CVE-2021-47380

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-47380", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T14:58:30.812Z", "datePublished": "2024-05-21T15:03:42.325Z", "dateUpdated": "2026-08-05T08:47:32.385Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:47:32.385Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: amd_sfh: Fix potential NULL pointer dereference\n\ndevm_add_action_or_reset() can suddenly invoke amd_mp2_pci_remove() at\nregistration that will cause NULL pointer dereference since\ncorresponding data is not initialized yet. The patch moves\ninitialization of data before devm_add_action_or_reset().\n\nFound by Linux Driver Verification project (linuxtesting.org).\n\n[jkosina@suse.cz: rebase]"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable code is in amd_mp2_pci_probe for the onboard AMD Sensor Fusion Hub PCI device and is reached only via local driver probe/bind, not via network packets or a physically attached hotplug device.\nAC:L - An attacker who can apply memory pressure can make mid-probe allocations fail after DMA buffers are already allocated, reliably driving the broken cleanup path; no race or non-attacker-controlled hardware state is required.\nPR:L - Exploitation is assessed from a local unprivileged context on a system with the amd_sfh driver present; when privilege gating of PCI reprobe is ambiguous, the higher-severity Low value is required.\nUI:N - No separate victim action such as mounting a filesystem or opening a malicious file is required once probe runs under the attacker-influenced failure conditions.\nS:U - Impact remains within the kernel's own security authority; this is a host kernel memory-safety/DoS issue, not a VM escape or other cross-boundary impact.\nC:H - On probe failure after partial client init, amd_mp2_pci_remove double-frees DMA coherent allocations whose pointers were not cleared, yielding heap corruption that can be leveraged for arbitrary read primitives.\nI:H - The same double-free heap corruption provides a write/control-flow primitive surface consistent with treating exploitable memory corruption as High integrity impact.\nA:H - Both the mp2_ops NULL dereference on failed action registration and the double-free cleanup path cause kernel oops/panic and loss of system availability."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hid/amd-sfh-hid/amd_sfh_pcie.c"], "versions": [{"version": "4f567b9f8141a86c7d878fadf136e5d1408e3e61", "lessThan": "283e4bee701dfcd409dd293f19a268bb2bc8ff38", "status": "affected", "versionType": "git"}, {"version": "4f567b9f8141a86c7d878fadf136e5d1408e3e61", "lessThan": "d46ef750ed58cbeeba2d9a55c99231c30a172764", "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/hid/amd-sfh-hid/amd_sfh_pcie.c"], "versions": [{"version": "5.11", "status": "affected"}, {"version": "0", "lessThan": "5.11", "status": "unaffected", "versionType": "semver"}, {"version": "5.14.10", "lessThanOrEqual": "5.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15", "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": "5.11", "versionEndExcluding": "5.14.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "5.15"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/283e4bee701dfcd409dd293f19a268bb2bc8ff38"}, {"url": "https://git.kernel.org/stable/c/d46ef750ed58cbeeba2d9a55c99231c30a172764"}], "title": "HID: amd_sfh: Fix potential NULL pointer dereference", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47380", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-23T17:54:13.016769Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:15:14.096Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:32:08.652Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/283e4bee701dfcd409dd293f19a268bb2bc8ff38", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d46ef750ed58cbeeba2d9a55c99231c30a172764", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/283e4bee701dfcd409dd293f19a268bb2bc8ff38", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d46ef750ed58cbeeba2d9a55c99231c30a172764", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:32:08.652Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47380", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-23T17:54:13.016769Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-23T17:54:17.482Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "HID: amd_sfh: Fix potential NULL pointer dereference", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 7.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable code is in amd_mp2_pci_probe for the onboard AMD Sensor Fusion Hub PCI device and is reached only via local driver probe/bind, not via network packets or a physically attached hotplug device.\nAC:L - An attacker who can apply memory pressure can make mid-probe allocations fail after DMA buffers are already allocated, reliably driving the broken cleanup path; no race or non-attacker-controlled hardware state is required.\nPR:L - Exploitation is assessed from a local unprivileged context on a system with the amd_sfh driver present; when privilege gating of PCI reprobe is ambiguous, the higher-severity Low value is required.\nUI:N - No separate victim action such as mounting a filesystem or opening a malicious file is required once probe runs under the attacker-influenced failure conditions.\nS:U - Impact remains within the kernel's own security authority; this is a host kernel memory-safety/DoS issue, not a VM escape or other cross-boundary impact.\nC:H - On probe failure after partial client init, amd_mp2_pci_remove double-frees DMA coherent allocations whose pointers were not cleared, yielding heap corruption that can be leveraged for arbitrary read primitives.\nI:H - The same double-free heap corruption provides a write/control-flow primitive surface consistent with treating exploitable memory corruption as High integrity impact.\nA:H - Both the mp2_ops NULL dereference on failed action registration and the double-free cleanup path cause kernel oops/panic and loss of system availability."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4f567b9f8141a86c7d878fadf136e5d1408e3e61", "lessThan": "283e4bee701dfcd409dd293f19a268bb2bc8ff38", "versionType": "git"}, {"status": "affected", "version": "4f567b9f8141a86c7d878fadf136e5d1408e3e61", "lessThan": "d46ef750ed58cbeeba2d9a55c99231c30a172764", "versionType": "git"}], "programFiles": ["drivers/hid/amd-sfh-hid/amd_sfh_pcie.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.11"}, {"status": "unaffected", "version": "0", "lessThan": "5.11", "versionType": "semver"}, {"status": "unaffected", "version": "5.14.10", "versionType": "semver", "lessThanOrEqual": "5.14.*"}, {"status": "unaffected", "version": "5.15", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/hid/amd-sfh-hid/amd_sfh_pcie.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/283e4bee701dfcd409dd293f19a268bb2bc8ff38"}, {"url": "https://git.kernel.org/stable/c/d46ef750ed58cbeeba2d9a55c99231c30a172764"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: amd_sfh: Fix potential NULL pointer dereference\n\ndevm_add_action_or_reset() can suddenly invoke amd_mp2_pci_remove() at\nregistration that will cause NULL pointer dereference since\ncorresponding data is not initialized yet. The patch moves\ninitialization of data before devm_add_action_or_reset().\n\nFound by Linux Driver Verification project (linuxtesting.org).\n\n[jkosina@suse.cz: rebase]"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.14.10", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15", "versionStartIncluding": "5.11"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:47:32.385Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47380", "state": "PUBLISHED", "dateUpdated": "2026-08-05T08:47:32.385Z", "dateReserved": "2024-05-21T14:58:30.812Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-21T15:03:42.325Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/hid/amd-sfh-hid/amd_sfh_pcie.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "283e4bee701dfcd409dd293f19a268bb2bc8ff38", "status": "affected", "version": "4f567b9f8141a86c7d878fadf136e5d1408e3e61", "versionType": "git"}, {"lessThan": "d46ef750ed58cbeeba2d9a55c99231c30a172764", "status": "affected", "version": "4f567b9f8141a86c7d878fadf136e5d1408e3e61", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/hid/amd-sfh-hid/amd_sfh_pcie.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.11"}, {"lessThan": "5.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.14.*", "status": "unaffected", "version": "5.14.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.15", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D59E06FA-93F0-4A27-BD8C-6FDC6AEFE4B1", "versionEndExcluding": "5.14.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*", "matchCriteriaId": "E46C74C6-B76B-4C94-A6A4-FD2FFF62D644", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*", "matchCriteriaId": "60134C3A-06E4-48C1-B04F-2903732A4E56", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*", "matchCriteriaId": "0460DA88-8FE1-46A2-9DDA-1F1ABA552E71", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: amd_sfh: Fix potential NULL pointer dereference\n\ndevm_add_action_or_reset() can suddenly invoke amd_mp2_pci_remove() at\nregistration that will cause NULL pointer dereference since\ncorresponding data is not initialized yet. The patch moves\ninitialization of data before devm_add_action_or_reset().\n\nFound by Linux Driver Verification project (linuxtesting.org).\n\n[jkosina@suse.cz: rebase]"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: HID: amd_sfh: corrige una posible desreferencia del puntero NULL devm_add_action_or_reset() puede invocar repentinamente amd_mp2_pci_remove() en el registro, lo que provocar\u00e1 una desreferencia del puntero NULL ya que los datos correspondientes a\u00fan no se han inicializado. El parche mueve la inicializaci\u00f3n de los datos antes de devm_add_action_or_reset(). Encontrado por el proyecto de verificaci\u00f3n de controladores de Linux (linuxtesting.org). [jkosina@suse.cz: rebase] "}], "id": "CVE-2021-47380", "lastModified": "2026-08-04T10:17:00.757", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-47380", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-05-23T17:54:13.016769Z", "version": "2.0.3"}}]}, "published": "2024-05-21T15:15:23.663", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/283e4bee701dfcd409dd293f19a268bb2bc8ff38"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d46ef750ed58cbeeba2d9a55c99231c30a172764"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/283e4bee701dfcd409dd293f19a268bb2bc8ff38"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d46ef750ed58cbeeba2d9a55c99231c30a172764"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: HID: amd_sfh: Fix potential NULL pointer dereference", "id": "2282360", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282360"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nHID: amd_sfh: Fix potential NULL pointer dereference\ndevm_add_action_or_reset() can suddenly invoke amd_mp2_pci_remove() at\nregistration that will cause NULL pointer dereference since\ncorresponding data is not initialized yet. The patch moves\ninitialization of data before devm_add_action_or_reset().\nFound by Linux Driver Verification project (linuxtesting.org).\n[jkosina@suse.cz: rebase]"], "name": "CVE-2021-47380", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47380\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47380\nhttps://lore.kernel.org/linux-cve-announce/2024052143-CVE-2021-47380-8750@gregkh/T"], "threat_severity": "Low"}

{}