{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74467", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.902Z", "datePublished": "2026-08-15T12:27:05.635Z", "dateUpdated": "2026-08-19T16:37:10.278Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:37:10.278Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/qeth: Check CAP_NET_ADMIN for private ioctls\n\nGate the SIOCDEVPRIVATE ioctl commands SIOC_QETH_ADP_SET_SNMP_CONTROL,\nSIOC_QETH_GET_CARD_TYPE and SIOC_QETH_QUERY_OAT with CAP_NET_ADMIN\ncapable check to ensure unprivileged users cannot invoke them."}], "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 - Exploitation requires a local ioctl(2) on a qeth network interface via socket(SIOCDEVPRIVATE+5..+7); the path is sock_ioctl() -> dev_ioctl() -> dev_siocdevprivate() -> qeth_siocdevprivate() with no remote packet or network protocol entry point.\nAC:L - Any local user who can open an AF_INET socket and name a qeth netdev can invoke these ioctls deterministically; no races, special memory layout, or rare kernel configuration is required beyond s390 hardware with qeth present.\nPR:L - The bug is missing CAP_NET_ADMIN in qeth_siocdevprivate(); generic SIOCDEVPRIVATE handling in dev_ioctl() performs no capability check, so any unprivileged local account on an IBM Z/LinuxONE LPAR can reach these handlers without root or namespace-granted admin rights.\nUI:N - Exploitation needs only the attacker opening a socket and issuing ioctl against a qeth interface; no victim login, mount, or other interactive action is required on a shared mainframe guest.\nS:U - Impact stays within kernel/driver control of the local OSA/QDIO adapter and does not cross a VM, container, or IOMMU security boundary; this is standard local privilege and hardware-management misuse, not a guest-to-host escape.\nC:H - SIOC_QETH_QUERY_OAT and SIOC_QETH_ADP_SET_SNMP_CONTROL copy OSA Express firmware response buffers (link attributes, adapter operational data, SNMP MIB objects, card-type details) to unprivileged userspace, disclosing network hardware management information normally restricted to administrators.\nI:H - SIOC_QETH_ADP_SET_SNMP_CONTROL accepts attacker-controlled qeth_snmp_cmd request/data and forwards IPA_SETADP_SET_SNMP_CONTROL commands to OSA firmware, letting unprivileged users alter adapter SNMP/management state on production IBM Z network interfaces.\nA:H - Handlers honor attacker-chosen buffer sizes (kzalloc(udata_len) in qeth_snmp_command and vzalloc(buffer_len) in qeth_query_oat_command without upper bounds), enabling repeated large allocations for kernel memory exhaustion/OOM, and malformed IPA commands can disrupt adapter operation."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/s390/net/qeth_core_main.c"], "versions": [{"version": "18787eeebd7129ecf4960876d24f349682207783", "lessThan": "8fb69547924bbb3d7c900a0d7d137a7234db3f5f", "status": "affected", "versionType": "git"}, {"version": "18787eeebd7129ecf4960876d24f349682207783", "lessThan": "3ea5210db058347481c93849786982f874f7be2d", "status": "affected", "versionType": "git"}, {"version": "18787eeebd7129ecf4960876d24f349682207783", "lessThan": "4e48168825818bf4a13c743582227d15f1d30d04", "status": "affected", "versionType": "git"}, {"version": "18787eeebd7129ecf4960876d24f349682207783", "lessThan": "b40c74262f7e1e601221cebccdbdb2b392ff9976", "status": "affected", "versionType": "git"}, {"version": "18787eeebd7129ecf4960876d24f349682207783", "lessThan": "bd63c7879eaa87f1958f7ee027813356fcd9ff11", "status": "affected", "versionType": "git"}, {"version": "18787eeebd7129ecf4960876d24f349682207783", "lessThan": "93a0a846ec59a88e0c402878a15357a5ce430eb4", "status": "affected", "versionType": "git"}, {"version": "18787eeebd7129ecf4960876d24f349682207783", "lessThan": "d211028bac1bd0fff0026bfa2a8328e5b78cd0e6", "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/s390/net/qeth_core_main.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.216", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.183", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.151", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.103", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.44", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.8", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "5.15", "versionEndExcluding": "5.15.216"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.183"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.6.151"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.12.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.18.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "7.1.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8fb69547924bbb3d7c900a0d7d137a7234db3f5f"}, {"url": "https://git.kernel.org/stable/c/3ea5210db058347481c93849786982f874f7be2d"}, {"url": "https://git.kernel.org/stable/c/4e48168825818bf4a13c743582227d15f1d30d04"}, {"url": "https://git.kernel.org/stable/c/b40c74262f7e1e601221cebccdbdb2b392ff9976"}, {"url": "https://git.kernel.org/stable/c/bd63c7879eaa87f1958f7ee027813356fcd9ff11"}, {"url": "https://git.kernel.org/stable/c/93a0a846ec59a88e0c402878a15357a5ce430eb4"}, {"url": "https://git.kernel.org/stable/c/d211028bac1bd0fff0026bfa2a8328e5b78cd0e6"}], "title": "s390/qeth: Check CAP_NET_ADMIN for private ioctls", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/s390/net/qeth_core_main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "8fb69547924bbb3d7c900a0d7d137a7234db3f5f", "status": "affected", "version": "18787eeebd7129ecf4960876d24f349682207783", "versionType": "git"}, {"lessThan": "3ea5210db058347481c93849786982f874f7be2d", "status": "affected", "version": "18787eeebd7129ecf4960876d24f349682207783", "versionType": "git"}, {"lessThan": "4e48168825818bf4a13c743582227d15f1d30d04", "status": "affected", "version": "18787eeebd7129ecf4960876d24f349682207783", "versionType": "git"}, {"lessThan": "b40c74262f7e1e601221cebccdbdb2b392ff9976", "status": "affected", "version": "18787eeebd7129ecf4960876d24f349682207783", "versionType": "git"}, {"lessThan": "bd63c7879eaa87f1958f7ee027813356fcd9ff11", "status": "affected", "version": "18787eeebd7129ecf4960876d24f349682207783", "versionType": "git"}, {"lessThan": "93a0a846ec59a88e0c402878a15357a5ce430eb4", "status": "affected", "version": "18787eeebd7129ecf4960876d24f349682207783", "versionType": "git"}, {"lessThan": "d211028bac1bd0fff0026bfa2a8328e5b78cd0e6", "status": "affected", "version": "18787eeebd7129ecf4960876d24f349682207783", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/s390/net/qeth_core_main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.15"}, {"lessThan": "5.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.151", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.103", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.44", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/qeth: Check CAP_NET_ADMIN for private ioctls\n\nGate the SIOCDEVPRIVATE ioctl commands SIOC_QETH_ADP_SET_SNMP_CONTROL,\nSIOC_QETH_GET_CARD_TYPE and SIOC_QETH_QUERY_OAT with CAP_NET_ADMIN\ncapable check to ensure unprivileged users cannot invoke them."}], "id": "CVE-2026-74467", "lastModified": "2026-08-19T17:21:03.663", "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"}]}, "published": "2026-08-15T13:17:51.403", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3ea5210db058347481c93849786982f874f7be2d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4e48168825818bf4a13c743582227d15f1d30d04"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8fb69547924bbb3d7c900a0d7d137a7234db3f5f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/93a0a846ec59a88e0c402878a15357a5ce430eb4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b40c74262f7e1e601221cebccdbdb2b392ff9976"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bd63c7879eaa87f1958f7ee027813356fcd9ff11"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d211028bac1bd0fff0026bfa2a8328e5b78cd0e6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: s390/qeth: Check CAP_NET_ADMIN for private ioctls", "id": "2516973", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516973"}, "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"}, "cwe": "CWE-648", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ns390/qeth: Check CAP_NET_ADMIN for private ioctls\nGate the SIOCDEVPRIVATE ioctl commands SIOC_QETH_ADP_SET_SNMP_CONTROL,\nSIOC_QETH_GET_CARD_TYPE and SIOC_QETH_QUERY_OAT with CAP_NET_ADMIN\ncapable check to ensure unprivileged users cannot invoke them.", "A flaw was found in the s390/qeth component of the Linux kernel. An unprivileged local user could exploit this vulnerability by invoking specific SIOCDEVPRIVATE ioctl commands, such as SIOC_QETH_ADP_SET_SNMP_CONTROL, SIOC_QETH_GET_CARD_TYPE, and SIOC_QETH_QUERY_OAT. These commands were not properly restricted by the CAP_NET_ADMIN capability check, allowing unauthorized access to network administration functions. This could lead to a privilege escalation, enabling the unprivileged user to perform actions reserved for privileged accounts."], "name": "CVE-2026-74467", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74467\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74467\nhttps://lore.kernel.org/linux-cve-announce/2026081534-CVE-2026-74467-0904@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[18787eeebd7129ecf4960876d24f349682207783,4e48168825818bf4a13c743582227d15f1d30d04)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[18787eeebd7129ecf4960876d24f349682207783,b40c74262f7e1e601221cebccdbdb2b392ff9976)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[18787eeebd7129ecf4960876d24f349682207783,bd63c7879eaa87f1958f7ee027813356fcd9ff11)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[18787eeebd7129ecf4960876d24f349682207783,93a0a846ec59a88e0c402878a15357a5ce430eb4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[18787eeebd7129ecf4960876d24f349682207783,d211028bac1bd0fff0026bfa2a8328e5b78cd0e6)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.15"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.15)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.151,6.7.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.103,6.13.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.44,6.19.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.8,7.2.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc6,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T14:15:03.647558+00:00", "updated": "2026-08-22T00:30:16.943705+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}