{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "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 </NMI>\n <TASK>\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 </NMI>\n <IRQ>\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."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "sound/firewire/amdtp-stream.c"
               ],
               "versions": [
                  {
                     "version": "7ba5ca32fe6e",
                     "lessThan": "7c07220cf634",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "7ba5ca32fe6e",
                     "lessThan": "b239a37d68e8",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "7ba5ca32fe6e",
                     "lessThan": "f5043e69aeb2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "7ba5ca32fe6e",
                     "lessThan": "36c255db5a25",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "7ba5ca32fe6e",
                     "lessThan": "3dab73ab925a",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "sound/firewire/amdtp-stream.c"
               ],
               "versions": [
                  {
                     "version": "5.14",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.14",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.165",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.104",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.45",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.4",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/7c07220cf634002f93a87ca2252a32766850f2d1"
            },
            {
               "url": "https://git.kernel.org/stable/c/b239a37d68e8bc59f9516444da222841e3b13ba9"
            },
            {
               "url": "https://git.kernel.org/stable/c/f5043e69aeb2786f32e84132817a007a6430aa7d"
            },
            {
               "url": "https://git.kernel.org/stable/c/36c255db5a25edd42d1aca48e38b8e95ee5fd9ef"
            },
            {
               "url": "https://git.kernel.org/stable/c/3dab73ab925a51ab05543b491bf17463a48ca323"
            }
         ],
         "title": "Revert \"ALSA: firewire-lib: operate for period elapse event in process context\"",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-42274",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}