{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99214", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.401Z", "datePublished": "2026-10-28T10:36:07.867Z", "dateUpdated": "2026-10-28T10:36:07.867Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-28T10:36:07.867Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/vc4/vc4_hdmi.c"], "versions": [{"version": "b47a72f30768ffe76e105b3e91ad7022003e8504", "lessThan": "6b03e354526f6bad60ed3a7f08fec8b7d29d2f27", "status": "affected", "versionType": "git"}, {"version": "b47a72f30768ffe76e105b3e91ad7022003e8504", "lessThan": "6a987992c78e2e04f71e685d1c589f8ea2151fa2", "status": "affected", "versionType": "git"}, {"version": "b47a72f30768ffe76e105b3e91ad7022003e8504", "lessThan": "3f57b34485dc01e5a2db60a89a6ae5439a897e53", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/vc4/vc4_hdmi.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.59", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.13", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.18.59"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.2.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.3"}]}]}], "references": [{"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"}}}}

{}

{"affected": [{"affectedData": [{"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": "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": "6.18.*", "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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-99214", "lastModified": "2026-10-28T11:17:42.887", "metrics": {}, "published": "2026-10-28T11:17:42.887", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3f57b34485dc01e5a2db60a89a6ae5439a897e53"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6a987992c78e2e04f71e685d1c589f8ea2151fa2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6b03e354526f6bad60ed3a7f08fec8b7d29d2f27"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b47a72f30768ffe76e105b3e91ad7022003e8504,6b03e354526f6bad60ed3a7f08fec8b7d29d2f27)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b47a72f30768ffe76e105b3e91ad7022003e8504,6a987992c78e2e04f71e685d1c589f8ea2151fa2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b47a72f30768ffe76e105b3e91ad7022003e8504,3f57b34485dc01e5a2db60a89a6ae5439a897e53)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.59,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.13,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b47a72f30768ffe76e105b3e91ad7022003e8504,6b03e354526f6bad60ed3a7f08fec8b7d29d2f27)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b47a72f30768ffe76e105b3e91ad7022003e8504,6a987992c78e2e04f71e685d1c589f8ea2151fa2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b47a72f30768ffe76e105b3e91ad7022003e8504,3f57b34485dc01e5a2db60a89a6ae5439a897e53)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.59,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.13,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-28T12:45:16.178997+00:00", "updated": "2026-10-28T16:30:15.577290+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-665"]}