CVE-2026-90060 (GCVE-0-2026-90060)
Vulnerability from cvelistv5
Published
2026-09-17 16:05
Modified
2026-10-21 12:49
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: control: Don't add invalid kcontrols to LED layer The kcontrol LED state layer tries to track the all associated kcontrol elements with naive assumptions that they are readable. But one can create a write-only element that has no get callback (even a user element can do it), and this may lead to a NULL dereference at the call chain of snd_ctl_led_notify(), as found by syzkaller. For avoiding the Oops, add a sanity check of the kcontrol's info and get callbacks, and just skip the invalid kcontrols before assigning the kctl to the LED layer.
References
Impacted products
Vendor Product Version
Linux Linux Version: 22d8de62f11b287b279f1d4473a78c7d5e53e7bc
Version: 22d8de62f11b287b279f1d4473a78c7d5e53e7bc
Version: 22d8de62f11b287b279f1d4473a78c7d5e53e7bc
Version: 22d8de62f11b287b279f1d4473a78c7d5e53e7bc
Version: 22d8de62f11b287b279f1d4473a78c7d5e53e7bc
Version: 22d8de62f11b287b279f1d4473a78c7d5e53e7bc
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{
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          "programFiles": [
            "sound/core/control_led.c"
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      ],
      "cpeApplicability": [
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          "nodes": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: control: Don\u0027t add invalid kcontrols to LED layer\n\nThe kcontrol LED state layer tries to track the all associated\nkcontrol elements with naive assumptions that they are readable.\nBut one can create a write-only element that has no get callback (even\na user element can do it), and this may lead to a NULL dereference at\nthe call chain of snd_ctl_led_notify(), as found by syzkaller.\n\nFor avoiding the Oops, add a sanity check of the kcontrol\u0027s info and\nget callbacks, and just skip the invalid kcontrols before assigning\nthe kctl to the LED layer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:49:38.739Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6e152cbfac3a2a62f79df7d23d621917c20367eb"
        },
        {
          "url": "https://git.kernel.org/stable/c/3b8a540b36aa064822c701e4e0a1dea2cd4ec5b0"
        },
        {
          "url": "https://git.kernel.org/stable/c/3d20cd049fc5f51f80e24a2db7a3cf00593c79e4"
        },
        {
          "url": "https://git.kernel.org/stable/c/2f0c97b1a32fba8e81a69f6231aa0b3c9b6bc581"
        },
        {
          "url": "https://git.kernel.org/stable/c/18c08f84ca483029f04e426ec7ca3b5d3684cf22"
        },
        {
          "url": "https://git.kernel.org/stable/c/74e3b979ce8b78a690f8b94ccf2e2c965f7f5c11"
        }
      ],
      "title": "ALSA: control: Don\u0027t add invalid kcontrols to LED layer",
      "x_generator": {
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      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90060",
    "datePublished": "2026-09-17T16:05:44.515Z",
    "dateReserved": "2026-09-11T19:38:34.784Z",
    "dateUpdated": "2026-10-21T12:49:38.739Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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