{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-49427", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.569Z", "datePublished": "2025-02-26T02:12:47.692Z", "dateUpdated": "2026-05-23T15:22:15.615Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:22:15.615Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/mediatek: Remove clk_disable in mtk_iommu_remove\n\nAfter the commit b34ea31fe013 (\"iommu/mediatek: Always enable the clk on\nresume\"), the iommu clock is controlled by the runtime callback.\nthus remove the clk control in the mtk_iommu_remove.\n\nOtherwise, it will warning like:\n\necho 14018000.iommu > /sys/bus/platform/drivers/mtk-iommu/unbind\n\n[ 51.413044] ------------[ cut here ]------------\n[ 51.413648] vpp0_smi_iommu already disabled\n[ 51.414233] WARNING: CPU: 2 PID: 157 at */v5.15-rc1/kernel/mediatek/\n drivers/clk/clk.c:952 clk_core_disable+0xb0/0xb8\n[ 51.417174] Hardware name: MT8195V/C(ENG) (DT)\n[ 51.418635] pc : clk_core_disable+0xb0/0xb8\n[ 51.419177] lr : clk_core_disable+0xb0/0xb8\n...\n[ 51.429375] Call trace:\n[ 51.429694] clk_core_disable+0xb0/0xb8\n[ 51.430193] clk_core_disable_lock+0x24/0x40\n[ 51.430745] clk_disable+0x20/0x30\n[ 51.431189] mtk_iommu_remove+0x58/0x118\n[ 51.431705] platform_remove+0x28/0x60\n[ 51.432197] device_release_driver_internal+0x110/0x1f0\n[ 51.432873] device_driver_detach+0x18/0x28\n[ 51.433418] unbind_store+0xd4/0x108\n[ 51.433886] drv_attr_store+0x24/0x38\n[ 51.434363] sysfs_kf_write+0x40/0x58\n[ 51.434843] kernfs_fop_write_iter+0x164/0x1e0"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/mtk_iommu.c"], "versions": [{"version": "b34ea31fe013569d42b7e8681ef3f717f77c5b72", "lessThan": "053465ab20dcd324a43a1811ee98e5721e6a3e65", "status": "affected", "versionType": "git"}, {"version": "b34ea31fe013569d42b7e8681ef3f717f77c5b72", "lessThan": "9b3bd97acb4f8954b8a43a5d63ed9050d463b4e1", "status": "affected", "versionType": "git"}, {"version": "b34ea31fe013569d42b7e8681ef3f717f77c5b72", "lessThan": "6eaa046c696c83542c56765cdde564d9818ff1fb", "status": "affected", "versionType": "git"}, {"version": "b34ea31fe013569d42b7e8681ef3f717f77c5b72", "lessThan": "98df772bdd1c4ce717a26289efea15cbbe4b64ed", "status": "affected", "versionType": "git"}, {"version": "5cad9e2caa9613fdcd246bd4ebf0ffbec1cba2ca", "status": "affected", "versionType": "git"}, {"version": "5.12.4", "lessThan": "5.13", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/mtk_iommu.c"], "versions": [{"version": "5.13", "status": "affected"}, {"version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.46", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.14", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.3", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "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": "5.13", "versionEndExcluding": "5.15.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "5.17.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "5.18.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "5.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12.4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/053465ab20dcd324a43a1811ee98e5721e6a3e65"}, {"url": "https://git.kernel.org/stable/c/9b3bd97acb4f8954b8a43a5d63ed9050d463b4e1"}, {"url": "https://git.kernel.org/stable/c/6eaa046c696c83542c56765cdde564d9818ff1fb"}, {"url": "https://git.kernel.org/stable/c/98df772bdd1c4ce717a26289efea15cbbe4b64ed"}], "title": "iommu/mediatek: Remove clk_disable in mtk_iommu_remove", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "05F5E7D4-7FEF-4517-98E8-A1717719A5EB", "versionEndExcluding": "5.15.46", "versionStartIncluding": "5.12.4", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "15E2DD33-2255-4B76-9C15-04FF8CBAB252", "versionEndExcluding": "5.17.14", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8E122216-2E9E-4B3E-B7B8-D575A45BA3C2", "versionEndExcluding": "5.18.3", "versionStartIncluding": "5.18", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/mediatek: Remove clk_disable in mtk_iommu_remove\n\nAfter the commit b34ea31fe013 (\"iommu/mediatek: Always enable the clk on\nresume\"), the iommu clock is controlled by the runtime callback.\nthus remove the clk control in the mtk_iommu_remove.\n\nOtherwise, it will warning like:\n\necho 14018000.iommu > /sys/bus/platform/drivers/mtk-iommu/unbind\n\n[ 51.413044] ------------[ cut here ]------------\n[ 51.413648] vpp0_smi_iommu already disabled\n[ 51.414233] WARNING: CPU: 2 PID: 157 at */v5.15-rc1/kernel/mediatek/\n drivers/clk/clk.c:952 clk_core_disable+0xb0/0xb8\n[ 51.417174] Hardware name: MT8195V/C(ENG) (DT)\n[ 51.418635] pc : clk_core_disable+0xb0/0xb8\n[ 51.419177] lr : clk_core_disable+0xb0/0xb8\n...\n[ 51.429375] Call trace:\n[ 51.429694] clk_core_disable+0xb0/0xb8\n[ 51.430193] clk_core_disable_lock+0x24/0x40\n[ 51.430745] clk_disable+0x20/0x30\n[ 51.431189] mtk_iommu_remove+0x58/0x118\n[ 51.431705] platform_remove+0x28/0x60\n[ 51.432197] device_release_driver_internal+0x110/0x1f0\n[ 51.432873] device_driver_detach+0x18/0x28\n[ 51.433418] unbind_store+0xd4/0x108\n[ 51.433886] drv_attr_store+0x24/0x38\n[ 51.434363] sysfs_kf_write+0x40/0x58\n[ 51.434843] kernfs_fop_write_iter+0x164/0x1e0"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iommu/mediatek: eliminar clk_disable en mtk_iommu_remove Despu\u00e9s de el commit b34ea31fe013 (\"iommu/mediatek: habilitar siempre clk al reanudar\"), el reloj de iommu est\u00e1 controlado por la devoluci\u00f3n de llamada en tiempo de ejecuci\u00f3n. por lo tanto, elimine el control clk en mtk_iommu_remove. De lo contrario, aparecer\u00e1 una advertencia como: echo 14018000.iommu > /sys/bus/platform/drivers/mtk-iommu/unbind [ 51.413044] ------------[ cortar aqu\u00ed ]------------ [ 51.413648] vpp0_smi_iommu already disabled [ 51.414233] WARNING: CPU: 2 PID: 157 at */v5.15-rc1/kernel/mediatek/ drivers/clk/clk.c:952 clk_core_disable+0xb0/0xb8 [ 51.417174] Hardware name: MT8195V/C(ENG) (DT) [ 51.418635] pc : clk_core_disable+0xb0/0xb8 [ 51.419177] lr : clk_core_disable+0xb0/0xb8 ... [ 51.429375] Call trace: [ 51.429694] clk_core_disable+0xb0/0xb8 [ 51.430193] clk_core_disable_lock+0x24/0x40 [ 51.430745] clk_disable+0x20/0x30 [ 51.431189] mtk_iommu_remove+0x58/0x118 [ 51.431705] platform_remove+0x28/0x60 [ 51.432197] device_release_driver_internal+0x110/0x1f0 [ 51.432873] device_driver_detach+0x18/0x28 [ 51.433418] unbind_store+0xd4/0x108 [ 51.433886] drv_attr_store+0x24/0x38 [ 51.434363] sysfs_kf_write+0x40/0x58 [ 51.434843] kernfs_fop_write_iter+0x164/0x1e0 "}], "id": "CVE-2022-49427", "lastModified": "2025-10-22T17:27:55.193", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-26T07:01:19.187", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/053465ab20dcd324a43a1811ee98e5721e6a3e65"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6eaa046c696c83542c56765cdde564d9818ff1fb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/98df772bdd1c4ce717a26289efea15cbbe4b64ed"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9b3bd97acb4f8954b8a43a5d63ed9050d463b4e1"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: iommu/mediatek: Remove clk_disable in mtk_iommu_remove", "id": "2348259", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348259"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\niommu/mediatek: Remove clk_disable in mtk_iommu_remove\nAfter the commit b34ea31fe013 (\"iommu/mediatek: Always enable the clk on\nresume\"), the iommu clock is controlled by the runtime callback.\nthus remove the clk control in the mtk_iommu_remove.\nOtherwise, it will warning like:\necho 14018000.iommu > /sys/bus/platform/drivers/mtk-iommu/unbind\n[ 51.413044] ------------[ cut here ]------------\n[ 51.413648] vpp0_smi_iommu already disabled\n[ 51.414233] WARNING: CPU: 2 PID: 157 at */v5.15-rc1/kernel/mediatek/\ndrivers/clk/clk.c:952 clk_core_disable+0xb0/0xb8\n[ 51.417174] Hardware name: MT8195V/C(ENG) (DT)\n[ 51.418635] pc : clk_core_disable+0xb0/0xb8\n[ 51.419177] lr : clk_core_disable+0xb0/0xb8\n...\n[ 51.429375] Call trace:\n[ 51.429694] clk_core_disable+0xb0/0xb8\n[ 51.430193] clk_core_disable_lock+0x24/0x40\n[ 51.430745] clk_disable+0x20/0x30\n[ 51.431189] mtk_iommu_remove+0x58/0x118\n[ 51.431705] platform_remove+0x28/0x60\n[ 51.432197] device_release_driver_internal+0x110/0x1f0\n[ 51.432873] device_driver_detach+0x18/0x28\n[ 51.433418] unbind_store+0xd4/0x108\n[ 51.433886] drv_attr_store+0x24/0x38\n[ 51.434363] sysfs_kf_write+0x40/0x58\n[ 51.434843] kernfs_fop_write_iter+0x164/0x1e0"], "name": "CVE-2022-49427", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49427\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49427\nhttps://lore.kernel.org/linux-cve-announce/2025022655-CVE-2022-49427-f29d@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-13T21:07:11.852658+00:00", "updated": "2025-07-13T21:07:11.852713+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}