{"id":"CVE-2024-56683","state":"PUBLISHED","title":"drm/vc4: hdmi: Avoid hang with debug registers when suspended","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: hdmi: Avoid hang with debug registers when suspended\n\nTrying to read /sys/kernel/debug/dri/1/hdmi1_regs\nwhen the hdmi is disconnected results in a fatal system hang.\n\nThis is due to the pm suspend code disabling the dvp clock.\nThat is just a gate of the 108MHz clock in DVP_HT_RPI_MISC_CONFIG,\nwhich results in accesses hanging AXI bus.\n\nProtect against this.","publishedAt":"2024-12-28T09:46:11.183Z","updatedAt":"2026-05-23T15:55:54.003Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"25eb441d55d479581a65bcc9de88bc1d86bf76c1","status":"affected","lessThan":"0ea29bd7d9400d3629683244d609358ed1b12075","versionType":"git"},{"version":"25eb441d55d479581a65bcc9de88bc1d86bf76c1","status":"affected","lessThan":"c7d474974954d9af7e0092021223d58f2de128df","versionType":"git"},{"version":"25eb441d55d479581a65bcc9de88bc1d86bf76c1","status":"affected","lessThan":"16f351adf733a182224ad24916d7673aa6df02df","versionType":"git"},{"version":"25eb441d55d479581a65bcc9de88bc1d86bf76c1","status":"affected","lessThan":"74f21be9990a42dc2357bcf87a13e16c6998b90e","versionType":"git"},{"version":"25eb441d55d479581a65bcc9de88bc1d86bf76c1","status":"affected","lessThan":"223ee2567a55e4f80315c768d2969e6a3b9fb23d","versionType":"git"},{"version":"1da00a63f0e798f0fd0dcf623b16c16e13f93615","status":"affected","versionType":"git"},{"version":"f70c25cf34f91cc6f40e79a5b7565fd0272d7396","status":"affected","versionType":"git"},{"version":"5.18.18","status":"affected","lessThan":"5.19","versionType":"semver"},{"version":"5.19.2","status":"affected","lessThan":"5.20","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vc4/vc4_hdmi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.1.120","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.64","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.11.11","status":"unaffected","lessThanOrEqual":"6.11.*","versionType":"semver"},{"version":"6.12.2","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vc4/vc4_hdmi.c"]}],"references":["https://git.kernel.org/stable/c/0ea29bd7d9400d3629683244d609358ed1b12075","https://git.kernel.org/stable/c/c7d474974954d9af7e0092021223d58f2de128df","https://git.kernel.org/stable/c/16f351adf733a182224ad24916d7673aa6df02df","https://git.kernel.org/stable/c/74f21be9990a42dc2357bcf87a13e16c6998b90e","https://git.kernel.org/stable/c/223ee2567a55e4f80315c768d2969e6a3b9fb23d","https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:08:12.933Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/56xxx/CVE-2024-56683.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-56683","state":"PUBLISHED","datePublished":"2024-12-28T09:46:11.183Z","dateUpdated":"2026-05-23T15:55:54.003Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-27T15:00:39.846Z"},"containers":{"cna":{"title":"drm/vc4: hdmi: Avoid hang with debug registers when suspended","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: hdmi: Avoid hang with debug registers when suspended\n\nTrying to read /sys/kernel/debug/dri/1/hdmi1_regs\nwhen the hdmi is disconnected results in a fatal system hang.\n\nThis is due to the pm suspend code disabling the dvp clock.\nThat is just a gate of the 108MHz clock in DVP_HT_RPI_MISC_CONFIG,\nwhich results in accesses hanging AXI bus.\n\nProtect against this."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"25eb441d55d479581a65bcc9de88bc1d86bf76c1","status":"affected","lessThan":"0ea29bd7d9400d3629683244d609358ed1b12075","versionType":"git"},{"version":"25eb441d55d479581a65bcc9de88bc1d86bf76c1","status":"affected","lessThan":"c7d474974954d9af7e0092021223d58f2de128df","versionType":"git"},{"version":"25eb441d55d479581a65bcc9de88bc1d86bf76c1","status":"affected","lessThan":"16f351adf733a182224ad24916d7673aa6df02df","versionType":"git"},{"version":"25eb441d55d479581a65bcc9de88bc1d86bf76c1","status":"affected","lessThan":"74f21be9990a42dc2357bcf87a13e16c6998b90e","versionType":"git"},{"version":"25eb441d55d479581a65bcc9de88bc1d86bf76c1","status":"affected","lessThan":"223ee2567a55e4f80315c768d2969e6a3b9fb23d","versionType":"git"},{"version":"1da00a63f0e798f0fd0dcf623b16c16e13f93615","status":"affected","versionType":"git"},{"version":"f70c25cf34f91cc6f40e79a5b7565fd0272d7396","status":"affected","versionType":"git"},{"version":"5.18.18","status":"affected","lessThan":"5.19","versionType":"semver"},{"version":"5.19.2","status":"affected","lessThan":"5.20","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vc4/vc4_hdmi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.1.120","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.64","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.11.11","status":"unaffected","lessThanOrEqual":"6.11.*","versionType":"semver"},{"version":"6.12.2","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vc4/vc4_hdmi.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0ea29bd7d9400d3629683244d609358ed1b12075"},{"url":"https://git.kernel.org/stable/c/c7d474974954d9af7e0092021223d58f2de128df"},{"url":"https://git.kernel.org/stable/c/16f351adf733a182224ad24916d7673aa6df02df"},{"url":"https://git.kernel.org/stable/c/74f21be9990a42dc2357bcf87a13e16c6998b90e"},{"url":"https://git.kernel.org/stable/c/223ee2567a55e4f80315c768d2969e6a3b9fb23d"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:55:54.003Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.11.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.12.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18.18"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T20:52:29.934Z"}}]}}}