Skip to content
Heist/ feed
Unrated

ASoC: cs35l34: drain threaded IRQ before runtime suspend

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: ASoC: cs35l34: drain threaded IRQ before runtime suspend cs35l34_runtime_suspend() currently switches the codec into regcache_cache_only(true), asserts reset low, and powers the device off without first quiescing the threaded IRQ registered by devm_request_threaded_irq(). That leaves a window where cs35l34_irq_thread() can still run after suspend has removed live hardware 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..4 after cache_only has been enabled, ignores the regmap_read() failures, and can still execute the PROT_RELEASE_CTL release sequence or the BST fault power-down writes. Use disable_irq() before entering cache_only/reset-low/power-off so any in-flight threaded handler is drained and no new IRQ thread can run while the device is suspended. Re-enable the IRQ only after runtime_resume() has restored live register access with regcache_sync(). Since probe only logs request_threaded_irq() failures and keeps going, track whether the IRQ was actually installed before disabling or re-enabling it.

Announced Group revision 1
Original source ↗

CVE-2026-89945

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-2026-89945

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": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
        "lessThan": "3be8380fb14d602cd833e5852e6d83c1e7eb1ceb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
        "lessThan": "96982734e765c13c3db02067e1d5784682085f5c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
        "lessThan": "5b063739619990d5de0c94c85d6e5be14e7cbdfe",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
        "lessThan": "f4bfd755c52dfa7584e6c9374206b71b8895c997",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
        "lessThan": "4fe8a91a9266f1321c2d31ce67940a4e8b93559e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
        "lessThan": "5a4fe7a87841af23ba80bae31b80355b16926cf4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
        "lessThan": "07a86575edc308e66b6c8873ed4a93ef3a063e55",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
        "lessThan": "4105a4c0678b2808fc8046b60321b4f1cc7dae75",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "sound/soc/codecs/cs35l34.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.10"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.10",
        "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/cs35l34.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-89945

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#36385 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-89945 · Revision 1Source updated