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ALSA: control: Don't add invalid kcontrols to LED layer

Type: advisorySources: OSV

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.

Products
Kernel
Affected versions
Not specified
Fixed versions
6.1.188, 6.12.110, 6.18.52, 6.6.160, 7.2.6
CVEs
CVE-2026-90060
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 01:24 UTC · Revision 1

Source evidence

ALSA: control: Don't add invalid kcontrols to LED layer

core-osv · Original source

Published 17 Sept 2026, 16:05 UTC

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.

osv:CVE-2026-90060

Kernel

Fixed versions: 6.1.188, 6.6.160, 6.12.110, 6.18.52, 7.2.6

Complete source record
{
  "id": "fbdbb2c564843618d24c291198b8c677aae3b1194a9584622df9ad885062e2af",
  "url": "https://osv.dev/vulnerability/CVE-2026-90060",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ALSA: control: Don't add invalid kcontrols to LED layer",
    "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.",
    "evidence": "osv:CVE-2026-90060",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "6.1.188",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.160",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.110",
            "evidence": "/affected/1/ranges"
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          {
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          },
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        "affected_versions": []
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    "severity": "unknown",
    "structured": {
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90060.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.857336341Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/18c08f84ca483029f04e426ec7ca3b5d3684cf22",
        "https://git.kernel.org/stable/c/2f0c97b1a32fba8e81a69f6231aa0b3c9b6bc581",
        "https://git.kernel.org/stable/c/3b8a540b36aa064822c701e4e0a1dea2cd4ec5b0",
        "https://git.kernel.org/stable/c/3d20cd049fc5f51f80e24a2db7a3cf00593c79e4",
        "https://git.kernel.org/stable/c/6e152cbfac3a2a62f79df7d23d621917c20367eb",
        "https://git.kernel.org/stable/c/74e3b979ce8b78a690f8b94ccf2e2c965f7f5c11",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90060.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-90060",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
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        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90060.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-90060",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 491597,
  "published_at": "2026-09-17T16:05:44.515+00:00"
}