CVE-2026-90060

Full vulnerability record from the local CVENow database.

Description

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.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-09-17 17:16:54.723000

Last modified

2026-10-21 13:20:35.593000

View original CVE JSON

{
  "id": "CVE-2026-90060",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-17T17:16:54.723",
  "lastModified": "2026-10-21T13:20:35.593",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: control: Don't 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's info and\nget callbacks, and just skip the invalid kcontrols before assigning\nthe kctl to the LED layer."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "sound/core/control_led.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "22d8de62f11b287b279f1d4473a78c7d5e53e7bc",
              "lessThan": "6e152cbfac3a2a62f79df7d23d621917c20367eb",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "22d8de62f11b287b279f1d4473a78c7d5e53e7bc",
              "lessThan": "3b8a540b36aa064822c701e4e0a1dea2cd4ec5b0",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "22d8de62f11b287b279f1d4473a78c7d5e53e7bc",
              "lessThan": "3d20cd049fc5f51f80e24a2db7a3cf00593c79e4",
              "versionType": "git",
              "status": "affected"
            },
            {
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              "versionType": "git",
              "status": "affected"
            },
            {
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              "lessThan": "18c08f84ca483029f04e426ec7ca3b5d3684cf22",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "22d8de62f11b287b279f1d4473a78c7d5e53e7bc",
              "lessThan": "74e3b979ce8b78a690f8b94ccf2e2c965f7f5c11",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "sound/core/control_led.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "5.13",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "5.13",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.188",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.160",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.110",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.52",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.6",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/18c08f84ca483029f04e426ec7ca3b5d3684cf22",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2f0c97b1a32fba8e81a69f6231aa0b3c9b6bc581",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3b8a540b36aa064822c701e4e0a1dea2cd4ec5b0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6e152cbfac3a2a62f79df7d23d621917c20367eb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/74e3b979ce8b78a690f8b94ccf2e2c965f7f5c11",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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  ]
}