CVE-2025-38420 (GCVE-0-2025-38420)

Vulnerability from cvelistv5 – Published: 2025-07-25 14:16 – Updated: 2026-11-05 21:02
VLAI
Title
wifi: carl9170: do not ping device which has failed to load firmware
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: carl9170: do not ping device which has failed to load firmware Syzkaller reports [1, 2] crashes caused by an attempts to ping the device which has failed to load firmware. Since such a device doesn't pass 'ieee80211_register_hw()', an internal workqueue managed by 'ieee80211_queue_work()' is not yet created and an attempt to queue work on it causes null-ptr-deref. [1] https://syzkaller.appspot.com/bug?extid=9a4aec827829942045ff [2] https://syzkaller.appspot.com/bug?extid=0d8afba53e8fb2633217
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 20:56 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6641 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e4a668c59080f862af3ecc28b359533027cbe434 , < 0140d3d37f0f1759d1fdedd854c7875a86e15f8d (git)
Affected: e4a668c59080f862af3ecc28b359533027cbe434 , < 8a3734a6f4c05fd24605148f21fb2066690d61b3 (git)
Affected: e4a668c59080f862af3ecc28b359533027cbe434 , < 527fad1ae32ffa2d4853a1425fe1c8dbb8c9744c (git)
Affected: e4a668c59080f862af3ecc28b359533027cbe434 , < bfeede26e97ce4a15a0b961118de4a0e28c9907a (git)
Affected: e4a668c59080f862af3ecc28b359533027cbe434 , < 4e9ab5c48ad5153cc908dd29abad0cd2a92951e4 (git)
Affected: e4a668c59080f862af3ecc28b359533027cbe434 , < 301268dbaac8e9013719e162a000202eac8054be (git)
Affected: e4a668c59080f862af3ecc28b359533027cbe434 , < 11ef72b3312752c2ff92f3c1e64912be3228ed36 (git)
Affected: e4a668c59080f862af3ecc28b359533027cbe434 , < 15d25307692312cec4b57052da73387f91a2e870 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.38
Unaffected: 0 , < 2.6.38 (semver)
Unaffected: 5.4.295 , ≤ 5.4.* (semver)
Unaffected: 5.10.239 , ≤ 5.10.* (semver)
Unaffected: 5.15.186 , ≤ 5.15.* (semver)
Unaffected: 6.1.142 , ≤ 6.1.* (semver)
Unaffected: 6.6.95 , ≤ 6.6.* (semver)
Unaffected: 6.12.35 , ≤ 6.12.* (semver)
Unaffected: 6.15.4 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: carl9170: no hacer ping al dispositivo que no ha podido cargar el firmware. Syzkaller reporta [1, 2] fallos causados por intentos de hacer ping al dispositivo que no ha podido cargar el firmware. Dado que dicho dispositivo no supera la prueba \u0027ieee80211_register_hw()\u0027, a\u00fan no se crea una cola de trabajo interna administrada por \u0027ieee80211_queue_work()\u0027 y cualquier intento de cola de trabajo en ella provoca un error de referencia nulo (PTR). [1] https://syzkaller.appspot.com/bug?extid=9a4aec827829942045ff [2] https://syzkaller.appspot.com/bug?extid=0d8afba53e8fb2633217"
          }
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        "id": "CVE-2025-38420",
        "lastModified": "2026-11-05T21:18:30.890",
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                "scope": "UNCHANGED",
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        "vulnStatus": "Analyzed",
        "weaknesses": [
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              {
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                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
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      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-11-05T14:59:55+00:00",
      "cve": "CVE-2025-38420",
      "id": "CVE-2025-38420",
      "initial_release_date": "2025-07-25T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "158",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Denial of Service in carl9170 Wi-Fi driver via ping to failed device",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38420.json",
      "version": "3"
    },
    "vulnrichment": {
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            ],
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          {
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                  "content": {
                    "id": "CVE-2025-38420",
                    "options": [
                      {
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                      },
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                      },
                      {
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              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
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        ],
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              "product": "Linux",
              "programFiles": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
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                  "version": "2.6.38"
                },
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                  "version": "0",
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                {
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                  "status": "unaffected",
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                {
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                  "status": "unaffected",
                  "version": "6.1.142",
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                },
                {
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                  "version": "6.6.95",
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                },
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                  "status": "unaffected",
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                  "version": "6.16",
                  "versionType": "original_commit_for_fix"
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                    {
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          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: carl9170: do not ping device which has failed to load firmware\n\nSyzkaller reports [1, 2] crashes caused by an attempts to ping\nthe device which has failed to load firmware. Since such a device\ndoesn\u0027t pass \u0027ieee80211_register_hw()\u0027, an internal workqueue\nmanaged by \u0027ieee80211_queue_work()\u0027 is not yet created and an\nattempt to queue work on it causes null-ptr-deref.\n\n[1] https://syzkaller.appspot.com/bug?extid=9a4aec827829942045ff\n[2] https://syzkaller.appspot.com/bug?extid=0d8afba53e8fb2633217"
            }
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            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
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            },
            {
              "url": "https://git.kernel.org/stable/c/527fad1ae32ffa2d4853a1425fe1c8dbb8c9744c"
            },
            {
              "url": "https://git.kernel.org/stable/c/bfeede26e97ce4a15a0b961118de4a0e28c9907a"
            },
            {
              "url": "https://git.kernel.org/stable/c/4e9ab5c48ad5153cc908dd29abad0cd2a92951e4"
            },
            {
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            },
            {
              "url": "https://git.kernel.org/stable/c/11ef72b3312752c2ff92f3c1e64912be3228ed36"
            },
            {
              "url": "https://git.kernel.org/stable/c/15d25307692312cec4b57052da73387f91a2e870"
            }
          ],
          "title": "wifi: carl9170: do not ping device which has failed to load firmware",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2025-38420",
        "datePublished": "2025-07-25T14:16:41.479Z",
        "dateReserved": "2025-04-16T04:51:24.014Z",
        "dateUpdated": "2026-11-05T21:02:37.299Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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