Answer in brief
CVE-2026-89946 records a Unknown severity vulnerability in ASoC: cs35l33: drain threaded IRQ before runtime suspend. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 <d07799302721d381aef834fac8a11d196894eccb || >=3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 <5b5311427e54d9c0d07178ee42df68ba44c2d5ca || >=3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 <a04722542c76ce861031384480825afded8cc4f4 || >=3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 <614c2616ea677abfbed917a92bdc5141efff3536 || >=3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 <6ae98918240585eb2ad32b097c4810f4e2dabe88 || >=3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 <6e369bc46663b4bfce3d5f8b8ed08e71ecea13a2 || >=3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 <84cf6acd01a1ec8f30276578a039216327af782e || >=3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 <e074c12c428c633e079154301207a6079a208583 | d07799302721d381aef834fac8a11d196894eccb, 5b5311427e54d9c0d07178ee42df68ba44c2d5ca, a04722542c76ce861031384480825afded8cc4f4, 614c2616ea677abfbed917a92bdc5141efff3536, 6ae98918240585eb2ad32b097c4810f4e2dabe88, 6e369bc46663b4bfce3d5f8b8ed08e71ecea13a2, 84cf6acd01a1ec8f30276578a039216327af782e, e074c12c428c633e079154301207a6079a208583 |
| Linux/Linuxgeneric | 4.8 | Not reported |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
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.
Quoted source text, attributed separately from HOL analysis.