Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 before d07799302721d381aef834fac8a11d196894eccb; affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 before 5b5311427e54d9c0d07178ee42df68ba44c2d5ca; affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 before a04722542c76ce861031384480825afded8cc4f4; affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 before 614c2616ea677abfbed917a92bdc5141efff3536; affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 before 6ae98918240585eb2ad32b097c4810f4e2dabe88; affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 before 6e369bc46663b4bfce3d5f8b8ed08e71ecea13a2; affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 before 84cf6acd01a1ec8f30276578a039216327af782e; affected 3333cb7187b9c8d28f7a6405bbe9cec7a10efdc8 before e074c12c428c633e079154301207a6079a208583 |
| Linux / Linux | affected 4.8; unaffected 0 before 4.8; unaffected 5.10.270 through 5.10.*; unaffected 5.15.221 through 5.15.*; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.51 through 6.18.*; unaffected 7.2.5 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/d07799302721d381aef834fac8a11d196894eccb
- https://git.kernel.org/stable/c/5b5311427e54d9c0d07178ee42df68ba44c2d5ca
- https://git.kernel.org/stable/c/a04722542c76ce861031384480825afded8cc4f4
- 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
- https://git.kernel.org/stable/c/e074c12c428c633e079154301207a6079a208583