fkie_cve-2025-38121
Vulnerability from fkie_nvd
Published
2025-07-03 09:15
Modified
2025-07-03 15:13
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mld: avoid panic on init failure In case of an error during init, in_hw_restart will be set, but it will never get cleared. Instead, we will retry to init again, and then we will act like we are in a restart when we are actually not. This causes (among others) to a NULL pointer dereference when canceling rx_omi::finished_work, that was not even initialized, because we thought that we are in hw_restart. Set in_hw_restart to true only if the fw is running, then we know that FW was loaded successfully and we are not going to the retry loop.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/960c7e6d388034d219dafffa6da0a5c2ccd5ff30
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a26ec8e16958b6dd37dac9daf5fb6978fe0cb0b8
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mld: avoid panic on init failure\n\nIn case of an error during init, in_hw_restart will be set, but it will\nnever get cleared.\nInstead, we will retry to init again, and then we will act like we are in a\nrestart when we are actually not.\n\nThis causes (among others) to a NULL pointer dereference when canceling\nrx_omi::finished_work, that was not even initialized, because we thought\nthat we are in hw_restart.\n\nSet in_hw_restart to true only if the fw is running, then we know that\nFW was loaded successfully and we are not going to the retry loop."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: iwlwifi: mld: evitar p\u00e1nico en caso de fallo de inicializaci\u00f3n. En caso de un error durante la inicializaci\u00f3n, se establecer\u00e1 in_hw_restart, pero nunca se borrar\u00e1. En su lugar, volveremos a intentar la inicializaci\u00f3n y luego actuaremos como si estuvi\u00e9ramos en un reinicio cuando en realidad no lo estamos. Esto provoca (entre otras cosas) una desreferencia de puntero NULL al cancelar rx_omi::finished_work, que ni siquiera se inicializ\u00f3, porque cre\u00edamos que est\u00e1bamos en hw_restart. Establezca in_hw_restart en verdadero solo si el firmware se est\u00e1 ejecutando; entonces, sabremos que el firmware se carg\u00f3 correctamente y no entraremos en el bucle de reintentos."
    }
  ],
  "id": "CVE-2025-38121",
  "lastModified": "2025-07-03T15:13:53.147",
  "metrics": {},
  "published": "2025-07-03T09:15:26.170",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/960c7e6d388034d219dafffa6da0a5c2ccd5ff30"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a26ec8e16958b6dd37dac9daf5fb6978fe0cb0b8"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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