In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
ASoC: cs35l34: drain threaded IRQ before runtime suspend<\/p>\n
cs35l34_runtime_suspend() currently switches the codec into
\nregcache_cache_only(true), asserts reset low, and powers the device off
\nwithout first quiescing the threaded IRQ registered by
\ndevm_request_threaded_irq(). That leaves a window where
\ncs35l34_irq_thread() can still run after suspend has removed live
\nhardware access.<\/p>\n
A 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..4 after cache_only has been
\nenabled, ignores the regmap_read() failures, and can still execute the
\nPROT_RELEASE_CTL release sequence or the BST fault power-down writes.<\/p>\n
Use disable_irq() before entering cache_only\/reset-low\/power-off so any
\nin-flight threaded handler is drained and no new IRQ thread can run
\nwhile the device is suspended. Re-enable the IRQ only after
\nruntime_resume() has restored live register access with regcache_sync().
\nSince probe only logs request_threaded_irq() failures and keeps going,
\ntrack whether the IRQ was actually installed before disabling or
\nre-enabling it.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
ASoC: cs35l34: drain threaded IRQ before runtime suspend<\/p>\n
cs35l34_runtime_suspend() currently switches the codec into
\nregcache_cach<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24632","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=24632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}