probe exits should not call a common teardown path that assumes the later work setup has already completed. A QEMU PoC forced alloc_ordered_workqueue() to fail before the work initializers are reached. The resulting fail path entered rt2x00lib_remove_dev(), and DEBUG_OBJECTS reported invalid work drains with rt2x00lib_probe_dev() and rt2x00lib_remove_dev() in the stack.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3c0427d719bddb33caf18ff4ffb77cb47de7eb00
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/536fb3d739d75a03cb318c0c6fe799425cfea501
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/56994852d704535ea354a4627ca667b1b4fa0deb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/59afe6148927395cf86f9429900e029a48b1d42b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/66bd9b1a72de7c2f5141b02d796048aafaed8a49
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/816559409e340acaa5c9d868291dab30d8c80263
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8b58d1f1356df6a7d2de3f55bb665b18b04ffda0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb7474d0253bb2de4793e1d3ce833e8564bbe732
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ralink/rt2x00/rt2x00dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8b58d1f1356df6a7d2de3f55bb665b18b04ffda0",
              "status": "affected",
              "version": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
              "versionType": "git"
            },
            {
              "lessThan": "59afe6148927395cf86f9429900e029a48b1d42b",
              "status": "affected",
              "version": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
              "versionType": "git"
            },
            {
              "lessThan": "3c0427d719bddb33caf18ff4ffb77cb47de7eb00",
              "status": "affected",
              "version": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
              "versionType": "git"
            },
            {
              "lessThan": "eb7474d0253bb2de4793e1d3ce833e8564bbe732",
              "status": "affected",
              "version": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
              "versionType": "git"
            },
            {
              "lessThan": "66bd9b1a72de7c2f5141b02d796048aafaed8a49",
              "status": "affected",
              "version": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
              "versionType": "git"
            },
            {
              "lessThan": "816559409e340acaa5c9d868291dab30d8c80263",
              "status": "affected",
              "version": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
              "versionType": "git"
            },
            {
              "lessThan": "56994852d704535ea354a4627ca667b1b4fa0deb",
              "status": "affected",
              "version": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
              "versionType": "git"
            },
            {
              "lessThan": "536fb3d739d75a03cb318c0c6fe799425cfea501",
              "status": "affected",
              "version": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ralink/rt2x00/rt2x00dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.39"
            },
            {
              "lessThan": "2.6.39",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rt2x00: avoid full teardown before work setup in probe\n\nrt2x00lib_probe_dev() uses the full rt2x00lib_remove_dev() teardown for\nall probe failures. However, drv_data allocation and workqueue allocation\ncan fail before intf_work, autowakeup_work and sleep_work have been\ninitialized.\n\nDo not enter the full remove path until the probe has reached the point\nwhere those work items are set up. Return directly for drv_data allocation\nfailure, and use a small early cleanup path for workqueue allocation\nfailure.\n\nThis issue was found by our static analysis tool and then confirmed by\nmanual review of rt2x00lib_probe_dev() and rt2x00lib_remove_dev(). The\nearly probe exits should not call a common teardown path that assumes the\nlater work setup has already completed.\n\nA QEMU PoC forced alloc_ordered_workqueue() to fail before the work\ninitializers are reached. The resulting fail path entered\nrt2x00lib_remove_dev(), and DEBUG_OBJECTS reported invalid work drains with\nrt2x00lib_probe_dev() and rt2x00lib_remove_dev() in the stack."
    }
  ],
  "id": "CVE-2026-72005",
  "lastModified": "2026-10-19T22:17:21.383",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-72005",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-16T15:49:49.454298Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-15T06:20:59.113",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3c0427d719bddb33caf18ff4ffb77cb47de7eb00"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/536fb3d739d75a03cb318c0c6fe799425cfea501"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/56994852d704535ea354a4627ca667b1b4fa0deb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/59afe6148927395cf86f9429900e029a48b1d42b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/66bd9b1a72de7c2f5141b02d796048aafaed8a49"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/816559409e340acaa5c9d868291dab30d8c80263"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8b58d1f1356df6a7d2de3f55bb665b18b04ffda0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eb7474d0253bb2de4793e1d3ce833e8564bbe732"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-404"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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