Vulnerability-Lookup

GHSA-W929-9WQ4-XRMP

Vulnerability from github – Published: 2026-05-06 12:30 – Updated: 2026-05-11 18:31

Details

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.

Severity ?

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-43255"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-06T12:16:46Z",
    "severity": "MODERATE"
  },
  "details": "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": "GHSA-w929-9wq4-xrmp",
  "modified": "2026-05-11T18:31:36Z",
  "published": "2026-05-06T12:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43255"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2902a9b4415a6bafc9b1e5dd360f065d757a0bb7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3308c7504e093b22e91a4468470309cee2e26b83"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/498525d8358d6d20918787e59736d5b6a021e9fd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5bfb25495e391a1be0db94b15715174fa06b93a1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/948a39c95d0f8d73722910f8cdb7b6e3e9206232"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b82073564373e68c6ae3a96039fae14cd002a496"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d66676e6ca96bf8680f869a9bd6573b26c634622"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fc188b44547dea4e7350833171982a6312befde9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

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.

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)

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{
  "containers": {
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          "programFiles": [
            "drivers/net/wireless/marvell/libertas/if_usb.c"
          ],
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            },
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              "status": "unaffected",
              "version": "5.10.252",
              "versionType": "semver"
            },
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              "status": "unaffected",
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              "versionType": "semver"
            },
            {
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              "status": "unaffected",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.18.16",
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              "versionType": "semver"
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          "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."
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        {
          "url": "https://git.kernel.org/stable/c/d66676e6ca96bf8680f869a9bd6573b26c634622"
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      "title": "wifi: libertas: fix WARNING in usb_tx_block",
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    "datePublished": "2026-05-06T11:28:44.522Z",
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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-W929-9WQ4-XRMP

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

Tags

Sightings

Nomenclature