{"id":"CVE-2024-42274","summary":"Revert \"ALSA: firewire-lib: operate for period elapse event in process context\"","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"ALSA: firewire-lib: operate for period elapse event in process context\"\n\nCommit 7ba5ca32fe6e (\"ALSA: firewire-lib: operate for period elapse event\nin process context\") removed the process context workqueue from\namdtp_domain_stream_pcm_pointer() and update_pcm_pointers() to remove\nits overhead.\n\nWith RME Fireface 800, this lead to a regression since\nKernels 5.14.0, causing an AB/BA deadlock competition for the\nsubstream lock with eventual system freeze under ALSA operation:\n\nthread 0:\n    * (lock A) acquire substream lock by\n\tsnd_pcm_stream_lock_irq() in\n\tsnd_pcm_status64()\n    * (lock B) wait for tasklet to finish by calling\n    \ttasklet_unlock_spin_wait() in\n\ttasklet_disable_in_atomic() in\n\tohci_flush_iso_completions() of ohci.c\n\nthread 1:\n    * (lock B) enter tasklet\n    * (lock A) attempt to acquire substream lock,\n    \twaiting for it to be released:\n\tsnd_pcm_stream_lock_irqsave() in\n    \tsnd_pcm_period_elapsed() in\n\tupdate_pcm_pointers() in\n\tprocess_ctx_payloads() in\n\tprocess_rx_packets() of amdtp-stream.c\n\n? tasklet_unlock_spin_wait\n \u003c/NMI\u003e\n \u003cTASK\u003e\nohci_flush_iso_completions firewire_ohci\namdtp_domain_stream_pcm_pointer snd_firewire_lib\nsnd_pcm_update_hw_ptr0 snd_pcm\nsnd_pcm_status64 snd_pcm\n\n? native_queued_spin_lock_slowpath\n \u003c/NMI\u003e\n \u003cIRQ\u003e\n_raw_spin_lock_irqsave\nsnd_pcm_period_elapsed snd_pcm\nprocess_rx_packets snd_firewire_lib\nirq_target_callback snd_firewire_lib\nhandle_it_packet firewire_ohci\ncontext_tasklet firewire_ohci\n\nRestore the process context work queue to prevent deadlock\nAB/BA deadlock competition for ALSA substream lock of\nsnd_pcm_stream_lock_irq() in snd_pcm_status64()\nand snd_pcm_stream_lock_irqsave() in snd_pcm_period_elapsed().\n\nrevert commit 7ba5ca32fe6e (\"ALSA: firewire-lib: operate for period\nelapse event in process context\")\n\nReplace inline description to prevent future deadlock.","modified":"2026-04-02T12:17:56.147550Z","published":"2024-08-17T08:54:28.169Z","related":["MGASA-2024-0309","MGASA-2024-0310","SUSE-SU-2024:3190-1","SUSE-SU-2024:3194-1","SUSE-SU-2024:3195-1","SUSE-SU-2024:3209-1","SUSE-SU-2024:3383-1","SUSE-SU-2024:3483-1","SUSE-SU-2025:20044-1","SUSE-SU-2025:20047-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42274.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/36c255db5a25edd42d1aca48e38b8e95ee5fd9ef"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3dab73ab925a51ab05543b491bf17463a48ca323"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7c07220cf634002f93a87ca2252a32766850f2d1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b239a37d68e8bc59f9516444da222841e3b13ba9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f5043e69aeb2786f32e84132817a007a6430aa7d"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42274.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-42274"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7ba5ca32fe6e8d2e153fb5602997336517b34743"},{"fixed":"7c07220cf634002f93a87ca2252a32766850f2d1"},{"fixed":"b239a37d68e8bc59f9516444da222841e3b13ba9"},{"fixed":"f5043e69aeb2786f32e84132817a007a6430aa7d"},{"fixed":"36c255db5a25edd42d1aca48e38b8e95ee5fd9ef"},{"fixed":"3dab73ab925a51ab05543b491bf17463a48ca323"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-42274.json"}}],"schema_version":"1.7.5"}