{"cve":"CVE-2026-89946","nvd":{"published":"2026-09-16T11:17:04.547","modified":"2026-10-19T09:18:40.500","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: cs35l33: drain threaded IRQ before runtime suspend\n\ncs35l33_runtime_suspend() currently switches the codec into\nregcache_cache_only(true) and powers it down without first quiescing the\nthreaded IRQ registered by devm_request_threaded_irq(). That leaves a\nwindow where cs35l33_irq_thread() can still run after suspend has closed\noff live register access.\n\nA running system can reach this during runtime PM while the driver still\nhas critical fault IRQs unmasked. If the threaded handler runs in that\nwindow, it reads volatile INT_STATUS_1/2 after cache_only has been\nenabled, ignores the regmap_read() failures, and can still drive the\nAMP_SHORT_RLS, CAL_ERR_RLS, OTE_RLS, and OTW_RLS release paths.\n\nUse disable_irq() before entering cache_only/power-off so any in-flight\nthreaded handler is drained and no new IRQ thread can run during the\nsuspended state. Re-enable the IRQ only after runtime_resume() has\nrestored live register access with regcache_sync(). Since probe only\nwarns if devm_request_threaded_irq() fails, track whether the IRQ was\nactually installed before disabling or re-enabling it.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/5b5311427e54d9c0d07178ee42df68ba44c2d5ca","https://git.kernel.org/stable/c/614c2616ea677abfbed917a92bdc5141efff3536","https://git.kernel.org/stable/c/6ae98918240585eb2ad32b097c4810f4e2dabe88","https://git.kernel.org/stable/c/6e369bc46663b4bfce3d5f8b8ed08e71ecea13a2","https://git.kernel.org/stable/c/84cf6acd01a1ec8f30276578a039216327af782e"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:54:41.405518556+00:00"},"epss":{"cve":"CVE-2026-89946","score":0.00211,"percentile":0.11186,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}