{"id":"CVE-2026-80649","state":"PUBLISHED","title":"firmware: arm_scmi: Fix OOB in scmi_power_name_get()","description":"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.","publishedAt":"2026-08-28T06:48:58.203Z","updatedAt":"2026-08-29T06:21:42.793Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"Linux"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"01613f5e4ff6c080260615392338e92e261d109b","versionType":"git"},{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"ca94597440fa546e56293abe9d0af6c73535d44e","versionType":"git"},{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"30aa348494531adfb043b2e883afc0439e5fcdca","versionType":"git"},{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"0db2bb3c948ef8b7364768554d6ab5e1544dc441","versionType":"git"},{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"11daac2817dca75e3eabb2050bc620c29e686fcd","versionType":"git"},{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"11bb771f3c55b4cef3879e69da4ddecd6085569c","versionType":"git"},{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"f9ef3f66f4b18078e464b7606f9497e4dbeb9905","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/power.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.17","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/power.c"]}],"references":["https://git.kernel.org/stable/c/01613f5e4ff6c080260615392338e92e261d109b","https://git.kernel.org/stable/c/ca94597440fa546e56293abe9d0af6c73535d44e","https://git.kernel.org/stable/c/30aa348494531adfb043b2e883afc0439e5fcdca","https://git.kernel.org/stable/c/0db2bb3c948ef8b7364768554d6ab5e1544dc441","https://git.kernel.org/stable/c/11daac2817dca75e3eabb2050bc620c29e686fcd","https://git.kernel.org/stable/c/11bb771f3c55b4cef3879e69da4ddecd6085569c","https://git.kernel.org/stable/c/f9ef3f66f4b18078e464b7606f9497e4dbeb9905"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80649.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80649","state":"PUBLISHED","datePublished":"2026-08-28T06:48:58.203Z","dateUpdated":"2026-08-29T06:21:42.793Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.779Z"},"containers":{"cna":{"title":"firmware: arm_scmi: Fix OOB in scmi_power_name_get()","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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"01613f5e4ff6c080260615392338e92e261d109b","versionType":"git"},{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"ca94597440fa546e56293abe9d0af6c73535d44e","versionType":"git"},{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"30aa348494531adfb043b2e883afc0439e5fcdca","versionType":"git"},{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"0db2bb3c948ef8b7364768554d6ab5e1544dc441","versionType":"git"},{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"11daac2817dca75e3eabb2050bc620c29e686fcd","versionType":"git"},{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"11bb771f3c55b4cef3879e69da4ddecd6085569c","versionType":"git"},{"version":"76a6550990e296a7acbb4d33201c9740be912a8c","status":"affected","lessThan":"f9ef3f66f4b18078e464b7606f9497e4dbeb9905","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/power.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.17","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/power.c"]}],"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"}],"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."}]}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-29T06:21:42.793Z"},"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"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}