{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38661","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T04:51:24.031Z","datePublished":"2025-08-22T16:02:54.362Z","dateUpdated":"2026-08-05T12:03:48.256Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T12:03:48.256Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: alienware-wmi-wmax: Fix `dmi_system_id` array\n\nAdd missing empty member to `awcc_dmi_table`."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","baseScore":7.1,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - The defect is in `__init` code of a locally-loaded platform driver reached only through module load/boot on the affected hardware; there is no network, adjacent, or remote-peer input path into `dmi_first_match(awcc_dmi_table)`. Local access is the highest defensible vector since module loading and module-parameter control are local operations.\nAC:L - The out-of-bounds walk happens deterministically every time `alienware_wmax_wmi_init()` runs on a machine exposing WMAX_CONTROL_GUID — no race to win, no memory-layout grooming, and the driver config is default-enabled in distro kernels. Nothing about triggering it depends on conditions outside the attacker's reach.\nPR:L - The over-read executes as part of normal module initialization on affected systems, so it occurs without any privileged action, and consistent with prior kernel CNA scoring of missing-terminator OOB reads (CVE-2025-68195) no elevated privilege is credited. Low is chosen over High per the higher-severity-when-uncertain rule.\nUI:N - The table walk runs automatically during driver init at boot via udev autoload; no victim must open a file, mount anything, or take any other action.\nS:U - The out-of-bounds access and any resulting corruption stay entirely within the kernel's own security authority — no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - The read is unbounded rather than a few stray bytes: it walks arbitrarily far past the array in `.init.rodata` and, via a 7-bit `slot` value up to 127 indexing the 23-element `dmi_ident[]`, pulls a value from adjacent kernel static data and dereferences it as a string pointer, exposing arbitrary kernel memory to the matching logic.\nI:N - No attacker-controlled write primitive exists — the only writes through the garbage `awcc` pointer are fixed `true` bytes gated behind root-only, non-default `module_param_unsafe` force_* parameters, to an address the attacker cannot steer.\nA:H - Dereferencing an out-of-bounds `dmi_ident[]` entry as a string pointer, and later dereferencing the bogus `driver_data` value cached in the global `awcc`, readily oopses the kernel during boot-time driver initialization; KASAN builds report the out-of-bounds access outright."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/x86/dell/alienware-wmi-wmax.c"],"versions":[{"version":"6d7f1b1a5db61c4d654c84e17392916c4ef8ae6f","lessThan":"660bcd9f1f94e623e1316b869b2172b36eb516d7","status":"affected","versionType":"git"},{"version":"6d7f1b1a5db61c4d654c84e17392916c4ef8ae6f","lessThan":"8346c6af27f1c1410eb314f4be5875fdf1579a10","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/platform/x86/dell/alienware-wmi-wmax.c"],"versions":[{"version":"6.15","status":"affected"},{"version":"0","lessThan":"6.15","status":"unaffected","versionType":"semver"},{"version":"6.15.9","lessThanOrEqual":"6.15.*","status":"unaffected","versionType":"semver"},{"version":"6.16","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":"6.15","versionEndExcluding":"6.15.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.16"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/660bcd9f1f94e623e1316b869b2172b36eb516d7"},{"url":"https://git.kernel.org/stable/c/8346c6af27f1c1410eb314f4be5875fdf1579a10"}],"title":"platform/x86: alienware-wmi-wmax: Fix `dmi_system_id` array","x_generator":{"engine":"bippy-1.2.0"}}}}