{"id":"CVE-2024-42319","state":"PUBLISHED","title":"mailbox: mtk-cmdq: Move devm_mbox_controller_register() after devm_pm_runtime_enable()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: mtk-cmdq: Move devm_mbox_controller_register() after devm_pm_runtime_enable()\n\nWhen mtk-cmdq unbinds, a WARN_ON message with condition\npm_runtime_get_sync() < 0 occurs.\n\nAccording to the call tracei below:\n  cmdq_mbox_shutdown\n  mbox_free_channel\n  mbox_controller_unregister\n  __devm_mbox_controller_unregister\n  ...\n\nThe root cause can be deduced to be calling pm_runtime_get_sync() after\ncalling pm_runtime_disable() as observed below:\n1. CMDQ driver uses devm_mbox_controller_register() in cmdq_probe()\n   to bind the cmdq device to the mbox_controller, so\n   devm_mbox_controller_unregister() will automatically unregister\n   the device bound to the mailbox controller when the device-managed\n   resource is removed. That means devm_mbox_controller_unregister()\n   and cmdq_mbox_shoutdown() will be called after cmdq_remove().\n2. CMDQ driver also uses devm_pm_runtime_enable() in cmdq_probe() after\n   devm_mbox_controller_register(), so that devm_pm_runtime_disable()\n   will be called after cmdq_remove(), but before\n   devm_mbox_controller_unregister().\n\nTo fix this problem, cmdq_probe() needs to move\ndevm_mbox_controller_register() after devm_pm_runtime_enable() to make\ndevm_pm_runtime_disable() be called after\ndevm_mbox_controller_unregister().","publishedAt":"2024-08-17T09:09:31.867Z","updatedAt":"2026-05-11T20:30:09.601Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"623a6143a845bd485b00ba684f0ccef11835edab","status":"affected","lessThan":"1403991a40b94438a2acc749bf05c117abdb34f9","versionType":"git"},{"version":"623a6143a845bd485b00ba684f0ccef11835edab","status":"affected","lessThan":"d00df6700ad10974a7e20646956f4ff22cdbe0ec","versionType":"git"},{"version":"623a6143a845bd485b00ba684f0ccef11835edab","status":"affected","lessThan":"11fa625b45faf0649118b9deaf2d31c86ac41911","versionType":"git"},{"version":"623a6143a845bd485b00ba684f0ccef11835edab","status":"affected","lessThan":"a8bd68e4329f9a0ad1b878733e0f80be6a971649","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mailbox/mtk-cmdq-mailbox.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","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":"6.10.3","status":"unaffected","lessThanOrEqual":"6.10.*","versionType":"semver"},{"version":"6.11","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mailbox/mtk-cmdq-mailbox.c"]}],"references":["https://git.kernel.org/stable/c/1403991a40b94438a2acc749bf05c117abdb34f9","https://git.kernel.org/stable/c/d00df6700ad10974a7e20646956f4ff22cdbe0ec","https://git.kernel.org/stable/c/11fa625b45faf0649118b9deaf2d31c86ac41911","https://git.kernel.org/stable/c/a8bd68e4329f9a0ad1b878733e0f80be6a971649","https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:47.831Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/42xxx/CVE-2024-42319.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-42319","state":"PUBLISHED","datePublished":"2024-08-17T09:09:31.867Z","dateUpdated":"2026-05-11T20:30:09.601Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-07-30T07:40:12.278Z"},"containers":{"cna":{"title":"mailbox: mtk-cmdq: Move devm_mbox_controller_register() after devm_pm_runtime_enable()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: mtk-cmdq: Move devm_mbox_controller_register() after devm_pm_runtime_enable()\n\nWhen mtk-cmdq unbinds, a WARN_ON message with condition\npm_runtime_get_sync() < 0 occurs.\n\nAccording to the call tracei below:\n  cmdq_mbox_shutdown\n  mbox_free_channel\n  mbox_controller_unregister\n  __devm_mbox_controller_unregister\n  ...\n\nThe root cause can be deduced to be calling pm_runtime_get_sync() after\ncalling pm_runtime_disable() as observed below:\n1. CMDQ driver uses devm_mbox_controller_register() in cmdq_probe()\n   to bind the cmdq device to the mbox_controller, so\n   devm_mbox_controller_unregister() will automatically unregister\n   the device bound to the mailbox controller when the device-managed\n   resource is removed. That means devm_mbox_controller_unregister()\n   and cmdq_mbox_shoutdown() will be called after cmdq_remove().\n2. CMDQ driver also uses devm_pm_runtime_enable() in cmdq_probe() after\n   devm_mbox_controller_register(), so that devm_pm_runtime_disable()\n   will be called after cmdq_remove(), but before\n   devm_mbox_controller_unregister().\n\nTo fix this problem, cmdq_probe() needs to move\ndevm_mbox_controller_register() after devm_pm_runtime_enable() to make\ndevm_pm_runtime_disable() be called after\ndevm_mbox_controller_unregister()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"623a6143a845bd485b00ba684f0ccef11835edab","status":"affected","lessThan":"1403991a40b94438a2acc749bf05c117abdb34f9","versionType":"git"},{"version":"623a6143a845bd485b00ba684f0ccef11835edab","status":"affected","lessThan":"d00df6700ad10974a7e20646956f4ff22cdbe0ec","versionType":"git"},{"version":"623a6143a845bd485b00ba684f0ccef11835edab","status":"affected","lessThan":"11fa625b45faf0649118b9deaf2d31c86ac41911","versionType":"git"},{"version":"623a6143a845bd485b00ba684f0ccef11835edab","status":"affected","lessThan":"a8bd68e4329f9a0ad1b878733e0f80be6a971649","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mailbox/mtk-cmdq-mailbox.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","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":"6.10.3","status":"unaffected","lessThanOrEqual":"6.10.*","versionType":"semver"},{"version":"6.11","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mailbox/mtk-cmdq-mailbox.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/1403991a40b94438a2acc749bf05c117abdb34f9"},{"url":"https://git.kernel.org/stable/c/d00df6700ad10974a7e20646956f4ff22cdbe0ec"},{"url":"https://git.kernel.org/stable/c/11fa625b45faf0649118b9deaf2d31c86ac41911"},{"url":"https://git.kernel.org/stable/c/a8bd68e4329f9a0ad1b878733e0f80be6a971649"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:30:09.601Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.1.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.6.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.10.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.11"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-42319","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T16:09:32.477080Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-09-12T17:33:26.095Z"}},{"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":"2025-11-03T20:38:39.733Z"}}]}}}