{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-48894", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-21T06:06:23.290Z", "datePublished": "2024-08-21T06:10:26.515Z", "dateUpdated": "2024-09-12T17:32:54.892Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-08-21T06:10:26.515Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/arm-smmu-v3: Don't unregister on shutdown\n\nSimilar to SMMUv2, this driver calls iommu_device_unregister() from the\nshutdown path, which removes the IOMMU groups with no coordination\nwhatsoever with their users - shutdown methods are optional in device\ndrivers. This can lead to NULL pointer dereferences in those drivers'\nDMA API calls, or worse.\n\nInstead of calling the full arm_smmu_device_remove() from\narm_smmu_device_shutdown(), let's pick only the relevant function call -\narm_smmu_device_disable() - more or less the reverse of\narm_smmu_device_reset() - and call just that from the shutdown path."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c"], "versions": [{"version": "57365a04c921", "lessThan": "ead3e6c79479", "status": "affected", "versionType": "git"}, {"version": "57365a04c921", "lessThan": "32ea2c57dc21", "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/iommu/arm/arm-smmu-v3/arm-smmu-v3.c"], "versions": [{"version": "6.1", "status": "affected"}, {"version": "0", "lessThan": "6.1", "status": "unaffected", "versionType": "custom"}, {"version": "6.1.7", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/ead3e6c79479890444c777fd329afc125fecde48"}, {"url": "https://git.kernel.org/stable/c/32ea2c57dc216b6ad8125fa680d31daa5d421c95"}], "title": "iommu/arm-smmu-v3: Don't unregister on shutdown", "x_generator": {"engine": "bippy-c9c4e1df01b2"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48894", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:04:12.466609Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:32:54.892Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48894", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:04:12.466609Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:11.998Z"}}], "cna": {"title": "iommu/arm-smmu-v3: Don't unregister on shutdown", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "57365a04c921", "lessThan": "ead3e6c79479", "versionType": "git"}, {"status": "affected", "version": "57365a04c921", "lessThan": "32ea2c57dc21", "versionType": "git"}], "programFiles": ["drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.1"}, {"status": "unaffected", "version": "0", "lessThan": "6.1", "versionType": "custom"}, {"status": "unaffected", "version": "6.1.7", "versionType": "custom", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/ead3e6c79479890444c777fd329afc125fecde48"}, {"url": "https://git.kernel.org/stable/c/32ea2c57dc216b6ad8125fa680d31daa5d421c95"}], "x_generator": {"engine": "bippy-c9c4e1df01b2"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/arm-smmu-v3: Don't unregister on shutdown\n\nSimilar to SMMUv2, this driver calls iommu_device_unregister() from the\nshutdown path, which removes the IOMMU groups with no coordination\nwhatsoever with their users - shutdown methods are optional in device\ndrivers. This can lead to NULL pointer dereferences in those drivers'\nDMA API calls, or worse.\n\nInstead of calling the full arm_smmu_device_remove() from\narm_smmu_device_shutdown(), let's pick only the relevant function call -\narm_smmu_device_disable() - more or less the reverse of\narm_smmu_device_reset() - and call just that from the shutdown path."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-08-21T06:10:26.515Z"}}}, "cveMetadata": {"cveId": "CVE-2022-48894", "state": "PUBLISHED", "dateUpdated": "2024-09-12T17:32:54.892Z", "dateReserved": "2024-08-21T06:06:23.290Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-08-21T06:10:26.515Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "043B7290-EDB8-4ACE-A87A-8FA7D130B565", "versionEndExcluding": "6.1.7", "versionStartIncluding": "6.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*", "matchCriteriaId": "FF501633-2F44-4913-A8EE-B021929F49F6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*", "matchCriteriaId": "2BDA597B-CAC1-4DF0-86F0-42E142C654E9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*", "matchCriteriaId": "725C78C9-12CE-406F-ABE8-0813A01D66E8", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/arm-smmu-v3: Don't unregister on shutdown\n\nSimilar to SMMUv2, this driver calls iommu_device_unregister() from the\nshutdown path, which removes the IOMMU groups with no coordination\nwhatsoever with their users - shutdown methods are optional in device\ndrivers. This can lead to NULL pointer dereferences in those drivers'\nDMA API calls, or worse.\n\nInstead of calling the full arm_smmu_device_remove() from\narm_smmu_device_shutdown(), let's pick only the relevant function call -\narm_smmu_device_disable() - more or less the reverse of\narm_smmu_device_reset() - and call just that from the shutdown path."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iommu/arm-smmu-v3: no cancelar el registro al apagar. Similar a SMMUv2, este controlador llama a iommu_device_unregister() desde la ruta de apagado, lo que elimina los grupos IOMMU sin coordinaci\u00f3n alguna. con sus usuarios: los m\u00e9todos de apagado son opcionales en los controladores de dispositivos. Esto puede provocar desreferencias de puntero NULL en las llamadas API DMA de esos controladores, o algo peor. En lugar de llamar al arm_smmu_device_remove() completo desde arm_smmu_device_shutdown(), seleccionemos solo la llamada a la funci\u00f3n relevante - arm_smmu_device_disable() - m\u00e1s o menos lo inverso de arm_smmu_device_reset() - y llamemos solo eso desde la ruta de apagado."}], "id": "CVE-2022-48894", "lastModified": "2024-09-11T15:58:04.533", "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": "2024-08-21T07:15:05.527", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/32ea2c57dc216b6ad8125fa680d31daa5d421c95"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ead3e6c79479890444c777fd329afc125fecde48"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: iommu/arm-smmu-v3: Don't unregister on shutdown", "id": "2306415", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2306415"}, "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/arm-smmu-v3: Don't unregister on shutdown\nSimilar to SMMUv2, this driver calls iommu_device_unregister() from the\nshutdown path, which removes the IOMMU groups with no coordination\nwhatsoever with their users - shutdown methods are optional in device\ndrivers. This can lead to NULL pointer dereferences in those drivers'\nDMA API calls, or worse.\nInstead of calling the full arm_smmu_device_remove() from\narm_smmu_device_shutdown(), let's pick only the relevant function call -\narm_smmu_device_disable() - more or less the reverse of\narm_smmu_device_reset() - and call just that from the shutdown path."], "name": "CVE-2022-48894", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "2024-08-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48894\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48894\nhttps://lore.kernel.org/linux-cve-announce/2024082110-CVE-2022-48894-7997@gregkh/T"], "threat_severity": "Moderate"}