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CVE-2026-64212

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: mld: don't dereference a pointer before NULL checking it

In iwl_mld_remove_link, the link->fw_id is saved at the beginning of the function so we have it after we freed the link.

But the link pointer can be NULL, and is not checked when the fw_id is stored.

Fix it by simply freeing the link at the end of the function.

fFixes: 0e66a39f4f0e ("wifi: iwlwifi: fix potential use after free in iwl_mld_remove_link()")

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
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  "published": "2026-07-24T16:16:48.843",
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mld: don't dereference a pointer before NULL checking it\n\nIn iwl_mld_remove_link, the link->fw_id is saved at the beginning of the\nfunction so we have it after we freed the link.\n\nBut the link pointer can be NULL, and is not checked when the fw_id is\nstored.\n\nFix it by simply freeing the link at the end of the function.\n\nfFixes: 0e66a39f4f0e (\"wifi: iwlwifi: fix potential use after free in iwl_mld_remove_link()\")"
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