ASoC: cs35l33: drain threaded IRQ before runtime suspend

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89946
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-16 11:17:04 UTC
Updated2026-09-16 11:17:04 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 d07799302721d381aef834fac8a11d196894eccb git Not specified
CNA Linux Linux affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 5b5311427e54d9c0d07178ee42df68ba44c2d5ca git Not specified
CNA Linux Linux affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 a04722542c76ce861031384480825afded8cc4f4 git Not specified
CNA Linux Linux affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 614c2616ea677abfbed917a92bdc5141efff3536 git Not specified
CNA Linux Linux affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 6ae98918240585eb2ad32b097c4810f4e2dabe88 git Not specified
CNA Linux Linux affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 6e369bc46663b4bfce3d5f8b8ed08e71ecea13a2 git Not specified
CNA Linux Linux affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 84cf6acd01a1ec8f30276578a039216327af782e git Not specified
CNA Linux Linux affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 e074c12c428c633e079154301207a6079a208583 git Not specified
CNA Linux Linux affected 4.8 Not specified
CNA Linux Linux unaffected 4.8 semver Not specified
CNA Linux Linux unaffected 5.10.270 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.221 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.188 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.157 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.110 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.51 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.5 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/d07799302721d381aef834fac8a11d196894eccb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5b5311427e54d9c0d07178ee42df68ba44c2d5ca 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/614c2616ea677abfbed917a92bdc5141efff3536 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e074c12c428c633e079154301207a6079a208583 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6e369bc46663b4bfce3d5f8b8ed08e71ecea13a2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6ae98918240585eb2ad32b097c4810f4e2dabe88 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a04722542c76ce861031384480825afded8cc4f4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/84cf6acd01a1ec8f30276578a039216327af782e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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