cve-2024-42274
Vulnerability from cvelistv5
Published
2024-08-17 08:54
Modified
2024-12-19 09:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Revert "ALSA: firewire-lib: operate for period elapse event in process context" Commit 7ba5ca32fe6e ("ALSA: firewire-lib: operate for period elapse event in process context") removed the process context workqueue from amdtp_domain_stream_pcm_pointer() and update_pcm_pointers() to remove its overhead. With RME Fireface 800, this lead to a regression since Kernels 5.14.0, causing an AB/BA deadlock competition for the substream lock with eventual system freeze under ALSA operation: thread 0: * (lock A) acquire substream lock by snd_pcm_stream_lock_irq() in snd_pcm_status64() * (lock B) wait for tasklet to finish by calling tasklet_unlock_spin_wait() in tasklet_disable_in_atomic() in ohci_flush_iso_completions() of ohci.c thread 1: * (lock B) enter tasklet * (lock A) attempt to acquire substream lock, waiting for it to be released: snd_pcm_stream_lock_irqsave() in snd_pcm_period_elapsed() in update_pcm_pointers() in process_ctx_payloads() in process_rx_packets() of amdtp-stream.c ? tasklet_unlock_spin_wait </NMI> <TASK> ohci_flush_iso_completions firewire_ohci amdtp_domain_stream_pcm_pointer snd_firewire_lib snd_pcm_update_hw_ptr0 snd_pcm snd_pcm_status64 snd_pcm ? native_queued_spin_lock_slowpath </NMI> <IRQ> _raw_spin_lock_irqsave snd_pcm_period_elapsed snd_pcm process_rx_packets snd_firewire_lib irq_target_callback snd_firewire_lib handle_it_packet firewire_ohci context_tasklet firewire_ohci Restore the process context work queue to prevent deadlock AB/BA deadlock competition for ALSA substream lock of snd_pcm_stream_lock_irq() in snd_pcm_status64() and snd_pcm_stream_lock_irqsave() in snd_pcm_period_elapsed(). revert commit 7ba5ca32fe6e ("ALSA: firewire-lib: operate for period elapse event in process context") Replace inline description to prevent future deadlock.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/36c255db5a25edd42d1aca48e38b8e95ee5fd9ef
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3dab73ab925a51ab05543b491bf17463a48ca323
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7c07220cf634002f93a87ca2252a32766850f2d1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b239a37d68e8bc59f9516444da222841e3b13ba9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f5043e69aeb2786f32e84132817a007a6430aa7d
Impacted products
Vendor Product Version
Linux Linux Version: 7ba5ca32fe6e8d2e153fb5602997336517b34743
Version: 7ba5ca32fe6e8d2e153fb5602997336517b34743
Version: 7ba5ca32fe6e8d2e153fb5602997336517b34743
Version: 7ba5ca32fe6e8d2e153fb5602997336517b34743
Version: 7ba5ca32fe6e8d2e153fb5602997336517b34743
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   Linux Linux Version: 5.14
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                "timestamp": "2024-09-10T16:12:01.822950Z",
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          "url": "https://git.kernel.org/stable/c/3dab73ab925a51ab05543b491bf17463a48ca323"
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    "dateReserved": "2024-07-30T07:40:12.260Z",
    "dateUpdated": "2024-12-19T09:15:25.666Z",
    "state": "PUBLISHED"
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Con RME Fireface 800, esto condujo a una regresi\u00f3n desde Kernels 5.14.0, lo que provoc\u00f3 una competencia de punto muerto AB/BA para el bloqueo de substream con una eventual congelaci\u00f3n del sistema bajo la operaci\u00f3n ALSA: subproceso 0: * (bloqueo A) adquiere el bloqueo de substream mediante snd_pcm_stream_lock_irq() en snd_pcm_status64() * (bloqueo B) espere a que finalice el tasklet llamando a tasklet_unlock_spin_wait() en tasklet_disable_in_atomic() en ohci_flush_iso_completions() del subproceso 1 de ohci.c: * (bloqueo B) ingrese al tasklet * (bloqueo A) intente adquirir el subflujo bloquear, esperando a que se libere: snd_pcm_stream_lock_irqsave() en snd_pcm_period_elapsed() en update_pcm_pointers() en Process_ctx_payloads() en Process_rx_packets() de amdtp-stream.c? tasklet_unlock_spin_wait   ohci_flush_iso_completions firewire_ohci amdtp_domain_stream_pcm_pointer snd_firewire_lib snd_pcm_update_hw_ptr0 snd_pcm snd_pcm_status64 snd_pcm ? nativo_queued_spin_lock_slowpath   _raw_spin_lock_irqsave snd_pcm_period_elapsed snd_pcm Process_rx_packets snd_firewire_lib irq_target_callback snd_firewire_lib handle_it_packet firewire_ohci context_tasklet firewire_ohci Restaurar la cola de trabajo del contexto del proceso para evitar un punto muerto Competencia de punto muerto AB/BA para el bloqueo de subtransmisi\u00f3n ALSA de snd_pcm_stream_lock_irq() en snd_pcm_status64() y snd_pcm_stream_lock_irqsave() en snd_pcm_period_elapsed(). revertir el commit 7ba5ca32fe6e (\\\"ALSA: firewire-lib: operar durante el evento de per\u00edodo transcurrido en el contexto del proceso\\\") Reemplace la descripci\u00f3n en l\u00ednea para evitar futuros interbloqueos.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/36c255db5a25edd42d1aca48e38b8e95ee5fd9ef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3dab73ab925a51ab05543b491bf17463a48ca323\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7c07220cf634002f93a87ca2252a32766850f2d1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b239a37d68e8bc59f9516444da222841e3b13ba9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f5043e69aeb2786f32e84132817a007a6430aa7d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
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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.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T09:15:25.666Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-42274\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T09:15:25.666Z\", \"dateReserved\": \"2024-07-30T07:40:12.260Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-17T08:54:28.169Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.