{"cve":"CVE-2026-97916","nvd":{"published":"2026-09-25T11:17:18.593","modified":"2026-10-21T13:21:15.810","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ivpu: Validate firmware log buffer metadata\n\nThe tracing log headers parsed by fw_log_print_buffer() reside in\nDMA-shared BOs that the NPU firmware can write to.\n\nfw_log_from_bo() validated log->header_size and log->size, but\nfw_log_print_buffer() re-read those same fields from shared memory\nafterwards, allowing a TOCTOU where firmware changes them between the\ncheck and the use, and making the host dereference out-of-bounds\naddresses while printing logs.\n\nSnapshot the validated values once with READ_ONCE() and pass them down\nexplicitly in a new struct ivpu_fw_log_desc instead of re-reading them\nfrom the shared struct.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/0724afc55c77c36c7feb9a7264b02aa7593c5c2d","https://git.kernel.org/stable/c/07d4190d75021c38b7994045179aa29131634d4f","https://git.kernel.org/stable/c/40868f80a89199630b03d4457876f9a1feba0660","https://git.kernel.org/stable/c/8ec3d6972f1440fae6c8dadd1859892775208759","https://git.kernel.org/stable/c/b1555f63ee1a680f280bc18e8dac416f250e2ec3"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-97916","score":0.00201,"percentile":0.0982,"date":"2026-10-25"},"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."]}