CVE-2026-80649

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80649", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.779Z", "datePublished": "2026-08-28T06:48:58.203Z", "dateUpdated": "2026-08-29T06:21:42.793Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-29T06:21:42.793Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Fix OOB in scmi_power_name_get()\n\nscmi_power_name_get() does not validate the domain number passed by the\nexternal caller, which may lead to an out-of-bounds access.\n\nFix this by returning \"unknown\" for invalid domains, like\nscmi_reset_name_get() does."}], "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 - scmi_power_name_get() is only reachable from kernel-side SCMI power-domain driver probe/registration and other in-kernel callers of scmi_power_proto_ops on ARM/ARM64 SoCs (phones, automotive, embedded); there is no network, Bluetooth, or physical-user input path into this firmware helper.\nAC:L - Once an out-of-range domain index reaches scmi_power_name_get(), the flaw deterministically indexes past pi->dom_info with no races, timing, or uncontrollable memory layout; the attacker fully controls the domain argument supplied to the unchecked pointer arithmetic.\nPR:L - On typical ARM/Android/embedded deployments SCMI power-domain registration runs automatically during boot/driver bind; the vulnerable name_get op is published to external kernel drivers that may pass unchecked domain IDs from device metadata without requiring init-namespace root beyond ordinary local access on those systems.\nUI:N - Exploitation requires no victim interaction such as mounting filesystems or opening files; triggering depends only on kernel driver registration paths or module activity, not on actions by an interactive user.\nS:U - The out-of-bounds read corrupts/leaks kernel heap metadata within the same kernel security authority; it does not cross VM, container, IOMMU, or firmware trust boundaries in a way that changes CVSS scope.\nC:H - scmi_power_name_get() performs an out-of-bounds read of struct power_dom_info entries (including the 64-byte name field) when domain >= num_domains, exposing adjacent kmalloc slab contents and enabling kernel memory disclosure through returned string pointers.\nI:H - Kernel guidance treats out-of-bounds dom_info indexing as memory corruption; returning a pointer into adjacent heap objects used as genpd names can be leveraged on ARM SCMI deployments for further heap grooming and arbitrary kernel write/control-flow hijack primitives.\nA:H - Indexing far beyond the allocated dom_info array can return pointers into unmapped or non-string memory that fault when dereferenced for sysfs/genpd naming or logging, causing a kernel OOPS/panic and complete loss of availability until reboot."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/firmware/arm_scmi/power.c"], "versions": [{"version": "76a6550990e296a7acbb4d33201c9740be912a8c", "lessThan": "01613f5e4ff6c080260615392338e92e261d109b", "status": "affected", "versionType": "git"}, {"version": "76a6550990e296a7acbb4d33201c9740be912a8c", "lessThan": "ca94597440fa546e56293abe9d0af6c73535d44e", "status": "affected", "versionType": "git"}, {"version": "76a6550990e296a7acbb4d33201c9740be912a8c", "lessThan": "30aa348494531adfb043b2e883afc0439e5fcdca", "status": "affected", "versionType": "git"}, {"version": "76a6550990e296a7acbb4d33201c9740be912a8c", "lessThan": "0db2bb3c948ef8b7364768554d6ab5e1544dc441", "status": "affected", "versionType": "git"}, {"version": "76a6550990e296a7acbb4d33201c9740be912a8c", "lessThan": "11daac2817dca75e3eabb2050bc620c29e686fcd", "status": "affected", "versionType": "git"}, {"version": "76a6550990e296a7acbb4d33201c9740be912a8c", "lessThan": "11bb771f3c55b4cef3879e69da4ddecd6085569c", "status": "affected", "versionType": "git"}, {"version": "76a6550990e296a7acbb4d33201c9740be912a8c", "lessThan": "f9ef3f66f4b18078e464b7606f9497e4dbeb9905", "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/firmware/arm_scmi/power.c"], "versions": [{"version": "4.17", "status": "affected"}, {"version": "0", "lessThan": "4.17", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "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": "4.17", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/01613f5e4ff6c080260615392338e92e261d109b"}, {"url": "https://git.kernel.org/stable/c/ca94597440fa546e56293abe9d0af6c73535d44e"}, {"url": "https://git.kernel.org/stable/c/30aa348494531adfb043b2e883afc0439e5fcdca"}, {"url": "https://git.kernel.org/stable/c/0db2bb3c948ef8b7364768554d6ab5e1544dc441"}, {"url": "https://git.kernel.org/stable/c/11daac2817dca75e3eabb2050bc620c29e686fcd"}, {"url": "https://git.kernel.org/stable/c/11bb771f3c55b4cef3879e69da4ddecd6085569c"}, {"url": "https://git.kernel.org/stable/c/f9ef3f66f4b18078e464b7606f9497e4dbeb9905"}], "title": "firmware: arm_scmi: Fix OOB in scmi_power_name_get()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/firmware/arm_scmi/power.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "01613f5e4ff6c080260615392338e92e261d109b", "status": "affected", "version": "76a6550990e296a7acbb4d33201c9740be912a8c", "versionType": "git"}, {"lessThan": "ca94597440fa546e56293abe9d0af6c73535d44e", "status": "affected", "version": "76a6550990e296a7acbb4d33201c9740be912a8c", "versionType": "git"}, {"lessThan": "30aa348494531adfb043b2e883afc0439e5fcdca", "status": "affected", "version": "76a6550990e296a7acbb4d33201c9740be912a8c", "versionType": "git"}, {"lessThan": "0db2bb3c948ef8b7364768554d6ab5e1544dc441", "status": "affected", "version": "76a6550990e296a7acbb4d33201c9740be912a8c", "versionType": "git"}, {"lessThan": "11daac2817dca75e3eabb2050bc620c29e686fcd", "status": "affected", "version": "76a6550990e296a7acbb4d33201c9740be912a8c", "versionType": "git"}, {"lessThan": "11bb771f3c55b4cef3879e69da4ddecd6085569c", "status": "affected", "version": "76a6550990e296a7acbb4d33201c9740be912a8c", "versionType": "git"}, {"lessThan": "f9ef3f66f4b18078e464b7606f9497e4dbeb9905", "status": "affected", "version": "76a6550990e296a7acbb4d33201c9740be912a8c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/firmware/arm_scmi/power.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.17"}, {"lessThan": "4.17", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.212", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "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\nfirmware: arm_scmi: Fix OOB in scmi_power_name_get()\n\nscmi_power_name_get() does not validate the domain number passed by the\nexternal caller, which may lead to an out-of-bounds access.\n\nFix this by returning \"unknown\" for invalid domains, like\nscmi_reset_name_get() does."}], "id": "CVE-2026-80649", "lastModified": "2026-08-29T07:16:48.180", "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": "2026-08-28T08:16:49.897", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/01613f5e4ff6c080260615392338e92e261d109b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0db2bb3c948ef8b7364768554d6ab5e1544dc441"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/11bb771f3c55b4cef3879e69da4ddecd6085569c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/11daac2817dca75e3eabb2050bc620c29e686fcd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/30aa348494531adfb043b2e883afc0439e5fcdca"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ca94597440fa546e56293abe9d0af6c73535d44e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f9ef3f66f4b18078e464b7606f9497e4dbeb9905"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: firmware: arm_scmi: Fix OOB in scmi_power_name_get()", "id": "2525452", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2525452"}, "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-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nfirmware: arm_scmi: Fix OOB in scmi_power_name_get()\nscmi_power_name_get() does not validate the domain number passed by the\nexternal caller, which may lead to an out-of-bounds access.\nFix this by returning \"unknown\" for invalid domains, like\nscmi_reset_name_get() does.", "A flaw was found in the Linux kernel's System Control and Management Interface (SCMI) power management. The `scmi_power_name_get()` function fails to validate the domain number provided by an external caller. This oversight can lead to an out-of-bounds access, potentially allowing an attacker to read or write to unauthorized memory locations, which could result in system instability or information disclosure."], "name": "CVE-2026-80649", "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-2026-80649\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80649\nhttps://lore.kernel.org/linux-cve-announce/2026082843-CVE-2026-80649-ace2@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[76a6550990e296a7acbb4d33201c9740be912a8c,01613f5e4ff6c080260615392338e92e261d109b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[76a6550990e296a7acbb4d33201c9740be912a8c,ca94597440fa546e56293abe9d0af6c73535d44e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[76a6550990e296a7acbb4d33201c9740be912a8c,30aa348494531adfb043b2e883afc0439e5fcdca)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[76a6550990e296a7acbb4d33201c9740be912a8c,0db2bb3c948ef8b7364768554d6ab5e1544dc441)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[76a6550990e296a7acbb4d33201c9740be912a8c,11daac2817dca75e3eabb2050bc620c29e686fcd)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[76a6550990e296a7acbb4d33201c9740be912a8c,11bb771f3c55b4cef3879e69da4ddecd6085569c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[76a6550990e296a7acbb4d33201c9740be912a8c,f9ef3f66f4b18078e464b7606f9497e4dbeb9905)"}}], "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": "4.17"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.17)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.212,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.97,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "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": "2026-08-28T11:15:03.529102+00:00", "updated": "2026-08-29T09:30:07.576005+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-125", "CWE-20"]}