Vulnerability-Lookup

FKIE_CVE-2026-43255

Vulnerability from fkie_nvd - Published: 2026-05-06 12:16 - Updated: 2026-05-11 18:18

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: wifi: libertas: fix WARNING in usb_tx_block The function usb_tx_block() submits cardp->tx_urb without ensuring that any previous transmission on this URB has completed. If a second call occurs while the URB is still active (e.g. during rapid firmware loading), usb_submit_urb() detects the active state and triggers a warning: 'URB submitted while active'. Fix this by enforcing serialization: call usb_kill_urb() before submitting the new request. This ensures the URB is idle and safe to reuse.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2902a9b4415a6bafc9b1e5dd360f065d757a0bb7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3308c7504e093b22e91a4468470309cee2e26b83	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/498525d8358d6d20918787e59736d5b6a021e9fd	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5bfb25495e391a1be0db94b15715174fa06b93a1	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/948a39c95d0f8d73722910f8cdb7b6e3e9206232	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b82073564373e68c6ae3a96039fae14cd002a496	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d66676e6ca96bf8680f869a9bd6573b26c634622	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fc188b44547dea4e7350833171982a6312befde9	Patch

Impacted products

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

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "045B0D8F-6A7D-440E-845B-FD59F69D247A",
              "versionEndExcluding": "5.10.252",
              "versionStartIncluding": "2.6.22",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4002FC2B-1456-4666-B240-0EBF590C4671",
              "versionEndExcluding": "5.15.202",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "797C7F46-D0BE-4FB8-A502-C5EF8E6B6654",
              "versionEndExcluding": "6.1.165",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "851E9353-6C09-4CC9-877E-E09DB164A3C2",
              "versionEndExcluding": "6.6.128",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BCE16369-98ED-41CF-8995-DFDC10B288D2",
              "versionEndExcluding": "6.12.75",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B",
              "versionEndExcluding": "6.18.16",
              "versionStartIncluding": "6.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67",
              "versionEndExcluding": "6.19.6",
              "versionStartIncluding": "6.19",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas: fix WARNING in usb_tx_block\n\nThe function usb_tx_block() submits cardp-\u003etx_urb without ensuring that\nany previous transmission on this URB has completed. If a second call\noccurs while the URB is still active (e.g. during rapid firmware loading),\nusb_submit_urb() detects the active state and triggers a warning:\n\u0027URB submitted while active\u0027.\n\nFix this by enforcing serialization: call usb_kill_urb() before\nsubmitting the new request. This ensures the URB is idle and safe to reuse."
    }
  ],
  "id": "CVE-2026-43255",
  "lastModified": "2026-05-11T18:18:36.687",
  "metrics": {
    "cvssMetricV31": [
      {
        "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"
      }
    ]
  },
  "published": "2026-05-06T12:16:46.263",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2902a9b4415a6bafc9b1e5dd360f065d757a0bb7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3308c7504e093b22e91a4468470309cee2e26b83"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/498525d8358d6d20918787e59736d5b6a021e9fd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5bfb25495e391a1be0db94b15715174fa06b93a1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/948a39c95d0f8d73722910f8cdb7b6e3e9206232"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b82073564373e68c6ae3a96039fae14cd002a496"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d66676e6ca96bf8680f869a9bd6573b26c634622"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/fc188b44547dea4e7350833171982a6312befde9"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-43255 (GCVE-0-2026-43255)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-05-11 22:21

Title

wifi: libertas: fix WARNING in usb_tx_block

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/498525d8358d6d209…
https://git.kernel.org/stable/c/2902a9b4415a6bafc…
https://git.kernel.org/stable/c/948a39c95d0f8d737…
https://git.kernel.org/stable/c/5bfb25495e391a1be…
https://git.kernel.org/stable/c/b82073564373e68c6…
https://git.kernel.org/stable/c/3308c7504e093b22e…
https://git.kernel.org/stable/c/fc188b44547dea4e7…
https://git.kernel.org/stable/c/d66676e6ca96bf868…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 , < 498525d8358d6d20918787e59736d5b6a021e9fd (git) Affected: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 , < 2902a9b4415a6bafc9b1e5dd360f065d757a0bb7 (git) Affected: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 , < 948a39c95d0f8d73722910f8cdb7b6e3e9206232 (git) Affected: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 , < 5bfb25495e391a1be0db94b15715174fa06b93a1 (git) Affected: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 , < b82073564373e68c6ae3a96039fae14cd002a496 (git) Affected: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 , < 3308c7504e093b22e91a4468470309cee2e26b83 (git) Affected: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 , < fc188b44547dea4e7350833171982a6312befde9 (git) Affected: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 , < d66676e6ca96bf8680f869a9bd6573b26c634622 (git)
Linux	Linux	Affected: 2.6.22 Unaffected: 0 , < 2.6.22 (semver) Unaffected: 5.10.252 , ≤ 5.10.* (semver) Unaffected: 5.15.202 , ≤ 5.15.* (semver) Unaffected: 6.1.165 , ≤ 6.1.* (semver) Unaffected: 6.6.128 , ≤ 6.6.* (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.16 , ≤ 6.18.* (semver) Unaffected: 6.19.6 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/marvell/libertas/if_usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "498525d8358d6d20918787e59736d5b6a021e9fd",
              "status": "affected",
              "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172",
              "versionType": "git"
            },
            {
              "lessThan": "2902a9b4415a6bafc9b1e5dd360f065d757a0bb7",
              "status": "affected",
              "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172",
              "versionType": "git"
            },
            {
              "lessThan": "948a39c95d0f8d73722910f8cdb7b6e3e9206232",
              "status": "affected",
              "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172",
              "versionType": "git"
            },
            {
              "lessThan": "5bfb25495e391a1be0db94b15715174fa06b93a1",
              "status": "affected",
              "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172",
              "versionType": "git"
            },
            {
              "lessThan": "b82073564373e68c6ae3a96039fae14cd002a496",
              "status": "affected",
              "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172",
              "versionType": "git"
            },
            {
              "lessThan": "3308c7504e093b22e91a4468470309cee2e26b83",
              "status": "affected",
              "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172",
              "versionType": "git"
            },
            {
              "lessThan": "fc188b44547dea4e7350833171982a6312befde9",
              "status": "affected",
              "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172",
              "versionType": "git"
            },
            {
              "lessThan": "d66676e6ca96bf8680f869a9bd6573b26c634622",
              "status": "affected",
              "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/marvell/libertas/if_usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.22"
            },
            {
              "lessThan": "2.6.22",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.252",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.202",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.165",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.128",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.252",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.202",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.165",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.128",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.75",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.16",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.6",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas: fix WARNING in usb_tx_block\n\nThe function usb_tx_block() submits cardp-\u003etx_urb without ensuring that\nany previous transmission on this URB has completed. If a second call\noccurs while the URB is still active (e.g. during rapid firmware loading),\nusb_submit_urb() detects the active state and triggers a warning:\n\u0027URB submitted while active\u0027.\n\nFix this by enforcing serialization: call usb_kill_urb() before\nsubmitting the new request. This ensures the URB is idle and safe to reuse."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:21:00.707Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/498525d8358d6d20918787e59736d5b6a021e9fd"
        },
        {
          "url": "https://git.kernel.org/stable/c/2902a9b4415a6bafc9b1e5dd360f065d757a0bb7"
        },
        {
          "url": "https://git.kernel.org/stable/c/948a39c95d0f8d73722910f8cdb7b6e3e9206232"
        },
        {
          "url": "https://git.kernel.org/stable/c/5bfb25495e391a1be0db94b15715174fa06b93a1"
        },
        {
          "url": "https://git.kernel.org/stable/c/b82073564373e68c6ae3a96039fae14cd002a496"
        },
        {
          "url": "https://git.kernel.org/stable/c/3308c7504e093b22e91a4468470309cee2e26b83"
        },
        {
          "url": "https://git.kernel.org/stable/c/fc188b44547dea4e7350833171982a6312befde9"
        },
        {
          "url": "https://git.kernel.org/stable/c/d66676e6ca96bf8680f869a9bd6573b26c634622"
        }
      ],
      "title": "wifi: libertas: fix WARNING in usb_tx_block",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43255",
    "datePublished": "2026-05-06T11:28:44.522Z",
    "dateReserved": "2026-05-01T14:12:55.996Z",
    "dateUpdated": "2026-05-11T22:21:00.707Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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-2026-43255

CVE-2026-43255 (GCVE-0-2026-43255)

Tags

Sightings

Nomenclature