wifi: iwlwifi: mvm: don't try to talk to a dead firmware

{
  "id": "db9993ff5922b9b01ba89af69a387e402c847853dbd57977249628c014d0aa9a",
  "url": "https://osv.dev/vulnerability/CVE-2025-21930",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: iwlwifi: mvm: don't try to talk to a dead firmware",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: don't try to talk to a dead firmware This fixes: bad state = 0 WARNING: CPU: 10 PID: 702 at drivers/net/wireless/inel/iwlwifi/iwl-trans.c:178 iwl_trans_send_cmd+0xba/0xe0 [iwlwifi] Call Trace: ? __warn+0xca/0x1c0 ? iwl_trans_send_cmd+0xba/0xe0 [iwlwifi 64fa9ad799a0e0d2ba53d4af93a53ad9a531f8d4] iwl_fw_dbg_clear_monitor_buf+0xd7/0x110 [iwlwifi 64fa9ad799a0e0d2ba53d4af93a53ad9a531f8d4] _iwl_dbgfs_fw_dbg_clear_write+0xe2/0x120 [iwlmvm 0e8adb18cea92d2c341766bcc10b18699290068a] Ask whether the firmware is alive before sending a command.",
    "evidence": "osv:CVE-2025-21930",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.19",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.13.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-21930",
      "aliases": [
        "CVE-2025-21930"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "268712dc3b344f3a835211e5846e6ebfd7a13cbd"
                },
                {
                  "fixed": "437e93ecd40754f9e938d524daf52a10c589e2d4"
                },
                {
                  "fixed": "e7c31a3f4f27d61b9ccd894a7bf4690f137da0ec"
                },
                {
                  "fixed": "d73d2c6e3313f0ba60711ab4f4b9044eddca9ca5"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21930.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.8.0"
                },
                {
                  "fixed": "6.12.19"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.13.7"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21930.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.703388335Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/437e93ecd40754f9e938d524daf52a10c589e2d4",
        "https://git.kernel.org/stable/c/d73d2c6e3313f0ba60711ab4f4b9044eddca9ca5",
        "https://git.kernel.org/stable/c/e7c31a3f4f27d61b9ccd894a7bf4690f137da0ec",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21930.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-21930",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21930.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-21930",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497453,
  "published_at": "2025-04-01T15:41:00.316+00:00"
}