{"cve":"CVE-2026-68474","nvd":{"published":"2026-08-15T06:20:34.937","modified":"2026-08-17T06:17:56.837","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/spufs: fix out-of-bounds access in spufs_mem_mmap_access()\n\nspufs_mem_mmap_access() computes the local store offset as\naddress - vma->vm_start, but bounds-checks it against vma->vm_end\ninstead of the local store size. On 64-bit, offset is always well\nbelow vma->vm_end, so the clamp never fires and len stays unbounded\nagainst the LS_SIZE buffer returned by ctx->ops->get_ls().\n\nReject offsets at or beyond LS_SIZE and clamp len to the remaining\nspace, mirroring the guard already used by spufs_mem_mmap_fault() and\nspufs_ps_fault().","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://git.kernel.org/stable/c/3c1e92f75e11a11492b8cb901fceeb9f16ae6415","https://git.kernel.org/stable/c/47b87f469a35b5ffc81c16eee6b13a9b6c8d55c6","https://git.kernel.org/stable/c/4efa313b15925bdd864784865d6585174979294b","https://git.kernel.org/stable/c/913feef74354c653f10ecd4631df7618a95c49c2","https://git.kernel.org/stable/c/9d3569bfdceda69d5ffd5148901e57b69954d9ef"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:48:17.459049833+00:00"},"epss":{"cve":"CVE-2026-68474","score":0.00164,"percentile":0.056,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}