{"api_version":"1","generated_at":"2026-10-02T03:44:39+00:00","cve":"CVE-2026-89945","urls":{"html":"https://cve.report/CVE-2026-89945","api":"https://cve.report/api/cve/CVE-2026-89945.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89945","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89945"},"summary":{"title":"ASoC: cs35l34: drain threaded IRQ before runtime suspend","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: cs35l34: drain threaded IRQ before runtime suspend\n\ncs35l34_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.\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..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.\n\nUse 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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-16 11:17:04","updated_at":"2026-09-16 11:17:04"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/5b063739619990d5de0c94c85d6e5be14e7cbdfe","name":"https://git.kernel.org/stable/c/5b063739619990d5de0c94c85d6e5be14e7cbdfe","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4fe8a91a9266f1321c2d31ce67940a4e8b93559e","name":"https://git.kernel.org/stable/c/4fe8a91a9266f1321c2d31ce67940a4e8b93559e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4105a4c0678b2808fc8046b60321b4f1cc7dae75","name":"https://git.kernel.org/stable/c/4105a4c0678b2808fc8046b60321b4f1cc7dae75","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5a4fe7a87841af23ba80bae31b80355b16926cf4","name":"https://git.kernel.org/stable/c/5a4fe7a87841af23ba80bae31b80355b16926cf4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f4bfd755c52dfa7584e6c9374206b71b8895c997","name":"https://git.kernel.org/stable/c/f4bfd755c52dfa7584e6c9374206b71b8895c997","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3be8380fb14d602cd833e5852e6d83c1e7eb1ceb","name":"https://git.kernel.org/stable/c/3be8380fb14d602cd833e5852e6d83c1e7eb1ceb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/96982734e765c13c3db02067e1d5784682085f5c","name":"https://git.kernel.org/stable/c/96982734e765c13c3db02067e1d5784682085f5c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/07a86575edc308e66b6c8873ed4a93ef3a063e55","name":"https://git.kernel.org/stable/c/07a86575edc308e66b6c8873ed4a93ef3a063e55","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89945","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89945","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c1124c09e1035cabdbc17d4538ae6f922086fec9 3be8380fb14d602cd833e5852e6d83c1e7eb1ceb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c1124c09e1035cabdbc17d4538ae6f922086fec9 96982734e765c13c3db02067e1d5784682085f5c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c1124c09e1035cabdbc17d4538ae6f922086fec9 5b063739619990d5de0c94c85d6e5be14e7cbdfe git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c1124c09e1035cabdbc17d4538ae6f922086fec9 f4bfd755c52dfa7584e6c9374206b71b8895c997 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c1124c09e1035cabdbc17d4538ae6f922086fec9 4fe8a91a9266f1321c2d31ce67940a4e8b93559e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c1124c09e1035cabdbc17d4538ae6f922086fec9 5a4fe7a87841af23ba80bae31b80355b16926cf4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c1124c09e1035cabdbc17d4538ae6f922086fec9 07a86575edc308e66b6c8873ed4a93ef3a063e55 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c1124c09e1035cabdbc17d4538ae6f922086fec9 4105a4c0678b2808fc8046b60321b4f1cc7dae75 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.10","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.10 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.270 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.221 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.188 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.157 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.51 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.5 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["sound/soc/codecs/cs35l34.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3be8380fb14d602cd833e5852e6d83c1e7eb1ceb","status":"affected","version":"c1124c09e1035cabdbc17d4538ae6f922086fec9","versionType":"git"},{"lessThan":"96982734e765c13c3db02067e1d5784682085f5c","status":"affected","version":"c1124c09e1035cabdbc17d4538ae6f922086fec9","versionType":"git"},{"lessThan":"5b063739619990d5de0c94c85d6e5be14e7cbdfe","status":"affected","version":"c1124c09e1035cabdbc17d4538ae6f922086fec9","versionType":"git"},{"lessThan":"f4bfd755c52dfa7584e6c9374206b71b8895c997","status":"affected","version":"c1124c09e1035cabdbc17d4538ae6f922086fec9","versionType":"git"},{"lessThan":"4fe8a91a9266f1321c2d31ce67940a4e8b93559e","status":"affected","version":"c1124c09e1035cabdbc17d4538ae6f922086fec9","versionType":"git"},{"lessThan":"5a4fe7a87841af23ba80bae31b80355b16926cf4","status":"affected","version":"c1124c09e1035cabdbc17d4538ae6f922086fec9","versionType":"git"},{"lessThan":"07a86575edc308e66b6c8873ed4a93ef3a063e55","status":"affected","version":"c1124c09e1035cabdbc17d4538ae6f922086fec9","versionType":"git"},{"lessThan":"4105a4c0678b2808fc8046b60321b4f1cc7dae75","status":"affected","version":"c1124c09e1035cabdbc17d4538ae6f922086fec9","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["sound/soc/codecs/cs35l34.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.10"},{"lessThan":"4.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.270","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.221","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.188","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.51","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.270","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.51","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.5","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"4.10","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: cs35l34: drain threaded IRQ before runtime suspend\n\ncs35l34_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.\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..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.\n\nUse 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."}],"providerMetadata":{"dateUpdated":"2026-09-16T10:32:31.951Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/3be8380fb14d602cd833e5852e6d83c1e7eb1ceb"},{"url":"https://git.kernel.org/stable/c/96982734e765c13c3db02067e1d5784682085f5c"},{"url":"https://git.kernel.org/stable/c/5b063739619990d5de0c94c85d6e5be14e7cbdfe"},{"url":"https://git.kernel.org/stable/c/f4bfd755c52dfa7584e6c9374206b71b8895c997"},{"url":"https://git.kernel.org/stable/c/4fe8a91a9266f1321c2d31ce67940a4e8b93559e"},{"url":"https://git.kernel.org/stable/c/5a4fe7a87841af23ba80bae31b80355b16926cf4"},{"url":"https://git.kernel.org/stable/c/07a86575edc308e66b6c8873ed4a93ef3a063e55"},{"url":"https://git.kernel.org/stable/c/4105a4c0678b2808fc8046b60321b4f1cc7dae75"}],"title":"ASoC: cs35l34: drain threaded IRQ before runtime suspend","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-89945","datePublished":"2026-09-16T10:32:31.951Z","dateReserved":"2026-09-11T19:38:34.777Z","dateUpdated":"2026-09-16T10:32:31.951Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-16 11:17:04","lastModifiedDate":"2026-09-16 11:17:04","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"89945","Ordinal":"1","Title":"ASoC: cs35l34: drain threaded IRQ before runtime suspend","CVE":"CVE-2026-89945","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89945","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: cs35l34: drain threaded IRQ before runtime suspend\n\ncs35l34_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.\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..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.\n\nUse 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.","Type":"Description","Title":"ASoC: cs35l34: drain threaded IRQ before runtime suspend"}]}}}