{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80617", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.774Z", "datePublished": "2026-08-28T06:48:37.508Z", "dateUpdated": "2026-08-29T06:21:25.270Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-29T06:21:25.270Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: airoha: fix foe_check_time allocation size\n\nfoe_check_time is declared as u16 pointer but was allocated with\nonly ppe_num_entries bytes instead of ppe_num_entries * sizeof(u16).\n\nWhen airoha_ppe_foe_verify_entry() is called with hash >= ppe_num_entries/2,\nit writes beyond the allocated buffer, causing heap buffer overflow and\npotential kernel crash."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL"}, "scenarios": [{"lang": "en", "value": "AV:N - The overflow is reached from netdev RX when hardware PPE reports HIT_UNBIND_RATE_REACHED; on Airoha EN7581/AN7583 CPE/router SoCs this path is driven by remotely sourced Ethernet WAN/LAN or WiFi traffic without local syscall access.\nAC:L - An attacker controls packet 5-tuples and send rate to populate FOE entries and force CPU-reason 0x0f; roughly half of valid hash indices (hash >= ppe_num_entries/2) deterministically hit the undersized buffer, with only a 100ms per-hash software throttle.\nPR:N - Exploitation requires only the ability to send network packets to or through the device's registered interfaces; no local account, capability, namespace admin rights, or authentication on the RX/offload path.\nUI:N - No cooperative victim action is needed beyond normal always-on routing/bridging of attacker-supplied packets through the Airoha Ethernet or mt76 WiFi RX handlers.\nS:U - Impact is confined to kernel heap memory corruption and privilege escalation within the host running the Airoha driver; it does not cross a VM, hypervisor, or IOMMU security boundary.\nC:H - airoha_ppe_check_skb() performs an out-of-bounds read of ppe->foe_check_time[hash] before writing a u16 timestamp, and the adjacent heap overflow can expose or corrupt neighboring kernel objects.\nI:H - The same path writes a u16 beyond the allocated foe_check_time buffer, giving a kernel heap out-of-bounds write that can be leveraged for further memory corruption or control-flow manipulation.\nA:H - The fix commit explicitly warns of heap buffer overflow and potential kernel crash; corrupted adjacent heap metadata or pointers from the OOB access can trigger oops, panic, or loss of network availability."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/airoha/airoha_ppe.c"], "versions": [{"version": "56b99327a451917f1c17f85fc33ea8293c08a9ee", "lessThan": "112b5eff24e044561ee9599a0d34e0fcea1df4e0", "status": "affected", "versionType": "git"}, {"version": "6d5b601d52a27aafff555b480e538507901c672c", "lessThan": "9f7cd1e26d2f1766438edc9b9254f2c618f9ae98", "status": "affected", "versionType": "git"}, {"version": "6d5b601d52a27aafff555b480e538507901c672c", "lessThan": "5c121ee635680c93d7074becf14cfbaac140f80d", "status": "affected", "versionType": "git"}, {"version": "6.18.33", "lessThan": "6.18.40", "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/net/ethernet/airoha/airoha_ppe.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "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": "6.18.33", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/112b5eff24e044561ee9599a0d34e0fcea1df4e0"}, {"url": "https://git.kernel.org/stable/c/9f7cd1e26d2f1766438edc9b9254f2c618f9ae98"}, {"url": "https://git.kernel.org/stable/c/5c121ee635680c93d7074becf14cfbaac140f80d"}], "title": "net: airoha: fix foe_check_time allocation size", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/airoha/airoha_ppe.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "112b5eff24e044561ee9599a0d34e0fcea1df4e0", "status": "affected", "version": "56b99327a451917f1c17f85fc33ea8293c08a9ee", "versionType": "git"}, {"lessThan": "9f7cd1e26d2f1766438edc9b9254f2c618f9ae98", "status": "affected", "version": "6d5b601d52a27aafff555b480e538507901c672c", "versionType": "git"}, {"lessThan": "5c121ee635680c93d7074becf14cfbaac140f80d", "status": "affected", "version": "6d5b601d52a27aafff555b480e538507901c672c", "versionType": "git"}, {"lessThan": "6.18.40", "status": "affected", "version": "6.18.33", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/airoha/airoha_ppe.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.19"}, {"lessThan": "6.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "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\nnet: airoha: fix foe_check_time allocation size\n\nfoe_check_time is declared as u16 pointer but was allocated with\nonly ppe_num_entries bytes instead of ppe_num_entries * sizeof(u16).\n\nWhen airoha_ppe_foe_verify_entry() is called with hash >= ppe_num_entries/2,\nit writes beyond the allocated buffer, causing heap buffer overflow and\npotential kernel crash."}], "id": "CVE-2026-80617", "lastModified": "2026-08-29T07:16:46.490", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-08-28T08:16:45.723", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/112b5eff24e044561ee9599a0d34e0fcea1df4e0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5c121ee635680c93d7074becf14cfbaac140f80d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9f7cd1e26d2f1766438edc9b9254f2c618f9ae98"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: net: airoha: fix foe_check_time allocation size", "id": "2525443", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2525443"}, "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-787", "details": ["A flaw was found in the Linux kernel's net: airoha driver. An incorrect memory allocation size for the foe_check_time array can lead to a heap buffer overflow. When the airoha_ppe_foe_verify_entry() function is called with a specific hash value, it writes beyond the intended buffer. This out-of-bounds write can cause a kernel crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-80617", "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": "2026-08-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80617\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80617\nhttps://lore.kernel.org/linux-cve-announce/2026082835-CVE-2026-80617-b322@gregkh/T"], "threat_severity": "Moderate"}