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ASoC: cs35l33: drain threaded IRQ before runtime suspend

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: ASoC: cs35l33: drain threaded IRQ before runtime suspend cs35l33_runtime_suspend() currently switches the codec into regcache_cache_only(true) and powers it down without first quiescing the threaded IRQ registered by devm_request_threaded_irq(). That leaves a window where cs35l33_irq_thread() can still run after suspend has closed off live register access. A running system can reach this during runtime PM while the driver still has critical fault IRQs unmasked. If the threaded handler runs in that window, it reads volatile INT_STATUS_1/2 after cache_only has been enabled, ignores the regmap_read() failures, and can still drive the AMP_SHORT_RLS, CAL_ERR_RLS, OTE_RLS, and OTW_RLS release paths. Use disable_irq() before entering cache_only/power-off so any in-flight threaded handler is drained and no new IRQ thread can run during the suspended state. Re-enable the IRQ only after runtime_resume() has restored live register access with regcache_sync(). Since probe only warns if devm_request_threaded_irq() fails, track whether the IRQ was actually installed before disabling or re-enabling it.

Announced Source revision 1
Original source ↗

CVE-2026-89946

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-89946

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8",
        "lessThan": "d07799302721d381aef834fac8a11d196894eccb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8",
        "lessThan": "5b5311427e54d9c0d07178ee42df68ba44c2d5ca",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8",
        "lessThan": "a04722542c76ce861031384480825afded8cc4f4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8",
        "lessThan": "614c2616ea677abfbed917a92bdc5141efff3536",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8",
        "lessThan": "6ae98918240585eb2ad32b097c4810f4e2dabe88",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8",
        "lessThan": "6e369bc46663b4bfce3d5f8b8ed08e71ecea13a2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8",
        "lessThan": "84cf6acd01a1ec8f30276578a039216327af782e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8",
        "lessThan": "e074c12c428c633e079154301207a6079a208583",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "sound/soc/codecs/cs35l33.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.8"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.8",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.51",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.5",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "sound/soc/codecs/cs35l33.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-89946

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#36387 · Revision 1
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