{"api_version":"1","generated_at":"2026-11-10T18:43:43+00:00","cve":"CVE-2026-99214","urls":{"html":"https://cve.report/CVE-2026-99214","api":"https://cve.report/api/cve/CVE-2026-99214.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-99214","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-99214"},"summary":{"title":"drm/vc4: hdmi: Move packet RAM enable to PM runtime","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: hdmi: Move packet RAM enable to PM runtime\n\nAudio can be triggered by the HPD handler and start up before video has\nbeen restored, calling vc4_hdmi_write_infoframe() for the audio infoframe.\nvc4_hdmi_write_infoframe() needs Packet RAM to be on to store the\ninfoframe, however, if the video hasn't been enabled,\nvc4_hdmi_encoder_post_crtc_enable() hasn't been called and therefore, the\nPacket RAM can be disabled by the time vc4_hdmi_write_infoframe() executes,\ncausing the following splat:\n\n[  201.570266] ------------[ cut here ]------------\n[  201.570293] Packet RAM has to be on to store the packet.\n[  201.570367] WARNING: drivers/gpu/drm/vc4/vc4_hdmi.c:683 at vc4_hdmi_write_infoframe+0x404/0x494 [vc4], CPU#0: wireplumber/1606\n[...]\n[  201.658650] Hardware name: Raspberry Pi 4 Model B Rev 1.5 (DT)\n[...]\n[  201.758499] Call trace:\n[  201.760967]  vc4_hdmi_write_infoframe+0x404/0x494 [vc4] (P)\n[  201.766607]  vc4_hdmi_write_audio_infoframe+0x1c/0x28 [vc4]\n[  201.772247]  write_infoframe+0xbc/0x140 [drm_display_helper]\n[  201.777975]  drm_atomic_helper_connector_hdmi_update_audio_infoframe+0x80/0xdc [drm_display_helper]\n[  201.787140]  vc4_hdmi_audio_prepare+0x4ac/0x570 [vc4]\n[  201.792252]  drm_connector_hdmi_audio_prepare+0x24/0x30 [drm_display_helper]\n[  201.799390]  hdmi_codec_prepare+0x100/0x160 [snd_soc_hdmi_codec]\n[  201.805471]  snd_soc_pcm_dai_prepare+0xd4/0x100 [snd_soc_core]\n[  201.811375]  __soc_pcm_prepare+0x60/0x12c [snd_soc_core]\n[  201.816752]  soc_pcm_prepare+0x34/0x58 [snd_soc_core]\n[  201.821863]  snd_pcm_do_prepare+0x70/0x8c [snd_pcm]\n[  201.826798]  snd_pcm_action_nonatomic+0xe4/0x174 [snd_pcm]\n[  201.832350]  snd_pcm_prepare+0xc8/0xd8 [snd_pcm]\n[  201.837021]  snd_pcm_common_ioctl+0x458/0x614 [snd_pcm]\n[  201.842308]  snd_pcm_ioctl+0x30/0x48 [snd_pcm]\n[  201.846802]  __arm64_sys_ioctl+0x88/0xd8\n[  201.850769]  invoke_syscall+0x48/0xf4\n[  201.854470]  el0_svc_common+0x80/0xd8\n[  201.858171]  do_el0_svc+0x1c/0x28\n[  201.861520]  el0_svc+0x3c/0xb0\n[  201.864605]  el0t_64_sync_handler+0x68/0xdc\n[  201.868834]  el0t_64_sync+0x198/0x19c\n[  201.872536] ---[ end trace 0000000000000000 ]---\n\nConsidering that Packet RAM enable is essentially a power management\nconfiguration, move its enabling/disabling to the Runtime PM hooks.\n\nNote that post_crtc_disable() still stops all infoframes, but keeps Packet\nRAM enabled, leaving it to be disabled by runtime suspend.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-28 11:17:42","updated_at":"2026-10-30 13:21:53"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/03cf08ed84fd43cd7d90696736dcde15f5eefca6","name":"https://git.kernel.org/stable/c/03cf08ed84fd43cd7d90696736dcde15f5eefca6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3f57b34485dc01e5a2db60a89a6ae5439a897e53","name":"https://git.kernel.org/stable/c/3f57b34485dc01e5a2db60a89a6ae5439a897e53","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6b03e354526f6bad60ed3a7f08fec8b7d29d2f27","name":"https://git.kernel.org/stable/c/6b03e354526f6bad60ed3a7f08fec8b7d29d2f27","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6a987992c78e2e04f71e685d1c589f8ea2151fa2","name":"https://git.kernel.org/stable/c/6a987992c78e2e04f71e685d1c589f8ea2151fa2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-99214","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-99214","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b47a72f30768ffe76e105b3e91ad7022003e8504 03cf08ed84fd43cd7d90696736dcde15f5eefca6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b47a72f30768ffe76e105b3e91ad7022003e8504 6b03e354526f6bad60ed3a7f08fec8b7d29d2f27 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b47a72f30768ffe76e105b3e91ad7022003e8504 6a987992c78e2e04f71e685d1c589f8ea2151fa2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b47a72f30768ffe76e105b3e91ad7022003e8504 3f57b34485dc01e5a2db60a89a6ae5439a897e53 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.11","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.115 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.59 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.13 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"99214","cve":"CVE-2026-99214","epss":"0.001570000","percentile":"0.048120000","score_date":"2026-11-01","updated_at":"2026-11-02 00:05:55"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/vc4/vc4_hdmi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"03cf08ed84fd43cd7d90696736dcde15f5eefca6","status":"affected","version":"b47a72f30768ffe76e105b3e91ad7022003e8504","versionType":"git"},{"lessThan":"6b03e354526f6bad60ed3a7f08fec8b7d29d2f27","status":"affected","version":"b47a72f30768ffe76e105b3e91ad7022003e8504","versionType":"git"},{"lessThan":"6a987992c78e2e04f71e685d1c589f8ea2151fa2","status":"affected","version":"b47a72f30768ffe76e105b3e91ad7022003e8504","versionType":"git"},{"lessThan":"3f57b34485dc01e5a2db60a89a6ae5439a897e53","status":"affected","version":"b47a72f30768ffe76e105b3e91ad7022003e8504","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/vc4/vc4_hdmi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.115","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.59","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.115","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.59","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.13","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"6.11","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: hdmi: Move packet RAM enable to PM runtime\n\nAudio can be triggered by the HPD handler and start up before video has\nbeen restored, calling vc4_hdmi_write_infoframe() for the audio infoframe.\nvc4_hdmi_write_infoframe() needs Packet RAM to be on to store the\ninfoframe, however, if the video hasn't been enabled,\nvc4_hdmi_encoder_post_crtc_enable() hasn't been called and therefore, the\nPacket RAM can be disabled by the time vc4_hdmi_write_infoframe() executes,\ncausing the following splat:\n\n[  201.570266] ------------[ cut here ]------------\n[  201.570293] Packet RAM has to be on to store the packet.\n[  201.570367] WARNING: drivers/gpu/drm/vc4/vc4_hdmi.c:683 at vc4_hdmi_write_infoframe+0x404/0x494 [vc4], CPU#0: wireplumber/1606\n[...]\n[  201.658650] Hardware name: Raspberry Pi 4 Model B Rev 1.5 (DT)\n[...]\n[  201.758499] Call trace:\n[  201.760967]  vc4_hdmi_write_infoframe+0x404/0x494 [vc4] (P)\n[  201.766607]  vc4_hdmi_write_audio_infoframe+0x1c/0x28 [vc4]\n[  201.772247]  write_infoframe+0xbc/0x140 [drm_display_helper]\n[  201.777975]  drm_atomic_helper_connector_hdmi_update_audio_infoframe+0x80/0xdc [drm_display_helper]\n[  201.787140]  vc4_hdmi_audio_prepare+0x4ac/0x570 [vc4]\n[  201.792252]  drm_connector_hdmi_audio_prepare+0x24/0x30 [drm_display_helper]\n[  201.799390]  hdmi_codec_prepare+0x100/0x160 [snd_soc_hdmi_codec]\n[  201.805471]  snd_soc_pcm_dai_prepare+0xd4/0x100 [snd_soc_core]\n[  201.811375]  __soc_pcm_prepare+0x60/0x12c [snd_soc_core]\n[  201.816752]  soc_pcm_prepare+0x34/0x58 [snd_soc_core]\n[  201.821863]  snd_pcm_do_prepare+0x70/0x8c [snd_pcm]\n[  201.826798]  snd_pcm_action_nonatomic+0xe4/0x174 [snd_pcm]\n[  201.832350]  snd_pcm_prepare+0xc8/0xd8 [snd_pcm]\n[  201.837021]  snd_pcm_common_ioctl+0x458/0x614 [snd_pcm]\n[  201.842308]  snd_pcm_ioctl+0x30/0x48 [snd_pcm]\n[  201.846802]  __arm64_sys_ioctl+0x88/0xd8\n[  201.850769]  invoke_syscall+0x48/0xf4\n[  201.854470]  el0_svc_common+0x80/0xd8\n[  201.858171]  do_el0_svc+0x1c/0x28\n[  201.861520]  el0_svc+0x3c/0xb0\n[  201.864605]  el0t_64_sync_handler+0x68/0xdc\n[  201.868834]  el0t_64_sync+0x198/0x19c\n[  201.872536] ---[ end trace 0000000000000000 ]---\n\nConsidering that Packet RAM enable is essentially a power management\nconfiguration, move its enabling/disabling to the Runtime PM hooks.\n\nNote that post_crtc_disable() still stops all infoframes, but keeps Packet\nRAM enabled, leaving it to be disabled by runtime suspend."}],"providerMetadata":{"dateUpdated":"2026-10-30T12:43:00.909Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/03cf08ed84fd43cd7d90696736dcde15f5eefca6"},{"url":"https://git.kernel.org/stable/c/6b03e354526f6bad60ed3a7f08fec8b7d29d2f27"},{"url":"https://git.kernel.org/stable/c/6a987992c78e2e04f71e685d1c589f8ea2151fa2"},{"url":"https://git.kernel.org/stable/c/3f57b34485dc01e5a2db60a89a6ae5439a897e53"}],"title":"drm/vc4: hdmi: Move packet RAM enable to PM runtime","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-99214","datePublished":"2026-10-28T10:36:07.867Z","dateReserved":"2026-09-25T10:25:14.401Z","dateUpdated":"2026-10-30T12:43:00.909Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-28 11:17:42","lastModifiedDate":"2026-10-30 13:21:53","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"99214","Ordinal":"1","Title":"drm/vc4: hdmi: Move packet RAM enable to PM runtime","CVE":"CVE-2026-99214","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"99214","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: hdmi: Move packet RAM enable to PM runtime\n\nAudio can be triggered by the HPD handler and start up before video has\nbeen restored, calling vc4_hdmi_write_infoframe() for the audio infoframe.\nvc4_hdmi_write_infoframe() needs Packet RAM to be on to store the\ninfoframe, however, if the video hasn't been enabled,\nvc4_hdmi_encoder_post_crtc_enable() hasn't been called and therefore, the\nPacket RAM can be disabled by the time vc4_hdmi_write_infoframe() executes,\ncausing the following splat:\n\n[  201.570266] ------------[ cut here ]------------\n[  201.570293] Packet RAM has to be on to store the packet.\n[  201.570367] WARNING: drivers/gpu/drm/vc4/vc4_hdmi.c:683 at vc4_hdmi_write_infoframe+0x404/0x494 [vc4], CPU#0: wireplumber/1606\n[...]\n[  201.658650] Hardware name: Raspberry Pi 4 Model B Rev 1.5 (DT)\n[...]\n[  201.758499] Call trace:\n[  201.760967]  vc4_hdmi_write_infoframe+0x404/0x494 [vc4] (P)\n[  201.766607]  vc4_hdmi_write_audio_infoframe+0x1c/0x28 [vc4]\n[  201.772247]  write_infoframe+0xbc/0x140 [drm_display_helper]\n[  201.777975]  drm_atomic_helper_connector_hdmi_update_audio_infoframe+0x80/0xdc [drm_display_helper]\n[  201.787140]  vc4_hdmi_audio_prepare+0x4ac/0x570 [vc4]\n[  201.792252]  drm_connector_hdmi_audio_prepare+0x24/0x30 [drm_display_helper]\n[  201.799390]  hdmi_codec_prepare+0x100/0x160 [snd_soc_hdmi_codec]\n[  201.805471]  snd_soc_pcm_dai_prepare+0xd4/0x100 [snd_soc_core]\n[  201.811375]  __soc_pcm_prepare+0x60/0x12c [snd_soc_core]\n[  201.816752]  soc_pcm_prepare+0x34/0x58 [snd_soc_core]\n[  201.821863]  snd_pcm_do_prepare+0x70/0x8c [snd_pcm]\n[  201.826798]  snd_pcm_action_nonatomic+0xe4/0x174 [snd_pcm]\n[  201.832350]  snd_pcm_prepare+0xc8/0xd8 [snd_pcm]\n[  201.837021]  snd_pcm_common_ioctl+0x458/0x614 [snd_pcm]\n[  201.842308]  snd_pcm_ioctl+0x30/0x48 [snd_pcm]\n[  201.846802]  __arm64_sys_ioctl+0x88/0xd8\n[  201.850769]  invoke_syscall+0x48/0xf4\n[  201.854470]  el0_svc_common+0x80/0xd8\n[  201.858171]  do_el0_svc+0x1c/0x28\n[  201.861520]  el0_svc+0x3c/0xb0\n[  201.864605]  el0t_64_sync_handler+0x68/0xdc\n[  201.868834]  el0t_64_sync+0x198/0x19c\n[  201.872536] ---[ end trace 0000000000000000 ]---\n\nConsidering that Packet RAM enable is essentially a power management\nconfiguration, move its enabling/disabling to the Runtime PM hooks.\n\nNote that post_crtc_disable() still stops all infoframes, but keeps Packet\nRAM enabled, leaving it to be disabled by runtime suspend.","Type":"Description","Title":"drm/vc4: hdmi: Move packet RAM enable to PM runtime"}]}}}